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CVE-2023-25567: Out-of-bounds read when decoding target information

GSS-NTLMSSP, a mechglue plugin for the GSSAPI library that implements NTLM authentication, has an out-of-bounds read when decoding target information prior to version 1.2.0. The length of the `av_pair` is not checked properly for two of the elements which can trigger an out-of-bound read. The out-of-bounds read can be triggered via the main `gss_accept_sec_context` entry point and could cause a denial-of-service if the memory is unmapped. The issue is fixed in version 1.2.0.

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CVE-2023-25565: Release Patched several CVEs reported by GitHub Security Lab · gssapi/gss-ntlmssp

GSS-NTLMSSP is a mechglue plugin for the GSSAPI library that implements NTLM authentication. Prior to version 1.2.0, an incorrect free when decoding target information can trigger a denial of service. The error condition incorrectly assumes the `cb` and `sh` buffers contain a copy of the data that needs to be freed. However, that is not the case. This vulnerability can be triggered via the main `gss_accept_sec_context` entry point. This will likely trigger an assertion failure in `free`, causing a denial-of-service. This issue is fixed in version 1.2.0.

CVE-2023-25563: Out-of-bounds read in multiple decode functions · gssapi/gss-ntlmssp@97c62c6

GSS-NTLMSSP is a mechglue plugin for the GSSAPI library that implements NTLM authentication. Prior to version 1.2.0, multiple out-of-bounds reads when decoding NTLM fields can trigger a denial of service. A 32-bit integer overflow condition can lead to incorrect checks of consistency of length of internal buffers. Although most applications will error out before accepting a singe input buffer of 4GB in length this could theoretically happen. This vulnerability can be triggered via the main `gss_accept_sec_context` entry point if the application allows tokens greater than 4GB in length. This can lead to a large, up to 65KB, out-of-bounds read which could cause a denial-of-service if it reads from unmapped memory. Version 1.2.0 contains a patch for the out-of-bounds reads.

CVE-2023-25566: Memory leak when parsing usernames

GSS-NTLMSSP is a mechglue plugin for the GSSAPI library that implements NTLM authentication. Prior to version 1.2.0, a memory leak can be triggered when parsing usernames which can trigger a denial-of-service. The domain portion of a username may be overridden causing an allocated memory area the size of the domain name to be leaked. An attacker can leak memory via the main `gss_accept_sec_context` entry point, potentially causing a denial-of-service. This issue is fixed in version 1.2.0.

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CVE-2023-23860

SAP NetWeaver AS for ABAP and ABAP Platform - versions 740, 750, 751, 752, 753, 754, 755, 756, 757, 789, 790, allows an unauthenticated attacker to craft a link, which when clicked by an unsuspecting user can be used to redirect a user to a malicious site which could read or modify some sensitive information or expose the victim to a phishing attack.

CVE-2023-23858

Due to insufficient input validation, SAP NetWeaver AS for ABAP and ABAP Platform - versions 740, 750, 751, 752, 753, 754, 755, 756, 757, 789, 790, allows an unauthenticated attacker to send a crafted URL to a user, and by clicking the URL, the tricked user accesses SAP and might be directed with the response to somewhere out-side SAP and enter sensitive data. This could cause a limited impact on confidentiality and integrity of the application.

CVE-2023-23856

In SAP BusinessObjects Business Intelligence (Web Intelligence user interface) - version 430, some calls return json with wrong content type in the header of the response. As a result, a custom application that calls directly the jsp of Web Intelligence DHTML may be vulnerable to XSS attacks. On successful exploitation an attacker can cause a low impact on integrity of the application.

CVE-2023-23855

SAP Solution Manager - version 720, allows an authenticated attacker to redirect users to a malicious site due to insufficient URL validation. A successful attack could lead an attacker to read or modify the information or expose the user to a phishing attack. As a result, it has a low impact to confidentiality, integrity and availability.

CVE-2023-23854

SAP NetWeaver Application Server for ABAP and ABAP Platform - versions 700, 701, 702, 731, 740, 750, 751, 752, does not perform necessary authorization checks for an authenticated user, resulting in escalation of privileges.