CVE-2019-12653 Cisco IOS XE Software Raw Socket Transport Denial of Service Vulnerability

High 8.6 Published 25 Sep 2019 Updated 19 Nov 2024

Remote unauthenticated attackers can cause a device reload and denial of service by sending malicious TCP segments to Cisco IOS XE devices.

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-2019-12653?

CVE-2019-12653 is a high-severity denial of service vulnerability in Cisco Ios Xe, published on 25 Sep 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

A vulnerability in the Raw Socket Transport feature of Cisco IOS XE Software could allow an unauthenticated, remote attacker to trigger a reload of an affected device, resulting in a denial of service (DoS) condition. The vulnerability is due to improper parsing of Raw Socket Transport payloads. An attacker could exploit this vulnerability by establishing a TCP session and then sending a malicious TCP segment via IPv4 to an affected device. This cannot be exploited via IPv6, as the Raw Socket Transport feature does not support IPv6 as a network layer protocol.

Weakness: CWE-20

Which versions are affected by CVE-2019-12653?

It affects 1 product.

Products include Cisco Ios Xe.

How do I fix CVE-2019-12653?

No fix has been published for CVE-2019-12653 yet. Limit exposure of the affected software until one is available.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2019-12653 being exploited?

There is no known exploitation of CVE-2019-12653 in the wild and no public exploit code.

All Cisco Ios Xe vulnerabilities

Sources

Also known as GHSA-p8wr-6h8h-gjc7.