Vulnerability CVE-2009-2936


Published: 2010-04-05   Modified: 2012-02-13

Description:
** DISPUTED ** 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."

See advisories in our WLB2 database:
Topic
Author
Date
High
Varnish reverse proxy 2.0.6 Medium security hole
Tim Brown
07.04.2010

Type:

CWE-287

(Improper Authentication)

Vendor: Varnish.projects.linpro
Product: Varnish 
Version:
2.0.6
2.0.5
2.0.4
2.0.3
2.0.2
2.0.1
2.0
1.1.2
1.1.1
1.1
1.0.4
1.0.3
1.0.2
1.0.1
1.0
0.9.1
0.9

CVSS2 => (AV:N/AC:L/Au:N/C:P/I:P/A:P)

CVSS Base Score
Impact Subscore
Exploitability Subscore
7.5/10
6.4/10
10/10
Exploit range
Attack complexity
Authentication
Remote
Low
No required
Confidentiality impact
Integrity impact
Availability impact
Partial
Partial
Partial

 References:
http://lists.fedoraproject.org/pipermail/package-announce/2010-April/040359.html
http://www.securityfocus.com/archive/1/510360/100/0/threaded
http://www.securityfocus.com/archive/1/510368/100/0/threaded
http://www.varnish-cache.org/changeset/3865
http://www.varnish-cache.org/wiki/CLI

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