CVE-2024-4165: tenda g3_firmware Stack-based Buffer Overflow

Vulnerability summary

CVE-2024-4165 is a critical (CVSS 9.8) Stack-based Buffer Overflow vulnerability in tenda g3_firmware. EPSS estimates a 1.46% chance of exploitation in the next 30 days, higher than 73.3% of scored vulnerabilities. 1 public exploit is recorded.

Timeline

1. 25-04-2024
   PublishedVulnerability first disclosed.
2. 01-08-2024
   Last modifiedVulnerability information updated.

Description

A vulnerability, which was classified as critical, was found in Tenda G3 15.11.0.17(9502). Affected is the function modifyDhcpRule of the file /goform/modifyDhcpRule. The manipulation of the argument bindDhcpIndex leads to stack-based buffer overflow. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used. The identifier of this vulnerability is VDB-261984. 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).
• CWE-787Out-of-bounds WriteThe product writes data past the end, or before the beginning, of the intended buffer.