Vulnerability · Published Aug 1, 2024 · Assigned by VulDB

CVE-2024-7335TOTOLINK EX200 getSaveConfig buffer overflow

High 8.8

In plain English

A high-severity buffer overflow in EX200 from TOTOLINK. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 1.2% (higher than 67% of all known vulnerabilities).

Severity (CVSS 3.1)8.8High

Exploit odds (30 days)1.2%top 32.8% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

A vulnerability classified as critical has been found in TOTOLINK EX200 4.0.3c.7646_B20201211. Affected is 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 launch the attack remotely. The exploit has been disclosed to the public and may be used. VDB-273258 is the identifier assigned to this vulnerability. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.

Affected products (as reported)

Vendor	Product	Versions
TOTOLINK	EX200	4.0.3c.7646_B20201211

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-273258 | TOTOLINK EX200 getSaveConfig buffer overflow vdb-entry, technical-description
VDB-273258 | CTI Indicators (IOB, IOC, IOA) signature, permissions-required
Submit #379313 | TOTOLINK EX200 V4.0.3c.7646_B20201211 buffer overflow third-party-advisory
https://github.com/abcdefg-png/IoT-vulnerable/blob/main/TOTOLINK/EX200/getSaveConfig.md exploit