CVE-2022-24355: TP-Link TL-WR940N httpd httpRpmFs Stack-based Buffer Overflow Remote Code Execution Vulnerability
This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of TP-Link TL-WR940N 3.20.1 Build 200316 Rel.34392n (5553) routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the parsing of file name extensions. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-13910.
Other sources
This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of TP-Link TL-WR940N routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the parsing of file name extensions. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of root.
— ZDI
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2022-24355?
The severity of CVE-2022-24355 is high with a severity value of 8.8.
How can CVE-2022-24355 be exploited?
CVE-2022-24355 can be exploited by network-adjacent attackers to execute arbitrary code on TP-Link TL-WR940N routers without authentication.
What software is affected by CVE-2022-24355?
TP-Link TL-WR940N 3.20.1 Build 200316 Rel.34392n (5553) routers are affected by CVE-2022-24355.
Is authentication required to exploit CVE-2022-24355?
No, authentication is not required to exploit CVE-2022-24355.
How can I fix CVE-2022-24355?
To fix CVE-2022-24355, update your TP-Link TL-WR940N router firmware to a version that addresses the vulnerability.