CVE-2023-7095 Totolink A7100RU HTTP POST Request main buffer overflow

Critical 9.8 Published Updated

Remote attackers can trigger a buffer overflow in the login handler of Totolink A7100RU routers, potentially leading to arbitrary code execution.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2023-7095?

CVE-2023-7095 is a critical memory corruption vulnerability in Totolink A7100RU, published on 25 Dec 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

A vulnerability, which was classified as critical, has been found in Totolink A7100RU 7.4cu.2313_B20191024. Affected by this issue is the function main of the file /cgi-bin/cstecgi.cgi?action=login of the component HTTP POST Request Handler. The manipulation of the argument flag leads to buffer overflow. The attack may be launched remotely. The exploit has been disclosed to the public and may be used. VDB-248942 is the identifier assigned to this vulnerability.

Weakness: CWE-120

Which versions are affected by CVE-2023-7095?

It affects 1 product.

Products include Totolink A7100ru Firmware.

How do I fix CVE-2023-7095?

No fix has been published for CVE-2023-7095 yet. Limit exposure of the affected software until one is available.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2023-7095 being exploited?

There is no known exploitation of CVE-2023-7095 in the wild and no public exploit code.

Sources

Also known as GHSA-6q84-3g95-w6vx.

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