IBM Sterling B2B Integrator 5.2.0.1 through 6.0.0.0 Standard Edition could allow highly sensitive information to be transmitted in plain text. An attacker could obtain this information using man in the middle techniques. IBM X-ForceID: 157008.

  

**Summary**

IBM Sterling B2B Integrator Standard Edition has addressed the information disclosure vulnerability.

**Vulnerability Details**

**CVEID:** CVE-2019-4063  
**DESCRIPTION:** IBM Sterling B2B Integrator Standard Edition could allow highly sensitive information to be transmitted in plain text. An attacker could obtain this information using man in the middle techniques.  
CVSS Base Score: 5.9  
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/157008 for the current score  
CVSS Environmental Score\*: Undefined  
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N)

**Affected Products and Versions**

IBM Sterling B2B Integrator 5.2.0.1 - 6.0.0.0

**Remediation/Fixes**

**PRODUCT & Version**

**APAR**

**Remediation/Fix**

IBM Sterling B2B Integrator 5.2.0.1 - 6.0.0.0

IT26305

Apply IBM Sterling B2B Integrator version 5.2.6.3\_9 or 6.0.0.1 available on Fix Central

**Workarounds and Mitigations**

No

**References**

Off

**Change History**

28 February 2019: Original version published

\*The CVSS Environment Score is customer environment specific and will ultimately impact the Overall CVSS Score. Customers can evaluate the impact of this vulnerability in their environments by accessing the links in the Reference section of this Security Bulletin.

**Disclaimer**

Review the IBM security bulletin disclaimer and definitions regarding your responsibilities for assessing potential impact of security vulnerabilities to your environment.

**Internal Use Only**

PSIRT product record 129831

**Document Location**

Worldwide

\[{"Business Unit":{"code":"BU059","label":"IBM Software w\\/o TPS"},"Product":{"code":"SS3JSW","label":"IBM Sterling B2B Integrator"},"Component":"","Platform":\[{"code":"PF002","label":"AIX"},{"code":"PF016","label":"Linux"},{"code":"PF033","label":"Windows"}\],"Version":"5.2.0.1 - 6.0.0.0","Edition":"","Line of Business":{"code":"LOB59","label":"Sustainability Software"}}\]

CVE-2019-4063: Information Disclosure Security Vulnerability Affects IBM Sterling B2B Integrator (CVE-2019-4063)

IBM BigFix Platform 9.2 and 9.5 could allow an attacker to query the relay remotely and gather information about the updates and fixlets deployed to the associated sites due to not enabling authenticated access. IBM X-Force ID: 156869.

CVE-2019-4061: IBM BigFix Platform information disclosure CVE-2019-4061 Vulnerability Report

IBM Rational ClearCase 1.0.0.0 GIT connector does not sufficiently protect the document database password. An attacker could obtain the password and gain unauthorized access to the document database. IBM X-Force ID: 156583.

  

**Summary**

The local database password is not properly protected in the ClearCase GIT connector.

**Vulnerability Details**

**CVEID:** CVE-2019-4059  
**DESCRIPTION:** The ClearCase GIT connector does not sufficiently protect the document database password. An attacker could obtain the password and gain unauthorized access to the document database.  
CVSS Base Score: 7.5  
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/156583 for the current score  
CVSS Environmental Score\*: Undefined  
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N)

**Affected Products and Versions**

IBM Rational ClearCase GIT connector version 1.0.0.0

**Remediation/Fixes**

The solution is to install a fix that protects the database password.

Apply the relevant fixes as listed in the table below.

**Affected Versions**

**Applying the fix**

1.0.0.0

Install version 1.0.0.1, available at this link .

**Workarounds and Mitigations**

None

**References**

Off

**Change History**

\* 12 February 2019: Original version published

\*The CVSS Environment Score is customer environment specific and will ultimately impact the Overall CVSS Score. Customers can evaluate the impact of this vulnerability in their environments by accessing the links in the Reference section of this Security Bulletin.

**Disclaimer**

Review the IBM security bulletin disclaimer and definitions regarding your responsibilities for assessing potential impact of security vulnerabilities to your environment.

\[{"Business Unit":{"code":"BU053","label":"Cloud & Data Platform"},"Product":{"code":"SSSH27","label":"Rational ClearCase"},"Component":"ClearCase GIT Connector","Platform":\[{"code":"PF002","label":"AIX"},{"code":"PF010","label":"HP-UX"},{"code":"PF016","label":"Linux"},{"code":"PF027","label":"Solaris"}\],"Version":"1.0.0.0","Edition":"","Line of Business":{"code":"LOB45","label":"Automation"}}\]

CVE-2019-4059: IBM Rational ClearCase GIT connector password exposure (CVE-2019-4059)

IBM I 7.2 and 7.3 is vulnerable to cross-site scripting. This vulnerability allows users to embed arbitrary JavaScript code in the Web UI thus altering the intended functionality potentially leading to credentials disclosure within a trusted session. IBM X-Force ID: 156164.

CVE-2019-4040: IBM i cross-site scripting CVE-2019-4040 Vulnerability Report

In LibSass 3.5.5, a heap-based buffer over-read exists in Sass::Prelexer::alternatives in prelexer.hpp.

A heap-buffer-overflow in prelexer.hpp:69:14 in char const\* Sass::Prelexer::alternatives<&Sass::Prelexer::hexa, &(char const\* Sass::Prelexer::sequence<&(char const\* Sass::Prelexer::exactly<(char)40>(char const\*)), &(char const\* Sass::Prelexer::skip\_over\_scopes<&(char const\* Sass::Prelexer::exactly<(char)40>(char const\*)), &(char const\* Sass::Prelexer::exactly<(char)41>(char const\*))>(char const\*))>(char const\*))>(char const\*)

Compile and reproduce:  
CC=afl-clang-fast CXX=afl-clang-fast++ AFL_USE_ASAN=1 make -C sassc -j4

ldd:

    $ ldd sassc
    	linux-vdso.so.1 =>  (0x00007fffc6365000)
    	libdl.so.2 => /lib/x86_64-linux-gnu/libdl.so.2 (0x00007f731150d000)
    	libm.so.6 => /lib/x86_64-linux-gnu/libm.so.6 (0x00007f7311204000)
    	libstdc++.so.6 => /usr/lib/x86_64-linux-gnu/libstdc++.so.6 (0x00007f7310e82000)
    	libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0 (0x00007f7310c65000)
    	librt.so.1 => /lib/x86_64-linux-gnu/librt.so.1 (0x00007f7310a5d000)
    	libgcc_s.so.1 => /lib/x86_64-linux-gnu/libgcc_s.so.1 (0x00007f7310847000)
    	libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007f731047d000)
    	/lib64/ld-linux-x86-64.so.2 (0x00007f7311711000)
    

System information:  
Linux ubuntu64 4.15.0-29-generic #31~16.04.1-Ubuntu SMP Wed Jul 18 08:54:04 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux

Version: libsass-3.5.5、sassc-3.4.8

Poc: crash147.zip

Run: cat crash147 | ./sassc

ASAN:

    =================================================================
    ==3354==ERROR: AddressSanitizer: heap-buffer-overflow on address 0x60700000006a at pc 0x0000009591ef bp 0x7ffe65ea3260 sp 0x7ffe65ea3258
    READ of size 1 at 0x60700000006a thread T0
        #0 0x9591ee in char const* Sass::Prelexer::alternatives<&Sass::Prelexer::hexa, &(char const* Sass::Prelexer::sequence<&(char const* Sass::Prelexer::exactly<(char)40>(char const*)), &(char const* Sass::Prelexer::skip_over_scopes<&(char const* Sass::Prelexer::exactly<(char)40>(char const*)), &(char const* Sass::Prelexer::exactly<(char)41>(char const*))>(char const*))>(char const*))>(char const*) /home/eack/libsass/src/prelexer.hpp:69:14
        #1 0x958d3a in char const* Sass::Prelexer::alternatives<&Sass::Prelexer::hex, &Sass::Prelexer::hexa, &(char const* Sass::Prelexer::sequence<&(char const* Sass::Prelexer::exactly<(char)40>(char const*)), &(char const* Sass::Prelexer::skip_over_scopes<&(char const* Sass::Prelexer::exactly<(char)40>(char const*)), &(char const* Sass::Prelexer::exactly<(char)41>(char const*))>(char const*))>(char const*))>(char const*) /home/eack/libsass/src/lexer.hpp:212:14
        #2 0x958d3a in char const* Sass::Prelexer::alternatives<&Sass::Prelexer::number, &Sass::Prelexer::hex, &Sass::Prelexer::hexa, &(char const* Sass::Prelexer::sequence<&(char const* Sass::Prelexer::exactly<(char)40>(char const*)), &(char const* Sass::Prelexer::skip_over_scopes<&(char const* Sass::Prelexer::exactly<(char)40>(char const*)), &(char const* Sass::Prelexer::exactly<(char)41>(char const*))>(char const*))>(char const*))>(char const*) /home/eack/libsass/src/lexer.hpp:212
        #3 0x958d3a in char const* Sass::Prelexer::alternatives<&Sass::Prelexer::quoted_string, &Sass::Prelexer::number, &Sass::Prelexer::hex, &Sass::Prelexer::hexa, &(char const* Sass::Prelexer::sequence<&(char const* Sass::Prelexer::exactly<(char)40>(char const*)), &(char const* Sass::Prelexer::skip_over_scopes<&(char const* Sass::Prelexer::exactly<(char)40>(char const*)), &(char const* Sass::Prelexer::exactly<(char)41>(char const*))>(char const*))>(char const*))>(char const*) /home/eack/libsass/src/lexer.hpp:212
        #4 0x946c2c in char const* Sass::Prelexer::alternatives<&Sass::Prelexer::identifier, &Sass::Prelexer::quoted_string, &Sass::Prelexer::number, &Sass::Prelexer::hex, &Sass::Prelexer::hexa, &(char const* Sass::Prelexer::sequence<&(char const* Sass::Prelexer::exactly<(char)40>(char const*)), &(char const* Sass::Prelexer::skip_over_scopes<&(char const* Sass::Prelexer::exactly<(char)40>(char const*)), &(char const* Sass::Prelexer::exactly<(char)41>(char const*))>(char const*))>(char const*))>(char const*) /home/eack/libsass/src/lexer.hpp:212:14
        #5 0x946c2c in char const* Sass::Prelexer::alternatives<&Sass::Prelexer::identifier_schema, &Sass::Prelexer::identifier, &Sass::Prelexer::quoted_string, &Sass::Prelexer::number, &Sass::Prelexer::hex, &Sass::Prelexer::hexa, &(char const* Sass::Prelexer::sequence<&(char const* Sass::Prelexer::exactly<(char)40>(char const*)), &(char const* Sass::Prelexer::skip_over_scopes<&(char const* Sass::Prelexer::exactly<(char)40>(char const*)), &(char const* Sass::Prelexer::exactly<(char)41>(char const*))>(char const*))>(char const*))>(char const*) /home/eack/libsass/src/lexer.hpp:212
        #6 0x946c2c in char const* Sass::Prelexer::alternatives<&Sass::Prelexer::variable, &Sass::Prelexer::identifier_schema, &Sass::Prelexer::identifier, &Sass::Prelexer::quoted_string, &Sass::Prelexer::number, &Sass::Prelexer::hex, &Sass::Prelexer::hexa, &(char const* Sass::Prelexer::sequence<&(char const* Sass::Prelexer::exactly<(char)40>(char const*)), &(char const* Sass::Prelexer::skip_over_scopes<&(char const* Sass::Prelexer::exactly<(char)40>(char const*)), &(char const* Sass::Prelexer::exactly<(char)41>(char const*))>(char const*))>(char const*))>(char const*) /home/eack/libsass/src/lexer.hpp:212
        #7 0x946c2c in Sass::Prelexer::ie_keyword_arg_value(char const*) /home/eack/libsass/src/prelexer.cpp:1321
        #8 0x946dee in char const* Sass::Prelexer::sequence<&Sass::Prelexer::ie_keyword_arg_value>(char const*) /home/eack/libsass/src/lexer.hpp:221:20
        #9 0x946dee in char const* Sass::Prelexer::sequence<&Sass::Prelexer::optional_css_whitespace, &Sass::Prelexer::ie_keyword_arg_value>(char const*) /home/eack/libsass/src/lexer.hpp:228
        #10 0x946dee in char const* Sass::Prelexer::sequence<&(char const* Sass::Prelexer::exactly<(char)61>(char const*)), &Sass::Prelexer::optional_css_whitespace, &Sass::Prelexer::ie_keyword_arg_value>(char const*) /home/eack/libsass/src/lexer.hpp:228
        #11 0x946dee in char const* Sass::Prelexer::sequence<&Sass::Prelexer::optional_css_whitespace, &(char const* Sass::Prelexer::exactly<(char)61>(char const*)), &Sass::Prelexer::optional_css_whitespace, &Sass::Prelexer::ie_keyword_arg_value>(char const*) /home/eack/libsass/src/lexer.hpp:228
        #12 0x946dee in char const* Sass::Prelexer::sequence<&Sass::Prelexer::ie_keyword_arg_property, &Sass::Prelexer::optional_css_whitespace, &(char const* Sass::Prelexer::exactly<(char)61>(char const*)), &Sass::Prelexer::optional_css_whitespace, &Sass::Prelexer::ie_keyword_arg_value>(char const*) /home/eack/libsass/src/lexer.hpp:228
        #13 0x946dee in Sass::Prelexer::ie_keyword_arg(char const*) /home/eack/libsass/src/prelexer.cpp:1340
        #14 0x899ce2 in char const* Sass::Parser::peek<&Sass::Prelexer::ie_keyword_arg>(char const*) /home/eack/libsass/src/parser.hpp:136:27
        #15 0x899ce2 in Sass::Parser::parse_factor() /home/eack/libsass/src/parser.cpp:1470
        #16 0x891636 in Sass::Parser::parse_operators() /home/eack/libsass/src/parser.cpp:1416:29
        #17 0x886677 in Sass::Parser::parse_expression() /home/eack/libsass/src/parser.cpp:1375:26
        #18 0x88272c in Sass::Parser::parse_relation() /home/eack/libsass/src/parser.cpp:1320:26
        #19 0x87f37e in Sass::Parser::parse_conjunction() /home/eack/libsass/src/parser.cpp:1297:26
        #20 0x87d34e in Sass::Parser::parse_disjunction() /home/eack/libsass/src/parser.cpp:1275:27
        #21 0x83bc1b in Sass::Parser::parse_space_list() /home/eack/libsass/src/parser.cpp:1247:28
        #22 0x87ae39 in Sass::Parser::parse_comma_list(bool) /home/eack/libsass/src/parser.cpp:1216:27
        #23 0x835b3e in Sass::Parser::parse_list(bool) /home/eack/libsass/src/parser.cpp:1200:12
        #24 0x830d9b in Sass::Parser::parse_declaration() /home/eack/libsass/src/parser.cpp:1074:17
        #25 0x7fa3d2 in Sass::Parser::parse_block_node(bool) /home/eack/libsass/src/parser.cpp:309:30
        #26 0x7eee86 in Sass::Parser::parse_block_nodes(bool) /home/eack/libsass/src/parser.cpp:197:11
        #27 0x7f379f in Sass::Parser::parse_css_block(bool) /home/eack/libsass/src/parser.cpp:154:10
        #28 0x81ce00 in Sass::Parser::parse_block(bool) /home/eack/libsass/src/parser.cpp:178:12
        #29 0x81ce00 in Sass::Parser::parse_ruleset(Lookahead) /home/eack/libsass/src/parser.cpp:538
        #30 0x7f8c3b in Sass::Parser::parse_block_node(bool) /home/eack/libsass/src/parser.cpp:279:21
        #31 0x7eee86 in Sass::Parser::parse_block_nodes(bool) /home/eack/libsass/src/parser.cpp:197:11
        #32 0x7ea18f in Sass::Parser::parse() /home/eack/libsass/src/parser.cpp:123:5
        #33 0x611d5b in Sass::Context::register_resource(Sass::Include const&, Sass::Resource const&) /home/eack/libsass/src/context.cpp:324:24
        #34 0x62e930 in Sass::Data_Context::parse() /home/eack/libsass/src/context.cpp:636:5
        #35 0x5b9926 in Sass::sass_parse_block(Sass_Compiler*) /home/eack/libsass/src/sass_context.cpp:234:31
        #36 0x5b9926 in sass_compiler_parse /home/eack/libsass/src/sass_context.cpp:483
        #37 0x5b85c2 in sass_compile_context(Sass_Context*, Sass::Context*) /home/eack/libsass/src/sass_context.cpp:371:7
        #38 0x5b81ac in sass_compile_data_context /home/eack/libsass/src/sass_context.cpp:456:12
        #39 0x5a7069 in compile_stdin /home/eack/sassc/sassc.c:138:5
        #40 0x5a81ed in main /home/eack/sassc/sassc.c:375:18
        #41 0x7fdf02f2c82f in __libc_start_main /build/glibc-Cl5G7W/glibc-2.23/csu/../csu/libc-start.c:291
        #42 0x4aad88 in _start (/home/eack/sassc/bin/sassc+0x4aad88)
    
    0x60700000006a is located 0 bytes to the right of 74-byte region [0x607000000020,0x60700000006a)
    allocated by thread T0 here:
        #0 0x56f420 in realloc /home/eack/llvm-install/llvm-6.0.1.src/projects/compiler-rt/lib/asan/asan_malloc_linux.cc:107
        #1 0x5a6f22 in compile_stdin /home/eack/sassc/sassc.c:112:25
        #2 0x5a81ed in main /home/eack/sassc/sassc.c:375:18
        #3 0x7fdf02f2c82f in __libc_start_main /build/glibc-Cl5G7W/glibc-2.23/csu/../csu/libc-start.c:291
    
    SUMMARY: AddressSanitizer: heap-buffer-overflow /home/eack/libsass/src/prelexer.hpp:69:14 in char const* Sass::Prelexer::alternatives<&Sass::Prelexer::hexa, &(char const* Sass::Prelexer::sequence<&(char const* Sass::Prelexer::exactly<(char)40>(char const*)), &(char const* Sass::Prelexer::skip_over_scopes<&(char const* Sass::Prelexer::exactly<(char)40>(char const*)), &(char const* Sass::Prelexer::exactly<(char)41>(char const*))>(char const*))>(char const*))>(char const*)
    Shadow bytes around the buggy address:
      0x0c0e7fff7fb0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
      0x0c0e7fff7fc0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
      0x0c0e7fff7fd0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
      0x0c0e7fff7fe0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
      0x0c0e7fff7ff0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    =>0x0c0e7fff8000: fa fa fa fa 00 00 00 00 00 00 00 00 00[02]fa fa
      0x0c0e7fff8010: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
      0x0c0e7fff8020: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
      0x0c0e7fff8030: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
      0x0c0e7fff8040: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
      0x0c0e7fff8050: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
    Shadow byte legend (one shadow byte represents 8 application bytes):
      Addressable:           00
      Partially addressable: 01 02 03 04 05 06 07 
      Heap left redzone:       fa
      Freed heap region:       fd
      Stack left redzone:      f1
      Stack mid redzone:       f2
      Stack right redzone:     f3
      Stack after return:      f5
      Stack use after scope:   f8
      Global redzone:          f9
      Global init order:       f6
      Poisoned by user:        f7
      Container overflow:      fc
      Array cookie:            ac
      Intra object redzone:    bb
      ASan internal:           fe
      Left alloca redzone:     ca
      Right alloca redzone:    cb
    ==3354==ABORTING

CVE-2019-6284: AddressSanitizer: heap-buffer-overflow  · Issue #2816 · sass/libsass

In LibSass 3.5.5, a heap-based buffer over-read exists in Sass::Prelexer::parenthese_scope in prelexer.hpp.

A heap-buffer-overflow in prelexer.hpp:70:14 in Sass::Prelexer::parenthese\_scope(char const\*)

Compile and reproduce:  
CC=afl-clang-fast CXX=afl-clang-fast++ AFL_USE_ASAN=1 make -C sassc -j4

ldd:

    $ ldd sassc
    	linux-vdso.so.1 =>  (0x00007fffc6365000)
    	libdl.so.2 => /lib/x86_64-linux-gnu/libdl.so.2 (0x00007f731150d000)
    	libm.so.6 => /lib/x86_64-linux-gnu/libm.so.6 (0x00007f7311204000)
    	libstdc++.so.6 => /usr/lib/x86_64-linux-gnu/libstdc++.so.6 (0x00007f7310e82000)
    	libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0 (0x00007f7310c65000)
    	librt.so.1 => /lib/x86_64-linux-gnu/librt.so.1 (0x00007f7310a5d000)
    	libgcc_s.so.1 => /lib/x86_64-linux-gnu/libgcc_s.so.1 (0x00007f7310847000)
    	libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007f731047d000)
    	/lib64/ld-linux-x86-64.so.2 (0x00007f7311711000)
    

System information:  
Linux ubuntu64 4.15.0-29-generic #31~16.04.1-Ubuntu SMP Wed Jul 18 08:54:04 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux

Version: libsass-3.5.5、sassc-3.4.8

Poc: crash27.zip

Run: cat crash27 | ./sassc

ASAN:

    =================================================================
    ==3211==ERROR: AddressSanitizer: heap-buffer-overflow on address 0x6030000019ac at pc 0x000000949dfd bp 0x7ffcd8af8180 sp 0x7ffcd8af8178
    READ of size 1 at 0x6030000019ac thread T0
        #0 0x949dfc in Sass::Prelexer::parenthese_scope(char const*) /home/eack/libsass/src/prelexer.hpp:69:14
        #1 0x931fd1 in char const* Sass::Prelexer::sequence<&Sass::Prelexer::parenthese_scope, &Sass::Prelexer::interpolant, &(char const* Sass::Prelexer::optional<&Sass::Prelexer::quoted_string>(char const*))>(char const*) /home/eack/libsass/src/lexer.hpp:227:20
        #2 0x931fd1 in char const* Sass::Prelexer::alternatives<&(char const* Sass::Prelexer::sequence<&Sass::Prelexer::parenthese_scope, &Sass::Prelexer::interpolant, &(char const* Sass::Prelexer::optional<&Sass::Prelexer::quoted_string>(char const*))>(char const*))>(char const*) /home/eack/libsass/src/lexer.hpp:205
        #3 0x931fd1 in char const* Sass::Prelexer::alternatives<&Sass::Prelexer::variable, &(char const* Sass::Prelexer::sequence<&Sass::Prelexer::parenthese_scope, &Sass::Prelexer::interpolant, &(char const* Sass::Prelexer::optional<&Sass::Prelexer::quoted_string>(char const*))>(char const*))>(char const*) /home/eack/libsass/src/lexer.hpp:212
        #4 0x931fd1 in char const* Sass::Prelexer::alternatives<&Sass::Prelexer::identifier, &Sass::Prelexer::variable, &(char const* Sass::Prelexer::sequence<&Sass::Prelexer::parenthese_scope, &Sass::Prelexer::interpolant, &(char const* Sass::Prelexer::optional<&Sass::Prelexer::quoted_string>(char const*))>(char const*))>(char const*) /home/eack/libsass/src/lexer.hpp:212
        #5 0x931fd1 in char const* Sass::Prelexer::alternatives<&(char const* Sass::Prelexer::sequence<&Sass::Prelexer::interpolant, &(char const* Sass::Prelexer::optional<&Sass::Prelexer::quoted_string>(char const*))>(char const*)), &Sass::Prelexer::identifier, &Sass::Prelexer::variable, &(char const* Sass::Prelexer::sequence<&Sass::Prelexer::parenthese_scope, &Sass::Prelexer::interpolant, &(char const* Sass::Prelexer::optional<&Sass::Prelexer::quoted_string>(char const*))>(char const*))>(char const*) /home/eack/libsass/src/lexer.hpp:212
        #6 0x931fd1 in char const* Sass::Prelexer::alternatives<&Sass::Prelexer::block_comment, &(char const* Sass::Prelexer::sequence<&Sass::Prelexer::interpolant, &(char const* Sass::Prelexer::optional<&Sass::Prelexer::quoted_string>(char const*))>(char const*)), &Sass::Prelexer::identifier, &Sass::Prelexer::variable, &(char const* Sass::Prelexer::sequence<&Sass::Prelexer::parenthese_scope, &Sass::Prelexer::interpolant, &(char const* Sass::Prelexer::optional<&Sass::Prelexer::quoted_string>(char const*))>(char const*))>(char const*) /home/eack/libsass/src/lexer.hpp:212
        #7 0x931fd1 in char const* Sass::Prelexer::non_greedy<&(char const* Sass::Prelexer::alternatives<&Sass::Prelexer::block_comment, &(char const* Sass::Prelexer::sequence<&Sass::Prelexer::interpolant, &(char const* Sass::Prelexer::optional<&Sass::Prelexer::quoted_string>(char const*))>(char const*)), &Sass::Prelexer::identifier, &Sass::Prelexer::variable, &(char const* Sass::Prelexer::sequence<&Sass::Prelexer::parenthese_scope, &Sass::Prelexer::interpolant, &(char const* Sass::Prelexer::optional<&Sass::Prelexer::quoted_string>(char const*))>(char const*))>(char const*)), &(char const* Sass::Prelexer::sequence<&(char const* Sass::Prelexer::alternatives<&(char const* Sass::Prelexer::exactly<(char)123>(char const*)), &(char const* Sass::Prelexer::exactly<(char)125>(char const*)), &(char const* Sass::Prelexer::exactly<(char)59>(char const*))>(char const*))>(char const*))>(char const*) /home/eack/libsass/src/lexer.hpp:265
        #8 0x8434a6 in char const* Sass::Parser::peek<&(char const* Sass::Prelexer::non_greedy<&(char const* Sass::Prelexer::alternatives<&Sass::Prelexer::block_comment, &(char const* Sass::Prelexer::sequence<&Sass::Prelexer::interpolant, &(char const* Sass::Prelexer::optional<&Sass::Prelexer::quoted_string>(char const*))>(char const*)), &Sass::Prelexer::identifier, &Sass::Prelexer::variable, &(char const* Sass::Prelexer::sequence<&Sass::Prelexer::parenthese_scope, &Sass::Prelexer::interpolant, &(char const* Sass::Prelexer::optional<&Sass::Prelexer::quoted_string>(char const*))>(char const*))>(char const*)), &(char const* Sass::Prelexer::sequence<&(char const* Sass::Prelexer::alternatives<&(char const* Sass::Prelexer::exactly<(char)123>(char const*)), &(char const* Sass::Prelexer::exactly<(char)125>(char const*)), &(char const* Sass::Prelexer::exactly<(char)59>(char const*))>(char const*))>(char const*))>(char const*))>(char const*) /home/eack/libsass/src/parser.hpp:136:27
        #9 0x8434a6 in Sass::Parser::lookahead_for_value(char const*) /home/eack/libsass/src/parser.cpp:2862
        #10 0x7fedcc in Sass::Parser::parse_assignment() /home/eack/libsass/src/parser.cpp:503:27
        #11 0x7f5638 in Sass::Parser::parse_block_node(bool) /home/eack/libsass/src/parser.cpp:229:49
        #12 0x7eee86 in Sass::Parser::parse_block_nodes(bool) /home/eack/libsass/src/parser.cpp:197:11
        #13 0x7ea18f in Sass::Parser::parse() /home/eack/libsass/src/parser.cpp:123:5
        #14 0x611d5b in Sass::Context::register_resource(Sass::Include const&, Sass::Resource const&) /home/eack/libsass/src/context.cpp:324:24
        #15 0x62e930 in Sass::Data_Context::parse() /home/eack/libsass/src/context.cpp:636:5
        #16 0x5b9926 in Sass::sass_parse_block(Sass_Compiler*) /home/eack/libsass/src/sass_context.cpp:234:31
        #17 0x5b9926 in sass_compiler_parse /home/eack/libsass/src/sass_context.cpp:483
        #18 0x5b85c2 in sass_compile_context(Sass_Context*, Sass::Context*) /home/eack/libsass/src/sass_context.cpp:371:7
        #19 0x5b81ac in sass_compile_data_context /home/eack/libsass/src/sass_context.cpp:456:12
        #20 0x5a7069 in compile_stdin /home/eack/sassc/sassc.c:138:5
        #21 0x5a81ed in main /home/eack/sassc/sassc.c:375:18
        #22 0x7f6362d7882f in __libc_start_main /build/glibc-Cl5G7W/glibc-2.23/csu/../csu/libc-start.c:291
        #23 0x4aad88 in _start (/home/eack/sassc/bin/sassc+0x4aad88)
    
    0x6030000019ac is located 0 bytes to the right of 28-byte region [0x603000001990,0x6030000019ac)
    allocated by thread T0 here:
        #0 0x56f420 in realloc /home/eack/llvm-install/llvm-6.0.1.src/projects/compiler-rt/lib/asan/asan_malloc_linux.cc:107
        #1 0x5a6f22 in compile_stdin /home/eack/sassc/sassc.c:112:25
        #2 0x5a81ed in main /home/eack/sassc/sassc.c:375:18
        #3 0x7f6362d7882f in __libc_start_main /build/glibc-Cl5G7W/glibc-2.23/csu/../csu/libc-start.c:291
    
    SUMMARY: AddressSanitizer: heap-buffer-overflow /home/eack/libsass/src/prelexer.hpp:69:14 in Sass::Prelexer::parenthese_scope(char const*)
    Shadow bytes around the buggy address:
      0x0c067fff82e0: 07 fa fa fa 00 00 00 fa fa fa 00 00 06 fa fa fa
      0x0c067fff82f0: 00 00 04 fa fa fa 00 00 07 fa fa fa 00 00 00 fa
      0x0c067fff8300: fa fa 00 00 06 fa fa fa 00 00 04 fa fa fa 00 00
      0x0c067fff8310: 07 fa fa fa 00 00 00 fa fa fa 00 00 06 fa fa fa
      0x0c067fff8320: 00 00 04 fa fa fa 00 00 07 fa fa fa 00 00 00 fa
    =>0x0c067fff8330: fa fa 00 00 00[04]fa fa fd fd fd fa fa fa fd fd
      0x0c067fff8340: fd fa fa fa fd fd fd fa fa fa fd fd fd fa fa fa
      0x0c067fff8350: fd fd fd fa fa fa fd fd fd fa fa fa fd fd fd fa
      0x0c067fff8360: fa fa fd fd fd fa fa fa fd fd fd fa fa fa fd fd
      0x0c067fff8370: fd fa fa fa fd fd fd fa fa fa fd fd fd fd fa fa
      0x0c067fff8380: 00 00 00 03 fa fa 00 00 00 03 fa fa 00 00 00 00
    Shadow byte legend (one shadow byte represents 8 application bytes):
      Addressable:           00
      Partially addressable: 01 02 03 04 05 06 07 
      Heap left redzone:       fa
      Freed heap region:       fd
      Stack left redzone:      f1
      Stack mid redzone:       f2
      Stack right redzone:     f3
      Stack after return:      f5
      Stack use after scope:   f8
      Global redzone:          f9
      Global init order:       f6
      Poisoned by user:        f7
      Container overflow:      fc
      Array cookie:            ac
      Intra object redzone:    bb
      ASan internal:           fe
      Left alloca redzone:     ca
      Right alloca redzone:    cb
    ==3211==ABORTING

CVE-2019-6283: AddressSanitizer: heap-buffer-overflow /home/eack/libsass/src/prelexer.hpp:69:14 in Sass::Prelexer::parenthese_scope(char const*) · Issue #2814 · sass/libsass

Spark's Apache Maven-based build includes a convenience script, 'build/mvn', that downloads and runs a zinc server to speed up compilation. It has been included in release branches since 1.3.x, up to and including master. This server will accept connections from external hosts by default. A specially-crafted request to the zinc server could cause it to reveal information in files readable to the developer account running the build. Note that this issue does not affect end users of Spark, only developers building Spark from source code.

**Reporting security issues**

Apache Spark uses the standard process outlined by the Apache Security Team for reporting vulnerabilities. Note that vulnerabilities should not be publicly disclosed until the project has responded.

To report a possible security vulnerability, please email security@spark.apache.org. This is a non-public list that will reach the Apache Security team, as well as the Spark PMC.

**Known security issues****CVE-2022-31777: Apache Spark XSS vulnerability in log viewer UI Javascript**

Severity: Medium

Vendor: The Apache Software Foundation

Versions Affected:

*   3.2.1 and earlier
*   3.3.0

Description:

A stored cross-site scripting (XSS) vulnerability in Apache Spark 3.2.1 and earlier, and 3.3.0, allows remote attackers to execute arbitrary JavaScript in the web browser of a user, by including a malicious payload into the logs which would be returned in logs rendered in the UI.

Mitigation:

*   Upgrade to Spark 3.2.2, or 3.3.1 or later

Credit:

*   Florian Walter (Veracode)

**CVE-2022-33891: Apache Spark shell command injection vulnerability via Spark UI**

Severity: Important

Vendor: The Apache Software Foundation

Versions Affected:

*   3.0.3 and earlier
*   3.1.1 to 3.1.2
*   3.2.0 to 3.2.1

Description:

The Apache Spark UI offers the possibility to enable ACLs via the configuration option spark.acls.enable. With an authentication filter, this checks whether a user has access permissions to view or modify the application. If ACLs are enabled, a code path in HttpSecurityFilter can allow someone to perform impersonation by providing an arbitrary user name. A malicious user might then be able to reach a permission check function that will ultimately build a Unix shell command based on their input, and execute it. This will result in arbitrary shell command execution as the user Spark is currently running as.

Mitigation

*   Update to Spark 3.1.3, 3.2.2, or 3.3.0 or later

Credit:

*   Kostya Torchinsky (Databricks)

**CVE-2021-38296: Apache Spark™ Key Negotiation Vulnerability**

Severity: Medium

Vendor: The Apache Software Foundation

Versions Affected:

*   Apache Spark 3.1.2 and earlier

Description:

Apache Spark supports end-to-end encryption of RPC connections via spark.authenticate and spark.network.crypto.enabled. In versions 3.1.2 and earlier, it uses a bespoke mutual authentication protocol that allows for full encryption key recovery. After an initial interactive attack, this would allow someone to decrypt plaintext traffic offline. Note that this does not affect security mechanisms controlled by spark.authenticate.enableSaslEncryption, spark.io.encryption.enabled, spark.ssl, spark.ui.strictTransportSecurity.

Mitigation:

*   Update to Spark 3.1.3 or later

Credit:

*   Steve Weis (Databricks)

**CVE-2020-9480: Apache Spark™ RCE vulnerability in auth-enabled standalone master**

Severity: Important

Vendor: The Apache Software Foundation

Versions Affected:

*   Apache Spark 2.4.5 and earlier

Description:

In Apache Spark 2.4.5 and earlier, a standalone resource manager’s master may be configured to require authentication (spark.authenticate) via a shared secret. When enabled, however, a specially-crafted RPC to the master can succeed in starting an application’s resources on the Spark cluster, even without the shared key. This can be leveraged to execute shell commands on the host machine.

This does not affect Spark clusters using other resource managers (YARN, Mesos, etc).

Mitigation:

*   Users should update to Spark 2.4.6 or 3.0.0.
*   Where possible, network access to the cluster machines should be restricted to trusted hosts only.

Credit:

*   Ayoub Elaassal

**CVE-2019-10099: Apache Spark™ unencrypted data on local disk**

Severity: Important

Vendor: The Apache Software Foundation

Versions affected:

*   All Spark 1.x, Spark 2.0.x, Spark 2.1.x, and 2.2.x versions
*   Spark 2.3.0 to 2.3.2

Description:

Prior to Spark 2.3.3, in certain situations Spark would write user data to local disk unencrypted, even if spark.io.encryption.enabled=true. This includes cached blocks that are fetched to disk (controlled by spark.maxRemoteBlockSizeFetchToMem); in SparkR, using parallelize; in Pyspark, using broadcast and parallelize; and use of python udfs.

Mitigation:

*   1.x, 2.0.x, 2.1.x, 2.2.x, 2.3.x users should upgrade to 2.3.3 or newer, including 2.4.x

Credit:

*   This issue was reported by Thomas Graves of NVIDIA.

**CVE-2018-11760: Apache Spark™ local privilege escalation vulnerability**

Severity: Important

Vendor: The Apache Software Foundation

Versions affected:

*   All Spark 1.x, Spark 2.0.x, and Spark 2.1.x versions
*   Spark 2.2.0 to 2.2.2
*   Spark 2.3.0 to 2.3.1

Description:

When using PySpark, it’s possible for a different local user to connect to the Spark application and impersonate the user running the Spark application. This affects versions 1.x, 2.0.x, 2.1.x, 2.2.0 to 2.2.2, and 2.3.0 to 2.3.1.

Mitigation:

*   1.x, 2.0.x, 2.1.x, and 2.2.x users should upgrade to 2.2.3 or newer
*   2.3.x users should upgrade to 2.3.2 or newer
*   Otherwise, affected users should avoid using PySpark in multi-user environments.

Credit:

*   Luca Canali and Jose Carlos Luna Duran, CERN

**CVE-2018-17190: Unsecured Apache Spark™ standalone executes user code**

Severity: Low

Vendor: The Apache Software Foundation

Versions Affected:

*   All versions of Apache Spark

Description:

Spark’s standalone resource manager accepts code to execute on a ‘master’ host, that then runs that code on ‘worker’ hosts. The master itself does not, by design, execute user code. A specially-crafted request to the master can, however, cause the master to execute code too. Note that this does not affect standalone clusters with authentication enabled. While the master host typically has less outbound access to other resources than a worker, the execution of code on the master is nevertheless unexpected.

Mitigation:

Enable authentication on any Spark standalone cluster that is not otherwise secured from unwanted access, for example by network-level restrictions. Use spark.authenticate and related security properties described at https://spark.apache.org/docs/latest/security.html

Credit:

*   Andre Protas, Apple Information Security

**CVE-2018-11804: Apache Spark™ build/mvn runs zinc, and can expose information from build machines**

Severity: Low

Vendor: The Apache Software Foundation

Versions Affected

*   2.1.x release branch and earlier
*   2.2.x release branch before Spark 2.2.3
*   2.3.x release branch before Spark 2.3.3

Description:

Spark’s Apache Maven-based build includes a convenience script, ‘build/mvn’, that downloads and runs a zinc server to speed up compilation. This server will accept connections from external hosts by default. A specially-crafted request to the zinc server could cause it to reveal information in files readable to the developer account running the build. Note that this issue does not affect end users of Spark, only developers building Spark from source code.

Mitigation:

*   Spark users are not affected, as zinc is only a part of the build process.
*   Spark developers may simply use a local Maven installation’s ‘mvn’ command to build, and avoid running build/mvn and zinc.
*   Spark developers building actively-developed branches (2.2.x, 2.3.x, 2.4.x, master) may update their branches to receive mitigations already patched onto the build/mvn script
*   Spark developers running zinc separately may include “-server 127.0.0.1” in its command line, and consider additional flags like “-idle-timeout 30m” to achieve similar mitigation.

Credit:

*   Andre Protas, Apple Information Security

**CVE-2018-11770: Apache Spark™ standalone master, Mesos REST APIs not controlled by authentication**

Severity: Medium

Vendor: The Apache Software Foundation

Versions Affected:

*   Spark versions from 1.3.0, running standalone master with REST API enabled, or running Mesos master with cluster mode enabled; suggested mitigations resolved the issue as of Spark 2.4.0.

Description:

From version 1.3.0 onward, Spark’s standalone master exposes a REST API for job submission, in addition to the submission mechanism used by spark-submit. In standalone, the config property spark.authenticate.secret establishes a shared secret for authenticating requests to submit jobs via spark-submit. However, the REST API does not use this or any other authentication mechanism, and this is not adequately documented. In this case, a user would be able to run a driver program without authenticating, but not launch executors, using the REST API. This REST API is also used by Mesos, when set up to run in cluster mode (i.e., when also running MesosClusterDispatcher), for job submission. Future versions of Spark will improve documentation on these points, and prohibit setting spark.authenticate.secret when running the REST APIs, to make this clear. Future versions will also disable the REST API by default in the standalone master by changing the default value of spark.master.rest.enabled to false.

Mitigation:

For standalone masters, disable the REST API by setting spark.master.rest.enabled to false if it is unused, and/or ensure that all network access to the REST API (port 6066 by default) is restricted to hosts that are trusted to submit jobs. Mesos users can stop the MesosClusterDispatcher, though that will prevent them from running jobs in cluster mode. Alternatively, they can ensure access to the MesosRestSubmissionServer (port 7077 by default) is restricted to trusted hosts.

Credit:

*   Imran Rashid, Cloudera
*   Fengwei Zhang, Alibaba Cloud Security Team

**CVE-2018-8024: Apache Spark™ XSS vulnerability in UI**

Severity: Medium

Versions Affected:

*   Spark 2.1.0 through 2.1.2
*   Spark 2.2.0 through 2.2.1
*   Spark 2.3.0

Description:

In Apache Spark 2.1.0 to 2.1.2, 2.2.0 to 2.2.1, and 2.3.0, it’s possible for a malicious user to construct a URL pointing to a Spark cluster’s UI’s job and stage info pages, and if a user can be tricked into accessing the URL, can be used to cause script to execute and expose information from the user’s view of the Spark UI. While some browsers like recent versions of Chrome and Safari are able to block this type of attack, current versions of Firefox (and possibly others) do not.

Mitigation:

*   2.1.x users should upgrade to 2.1.3 or newer
*   2.2.x users should upgrade to 2.2.2 or newer
*   2.3.x users should upgrade to 2.3.1 or newer

Credit:

*   Spencer Gietzen, Rhino Security Labs

**CVE-2018-1334: Apache Spark™ local privilege escalation vulnerability**

Severity: High

Vendor: The Apache Software Foundation

Versions affected:

*   Spark versions through 2.1.2
*   Spark 2.2.0 to 2.2.1
*   Spark 2.3.0

Description:

In Apache Spark up to and including 2.1.2, 2.2.0 to 2.2.1, and 2.3.0, when using PySpark or SparkR, it’s possible for a different local user to connect to the Spark application and impersonate the user running the Spark application.

Mitigation:

*   1.x, 2.0.x, and 2.1.x users should upgrade to 2.1.3 or newer
*   2.2.x users should upgrade to 2.2.2 or newer
*   2.3.x users should upgrade to 2.3.1 or newer
*   Otherwise, affected users should avoid using PySpark and SparkR in multi-user environments.

Credit:

*   Nehmé Tohmé, Cloudera, Inc.

**CVE-2017-12612 Unsafe deserialization in Apache Spark™ launcher API**

JIRA: SPARK-20922

Severity: Medium

Vendor: The Apache Software Foundation

Versions Affected:

*   Versions of Apache Spark from 1.6.0 until 2.1.1

Description:

In Apache Spark 1.6.0 until 2.1.1, the launcher API performs unsafe deserialization of data received by its socket. This makes applications launched programmatically using the launcher API potentially vulnerable to arbitrary code execution by an attacker with access to any user account on the local machine. It does not affect apps run by spark-submit or spark-shell. The attacker would be able to execute code as the user that ran the Spark application. Users are encouraged to update to version 2.1.2, 2.2.0 or later.

Mitigation:

Update to Apache Spark 2.1.2, 2.2.0 or later.

Credit:

*   Aditya Sharad, Semmle

**CVE-2017-7678 Apache Spark™ XSS web UI MHTML vulnerability**

JIRA: SPARK-20393

Severity: Medium

Vendor: The Apache Software Foundation

Versions Affected:

*   Versions of Apache Spark before 2.1.2, 2.2.0

Description:

It is possible for an attacker to take advantage of a user’s trust in the server to trick them into visiting a link that points to a shared Spark cluster and submits data including MHTML to the Spark master, or history server. This data, which could contain a script, would then be reflected back to the user and could be evaluated and executed by MS Windows-based clients. It is not an attack on Spark itself, but on the user, who may then execute the script inadvertently when viewing elements of the Spark web UIs.

Mitigation:

Update to Apache Spark 2.1.2, 2.2.0 or later.

Example:

Request:

    GET /app/?appId=Content-Type:%20multipart/related;%20boundary=_AppScan%0d%0a--
    _AppScan%0d%0aContent-Location:foo%0d%0aContent-Transfer-
    Encoding:base64%0d%0a%0d%0aPGh0bWw%2bPHNjcmlwdD5hbGVydCgiWFNTIik8L3NjcmlwdD48L2h0bWw%2b%0d%0a
    HTTP/1.1
    

Excerpt from response:

    <div class="row-fluid">No running application with ID Content-Type: multipart/related;
    boundary=_AppScan
    --_AppScan
    Content-Location:foo
    Content-Transfer-Encoding:base64
    PGh0bWw+PHNjcmlwdD5hbGVydCgiWFNTIik8L3NjcmlwdD48L2h0bWw+
    </div>
    

Result: In the above payload the BASE64 data decodes as:

    <html><script>alert("XSS")</script></html>
    

Credit:

*   Mike Kasper, Nicholas Marion
*   IBM z Systems Center for Secure Engineering

CVE-2018-11804: Security | Apache Spark

In mspack/cab.h in libmspack before 0.8alpha and cabextract before 1.8, the CAB block input buffer is one byte too small for the maximal Quantum block, leading to an out-of-bounds write.

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CVE-2018-18584: security - Buffer overflow in cabextract/libmspack (Fwd: New cabextract 1.8 and libmspack 0.8 release)

The function MP4Free() in mp4property.cpp in libmp4v2 2.1.0 internally calls free() on a invalid pointer, raising a SIGABRT signal.

'1629453?cve=title' is not a valid bug number nor an alias to a bug.

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CVE-2018-17236: Invalid Bug ID

The function mp4v2::impl::MP4Track::FinishSdtp() in mp4track.cpp in libmp4v2 2.1.0 mishandles compatibleBrand while processing a crafted mp4 file, which leads to a heap-based buffer over-read, causing denial of service.

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Tag

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