Improper Authentication The advisory has been revoked - it doesn't affect any version of package varnish (opens in a new tab)
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-DEBIANUNSTABLE-VARNISH-316651
- published5 Apr 2010
- disclosed5 Apr 2010
Introduced: 5 Apr 2010
CVE-2009-2936 (opens in a new tab)Amendment
The Debian security team deemed this advisory irrelevant for Debian:unstable.
NVD Description
Note: Versions mentioned in the description apply only to the upstream varnish package and not the varnish package as distributed by Debian.
The Command Line Interface (aka Server CLI or administration interface) in the master process in the reverse proxy server in Varnish before 2.1.0 does not require authentication for commands received through a TCP port, which allows remote attackers to (1) execute arbitrary code via a vcl.inline directive that provides a VCL configuration file containing inline C code; (2) change the ownership of the master process via param.set, stop, and start directives; (3) read the initial line of an arbitrary file via a vcl.load directive; or (4) conduct cross-site request forgery (CSRF) attacks that leverage a victim's location on a trusted network and improper input validation of directives. NOTE: the vendor disputes this report, saying that it is "fundamentally misguided and pointless.
References
- https://security-tracker.debian.org/tracker/CVE-2009-2936
- http://www.securityfocus.com/archive/1/510360/100/0/threaded
- http://www.securityfocus.com/archive/1/510368/100/0/threaded
- http://lists.fedoraproject.org/pipermail/package-announce/2010-April/040359.html
- http://www.varnish-cache.org/changeset/3865
- http://www.varnish-cache.org/wiki/CLI
- https://www.exploit-db.com/exploits/35581