Vulnerability · Published Apr 25, 2024 · Assigned by VulDB

CVE-2024-4165Tenda G3 modifyDhcpRule stack-based overflow

High 8.8

In plain English

A high-severity stack buffer overflow in G3 from Tenda. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 1.5% (higher than 74% of all known vulnerabilities).

Severity (CVSS 3.1)8.8High

Exploit odds (30 days)1.5%top 26.3% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official 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.

Affected products (as reported)

Vendor	Product	Versions
Tenda	G3	15.11.0.17(9502)

Weakness: CWE-121 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References

VDB-261984 | Tenda G3 modifyDhcpRule stack-based overflow vdb-entry, technical-description
VDB-261984 | CTI Indicators (IOB, IOC, IOA) signature, permissions-required
Submit #318589 | Tenda G3 V15.11.0.17(9502) Buffer Overflow third-party-advisory
https://github.com/abcdefg-png/IoT-vulnerable/blob/main/Tenda/G3/G3V15/modifyDhcpRule.md exploit