Vulnerability · Published Jul 28, 2024 · Assigned by VulDB

CVE-2024-7157TOTOLINK A3100R getSaveConfig buffer overflow

High 8.8

In plain English

A high-severity buffer overflow in A3100R from TOTOLINK. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 7.4% (higher than 94% of all known vulnerabilities).

Severity (CVSS 3.1)8.8High

Exploit odds (30 days)7.4%top 5.6% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

A vulnerability was found in TOTOLINK A3100R 4.1.2cu.5050_B20200504. It has been classified as critical. This affects the function getSaveConfig of the file /cgi-bin/cstecgi.cgi?action=save&setting. The manipulation of the argument http_host leads to buffer overflow. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used. The associated identifier of this vulnerability is VDB-272571. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.

Affected products (as reported)

Vendor	Product	Versions
TOTOLINK	A3100R	4.1.2cu.5050_B20200504

Weakness: CWE-120 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References

VDB-272571 | TOTOLINK A3100R getSaveConfig buffer overflow vdb-entry, technical-description
VDB-272571 | CTI Indicators (IOB, IOC, IOA) signature, permissions-required
Submit #377542 | TOTOLINK A3100R V4.1.2cu.5050_B20200504 Buffer Overflow third-party-advisory
https://github.com/abcdefg-png/IoT-vulnerable/blob/main/TOTOLINK/A3100R/getSaveConfig.md exploit