CVE-2009-2936 — HIGH (7.5) — White Hats Nepal

Vulnerability 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.

CVSS Score

7.5

HIGH

AV:N/AC:L/Au:N/C:P/I:P/A:P

Confidentiality

PARTIAL

Integrity

PARTIAL

Availability

PARTIAL

Affected Products

Vendor	Product	Versions
Varnish.Projects.Linpro	Varnish	0.9

Related Weaknesses (CWE)

CWE-287

References

FAQ

What is CVE-2009-2936?

CVE-2009-2936 is a vulnerability with a CVSS score of 7.5 (HIGH). 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 ...

How severe is CVE-2009-2936?

CVE-2009-2936 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2009-2936?

Check the references section above for vendor advisories and patch information. Affected products include: Varnish.Projects.Linpro Varnish.