Squid cachemgr.cgi script can be used to remotely proxy portscans
| http-cgi-cachemgr (2385) |  Medium Risk |
Description:
The cachemgr.cgi script is not installed by default into a system's Web server CGI directory. However, under some systems (including Red Hat Linux), the cachemgr.cgi script can be found in this directory with no access controls in place. This script can be used by a remote attacker to connect to arbitrary hosts and ports which could be used to "proxy" portscans through vulnerable systems.
Platforms Affected:
- Debian, Debian Linux 3.0
- RedHat, Enterprise Linux 2.1 AS
- RedHat, Enterprise Linux 2.1 ES
- RedHat, Enterprise Linux 3 AS
- RedHat, Enterprise Linux 3 WS
- RedHat, Enterprise Linux 3 ES
- RedHat, Enterprise Linux 3 Desktop
- RedHat, Enterprise Linux 4 Desktop
- RedHat, Enterprise Linux 4 AS
- RedHat, Enterprise Linux 4 WS
- RedHat, Enterprise Linux 4 ES
- RedHat, Linux 6.0
- RedHat, Linux Advanced Workstation 2.1 Itanium
- Squid-Cache, Squid
Remedy:
Remove the cachemgr.cgi script from your server's CGI-BIN directory.
For Debian GNU/Linux 3.0 (alias woody):
Upgrade to the latest squid package (2.4.6-2woody4 or later), as listed in DSA-576-1. See References.
For Red Hat Linux:
Refer to RHSA-2005:415-16 or RHSA-2005:489-05 for patch, upgrade, or suggested workaround information. See References.
For other distributions:
Contact your vendor for upgrade or patch information.
Consequences:
Gain Access
References:
- BugTraq Mailing List, Fri, 23 Jul 1999 16:36:32 -0700, Redhat 6.0 cachemgr.cgi lameness at http://archives.neohapsis.com/archives/bugtraq/1999-q3/0194.html.
- RHSA-1999:025-01, Potential misuse of squid cachemgr.cgi at http://rhn.redhat.com/errata/RHSA-1999-025.html.
- BID-2059: Squid cachemgr.cgi Unauthorized Connection Vulnerability
- CVE-1999-0710: The Squid package in Red Hat Linux 5.2 and 6.0, and other distributions, installs cachemgr.cgi in a public web directory, which allows remote attackers to use it as an intermediary to connect to other systems.
- DSA-576: squid -- several vulnerabilities
- RHSA-2005-415: squid security update
- RHSA-2005-489: squid security update
Reported:
Jul 23, 1999
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