CVE-2018-0297 Security feature bypass in Cisco Firepower Threat Defense Software

Medium 5.8 Published 17 May 2018 Updated 29 Nov 2024

An unauthenticated remote attacker can bypass SSL Access Control policies by sending crafted out-of-order TCP SSL packets, allowing blocked traffic to pass through the device.

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-2018-0297?

CVE-2018-0297 is a medium-severity vulnerability in Cisco Secure Firewall Threat Defense, published on 17 May 2018. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

A vulnerability in the detection engine of Cisco Firepower Threat Defense software could allow an unauthenticated, remote attacker to bypass a configured Secure Sockets Layer (SSL) Access Control (AC) policy to block SSL traffic. The vulnerability is due to the incorrect handling of TCP SSL packets received out of order. An attacker could exploit this vulnerability by sending a crafted SSL connection through the affected device. A successful exploit could allow the attacker to bypass a configured SSL AC policy to block SSL traffic. Cisco Bug IDs: CSCvg09316.

Weakness: CWE-693

Which versions are affected by CVE-2018-0297?

It affects 1 product.

Products include Cisco Secure Firewall Threat Defense.

How do I fix CVE-2018-0297?

No fix has been published for CVE-2018-0297 yet. Limit exposure of the affected software until one is available.

Is CVE-2018-0297 being exploited?

There is no known exploitation of CVE-2018-0297 in the wild and no public exploit code.

All Cisco Secure Firewall Threat Defense vulnerabilities

Sources

Also known as GHSA-9j44-j9v3-4928.