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Varnish privilege escalation
Published:31.03.2010
Source:
SecurityVulns ID:10728
Type:local
Threat Level:
5/10
Description:There is a process executing commands with root privileges.
Affected:REDPILLLINPRO : Varnish 2.0
 VARNISH : Varnish 2.1
CVE:CVE-2009-2936 (** 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.")
Original documentdocumentTim Brown, Medium security hole in Varnish reverse proxy (31.03.2010)

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