CVE-2018-0254 Security feature bypass in Cisco Firepower System Software
Unauthenticated attackers can bypass file action policies on Cisco Firepower devices if Intelligent Application Bypass is configured with a drop threshold.
- 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-2018-0254?
CVE-2018-0254 is a medium-severity vulnerability in Cisco Secure Firewall Threat Defense, published on 19 Apr 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 System Software could allow an unauthenticated, remote attacker to bypass configured file action policies if an Intelligent Application Bypass (IAB) with a drop percentage threshold is also configured. The vulnerability is due to incorrect counting of the percentage of dropped traffic. An attacker could exploit this vulnerability by sending network traffic to a targeted device. An exploit could allow the attacker to bypass configured file action policies, and traffic that should be dropped could be allowed into the network. Cisco Bug IDs: CSCvf86435.
Weakness: CWE-693
Which versions are affected by CVE-2018-0254?
It affects 1 product.
Products include Cisco Secure Firewall Threat Defense.
How do I fix CVE-2018-0254?
No fix has been published for CVE-2018-0254 yet. Limit exposure of the affected software until one is available.
Is CVE-2018-0254 being exploited?
There is no known exploitation of CVE-2018-0254 in the wild and no public exploit code.
Other vulnerabilities in Cisco Secure Firewall Threat Defense
- CVE-2024-20412 Hardcoded credentials in Cisco Firepower Threat Defense Software
- CVE-2024-20330 Memory corruption in Cisco Firepower Threat Defense Software
- CVE-2024-20339 Cisco Firepower Threat Defense Software for Firepower 2100 Series TLS Denial of Service Vulnerability
- CVE-2024-20351 Cisco Firepower Threat Defense Software Snort Firewall Denial of Service Vulnerability
- CVE-2023-20083 Denial of service in Cisco Firepower Threat Defense Software
Sources
Also known as GHSA-h2c2-gxr2-8xp4.