SCAN: Cachemgr.cgi Access
This signature detects access to the squid cachemgr.cgi script. Attackers can use this script as a denial-of-service (DoS) attack tool.
Extended Description
The 'cachemgr.cgi' module is a management interface for the Squid proxy service. It was installed by default in '/cgi-bin' by Red Hat Linux 5.2 and 6.0 installed with Squid. This script prompts for a host and port, which it then tries to connect to. If a webserver such as Apache is running, this can be used to connect to arbitrary hosts and ports, allowing for potential use as an intermediary in denial-of-service attacks, proxied port scans, etc. Interpreting the output of the script can allow the attacker to determine whether or not a connection was established.
Affected Products
National_science_foundation squid_web_proxy
srx-branch-12.3
srx-19.3
srx-branch-19.3
vsrx3bsd-19.2
srx-branch-19.4
vsrx-19.4
mx-12.3
mx-19.4
vmx-19.4
mx-19.3
vsrx3bsd-19.4
srx-19.4
vsrx-12.3
vmx-19.3
vsrx-19.2
srx-12.3
Red_hat
Sgi
Debian
National_science_foundation
7.5