USN-698-3: Nagios vulnerabilities

23 December 2008

nagios2 vulnerabilities

A security issue affects these releases of Ubuntu and its derivatives:

  • Ubuntu 8.04 LTS

Software Description

  • nagios2


It was discovered that Nagios was vulnerable to a Cross-site request forgery (CSRF) vulnerability. If an authenticated nagios user were tricked into clicking a link on a specially crafted web page, an attacker could trigger commands to be processed by Nagios and execute arbitrary programs. This update alters Nagios behaviour by disabling submission of CMD_CHANGE commands. (CVE-2008-5028)

It was discovered that Nagios did not properly parse commands submitted using the web interface. An authenticated user could use a custom form or a browser addon to bypass security restrictions and submit unauthorized commands. (CVE-2008-5027)

Update instructions

The problem can be corrected by updating your system to the following package versions:

Ubuntu 8.04 LTS
nagios2 - 2.11-1ubuntu1.4

To update your system, please follow these instructions:

After a standard system upgrade you need to restart Nagios to effect the necessary changes.