CVE-2023-7220 Totolink NR1800X cstecgi.cgi loginAuth stack-based overflow
Remote attackers can trigger a stack-based buffer overflow in the login authentication handler to execute arbitrary code on the router.
- 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-2023-7220?
CVE-2023-7220 is a critical memory corruption vulnerability in Totolink NR1800X, published on 9 Jan 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A vulnerability was found in Totolink NR1800X 9.1.0u.6279_B20210910 and classified as critical. Affected by this issue is the function loginAuth of the file /cgi-bin/cstecgi.cgi. The manipulation of the argument password leads to stack-based buffer overflow. The attack may be launched remotely. The exploit has been disclosed to the public and may be used. VDB-249854 is the identifier assigned to this vulnerability. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.
Weakness: CWE-121
Which versions are affected by CVE-2023-7220?
It affects 1 product.
Products include Totolink Nr1800x Firmware.
How do I fix CVE-2023-7220?
No fix has been published for CVE-2023-7220 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-2023-7220 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-7220 exists.
Other vulnerabilities in Totolink NR1800X
Sources
Also known as GHSA-p9pw-8h32-73j5.