CVE-2018-0423 Cisco RV110W, RV130W, and RV215W Routers Management Interface Buffer Overflow Vulnerability

High 8.1 Published Updated

Unauthenticated remote attackers can trigger a buffer overflow in the web management interface to execute arbitrary code or cause denial of service.

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-2018-0423?

CVE-2018-0423 is a high-severity memory corruption vulnerability in Cisco Rv110w Firmware, published on 5 Oct 2018. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

A vulnerability in the web-based management interface of the Cisco RV110W Wireless-N VPN Firewall, Cisco RV130W Wireless-N Multifunction VPN Router, and Cisco RV215W Wireless-N VPN Router could allow an unauthenticated, remote attacker to cause a denial of service condition or to execute arbitrary code. The vulnerability is due to improper boundary restrictions on user-supplied input in the Guest user feature of the web-based management interface. An attacker could exploit this vulnerability by sending malicious requests to a targeted device, triggering a buffer overflow condition. A successful exploit could allow the attacker to cause the device to stop responding, resulting in a denial of service condition, or could allow the attacker to execute arbitrary code.

Weakness: CWE-119

Which versions are affected by CVE-2018-0423?

It affects 3 products.

Products include Cisco Rv110w Firmware, Cisco Rv130w Firmware, Cisco Rv215w Firmware.

How do I fix CVE-2018-0423?

No fix has been published for CVE-2018-0423 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-2018-0423 being exploited?

There is no known exploitation of CVE-2018-0423 in the wild and no public exploit code.

All Cisco Rv110w Firmware vulnerabilities

Sources

Also known as GHSA-3r77-vxv8-f245.

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