oss-sec mailing list archives
Re: CVE request: Nagios (two issues)
From: Andreas Ericsson <ae () op5 se>
Date: Thu, 13 Nov 2008 10:17:29 +0100
Steven M. Christey wrote:
On Tue, 11 Nov 2008, Andreas Ericsson wrote:Name: CVE-2008-5028 Status: Candidate URL: http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-5028 Cross-site request forgery (CSRF) vulnerability in cmd.cgi in (1) Nagios 3.0.5 and (2) op5 Monitor before 4.0.1 allows remote attackers to send commands to the Nagios process, and trigger execution of arbitrary programs by this process, via unspecified HTTP requests.Actually, the CSRF issue is still in Nagios 3.0.5, but can no longer trigger execution of arbitrary programs by the Nagios process. Its impact is thereby reduced to disabling monitoring of the network and similar actions that can validly be requested from the Nagios process through the GUI.What is the relationship between this CSRF issue and the one documented here: http://www.nagios.org/development/history/nagios-3x.php "Security fix for Cross Site Request Forgery (CSRF) bug reported by Tim Starling." Are these the same CSRF issue, or are we talking about a separate problem that would need a separate new CVE?
They're the same problem. The security fix mentioned actually consists of limiting its impact to prevent running arbitrary programs. I'm afraid Ethan got things wrong. It's the authorization check bypass (CVE-2008-5027) that's fixed in 3.0.5. The timeline (in version-perspective) looks something like this: 3.0.4: Vulnerable to both issues, with the combination being that CSRF attacks can trigger arbitrary programs to run. 3.0.5: Vulnerable to CSRF attacks, but CHANGE_ commands (that can be used to trigger arbitrary programs) are completely blocked. Impact is thereby lowered to commands the tricked user is allowed to submit (which can still be rather bad). So in essence, an orthogonal fix lowered the worst-case scenario impact of CVE-2008-5028 in Nagios 3.0.5, but the base issue still remains. Hope that clears things up. -- Andreas Ericsson andreas.ericsson () op5 se OP5 AB www.op5.se Tel: +46 8-230225 Fax: +46 8-230231
Current thread:
- CVE request: Nagios (two issues) Andreas Ericsson (Nov 06)
- Re: CVE request: Nagios (two issues) Steven M. Christey (Nov 10)
- Re: CVE request: Nagios (two issues) Andreas Ericsson (Nov 11)
- Re: CVE request: Nagios (two issues) Steven M. Christey (Nov 12)
- Re: CVE request: Nagios (two issues) Andreas Ericsson (Nov 13)
- Re: CVE request: Nagios (two issues) Andreas Ericsson (Nov 11)
- Re: CVE request: Nagios (two issues) Steven M. Christey (Nov 10)