CVE-2018-0253 Command injection in Cisco Secure Access Control System
Unauthenticated remote attackers can execute arbitrary commands on Cisco Secure ACS via crafted AMF messages, requiring immediate patching.
- 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-2018-0253?
CVE-2018-0253 is a critical command injection vulnerability in Cisco Secure Access Control System, published on 2 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 ACS Report component of Cisco Secure Access Control System (ACS) could allow an unauthenticated, remote attacker to execute arbitrary commands on an affected system. Commands executed by the attacker are processed at the targeted user's privilege level. The vulnerability is due to insufficient validation of the Action Message Format (AMF) protocol. An attacker could exploit this vulnerability by sending a crafted AMF message that contains malicious code to a targeted user. A successful exploit could allow the attacker to execute arbitrary commands on the ACS device. This vulnerability affects all releases of Cisco Secure ACS prior to Release 5.8 Patch 7. Cisco Bug IDs: CSCve69037.
Weakness: CWE-20
Which versions are affected by CVE-2018-0253?
It affects 1 product.
Products include Cisco Secure Access Control System.
How do I fix CVE-2018-0253?
No fix has been published for CVE-2018-0253 yet. Limit exposure of the affected software until one is available.
Upgrade, and pass arguments to programs as a list instead of through a shell. More about Command injection.
Is CVE-2018-0253 being exploited?
There is no known exploitation of CVE-2018-0253 in the wild and no public exploit code.
Other vulnerabilities in Cisco Secure Access Control System
Sources
Also known as GHSA-99xc-j93w-f7qr.