CVE-2009-2936
The Command Line Interface (aka Server CLI or administration interface) in the master process in the reverse proxy server in Varnish…
- Published
- Updated
- Reserved
- Assigned by
- mitre
Description
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.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 2.0 | High7.5 | AV:N/AC:L/Au:N/C:P/I:P/A:P |
- EPSS (exploitation in 30 days)
- 63.8% · top 0.8% of all CVEs (5 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.5.
Weakness
Affected products
n/a
- affected n/a
References (5)
- 20100329 Medium security hole in Varnish reverse proxy (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
- http://www.varnish-cache.org/wiki/CLI (opens in a new tab)x_refsource_MISCx_transferred
- http://www.varnish-cache.org/changeset/3865 (opens in a new tab)x_refsource_MISCx_transferred
- 20100329 Re: [Full-disclosure] Medium security hole in Varnish reverse proxy (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
- FEDORA-2010-6719 (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2009-2936)Record last updated .