Vulnerability · Published Apr 26, 2024 · Assigned by VulDB

CVE-2024-4236Tenda AX1803 SetDDNSCfg formSetSysToolDDNS stack-based overflow

High 8.8

In plain English

A high-severity stack buffer overflow in AX1803 from Tenda. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 14.9% (higher than 97% of all known vulnerabilities).

Severity (CVSS 3.1)8.8High

Exploit odds (30 days)14.9%top 3.3% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

A vulnerability, which was classified as critical, has been found in Tenda AX1803 1.0.0.1. This issue affects the function formSetSysToolDDNS of the file /goform/SetDDNSCfg. The manipulation of the argument serverName/ddnsUser/ddnsPwd/ddnsDomain leads to stack-based buffer overflow. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used. The associated identifier of this vulnerability is VDB-262127. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.

Affected products (as reported)

Vendor	Product	Versions
Tenda	AX1803	1.0.0.1

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-262127 | Tenda AX1803 SetDDNSCfg formSetSysToolDDNS stack-based overflow vdb-entry, technical-description
VDB-262127 | CTI Indicators (IOB, IOC, IOA) signature, permissions-required
Submit #319230 | Tenda AX1803 V1.0.0.1 Buffer Overflow third-party-advisory
https://github.com/abcdefg-png/IoT-vulnerable/blob/main/Tenda/AX/AX1803/formSetSysToolDDNS.md exploit