Barracuda Spam Firewall preview_email.cgi command execution

barracuda-previewemail-command-execution (28234) The risk level is classified as HighHigh Risk

Description:

Barracuda Spam Firewall could allow an attacker to execute certain commands caused by improper validation by the preview_email.cgi script. An attacker with a valid account could send a specially-crafted request to the preview_email.cgi containing a pipe "|" character and sudo commands to execute certain commands and scripts on the system with root level privileges.

Platforms Affected:

  • Barracuda Networks, Barracuda Spam Firewall 3.3.01.001-3.3.02.05

Remedy:

Upgrade to the latest version of Barracuda Spam Firewall firmware (3.3.0.54 or later), available from the Barracuda Web site. See References.

Consequences:

Gain Access

References:

  • Barracuda Networks Web site, Barracuda Networks - Spam Filter / Spam Firewall / Spam Appliance Specialists at http://www.barracudanetworks.com/products/.
  • Full-Disclosure Mailing List, Fri Aug 04 2006 - 05:22:53 CDT , Barracuda Spam Firewall: Administrator Level Remote Command Execution [ID-20060804-01] at http://archives.neohapsis.com/archives/fulldisclosure/2006-08/0110.html.
  • BID-19276: Barracuda Networks Spam Firewall Multiple Vulnerabilities
  • CVE-2006-4081: preview_email.cgi in Barracuda Spam Firewall (BSF) 3.3.01.001 through 3.3.03.053 allows remote attackers to execute commands via shell metacharacters (| pipe symbol) in the file parameter. NOTE: the attack can be extended to arbitrary commands by the presence of CVE-2006-4000.
  • SA21258: Barracuda Spam Firewall Shell Command Injection and Default Account

Reported:

Aug 04, 2006

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