CVE-2024-0535: Tenda PA6 httpd portmap cgiPortMapAdd stack-based overflow

Vulnerability summary

CVE-2024-0535 is a critical (CVSS 9.8) Stack-based Buffer Overflow vulnerability in tenda pa6. EPSS estimates a 0.98% chance of exploitation in the next 30 days, higher than 61.8% of scored vulnerabilities. 1 public exploit is recorded.

Timeline

1. 15-01-2024
   PublishedVulnerability first disclosed.
2. 14-11-2024
   Last modifiedVulnerability information updated.

Description

A vulnerability classified as critical was found in Tenda PA6 1.0.1.21. Affected by this vulnerability is the function cgiPortMapAdd of the file /portmap of the component httpd. The manipulation of the argument groupName leads to stack-based buffer overflow. The attack can be launched remotely. The exploit has been disclosed to the public and may be used. The identifier VDB-250705 was assigned to this vulnerability. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.

• CWE-121Stack-based Buffer OverflowA stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function).