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CVE-2009-2936

UnknownEPSS 63.82%

Last modified

CVE-2009-2936 is a vulnerability of currently unknown severity. 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.. EPSS estimates a 63.82% chance of exploitation in the next 30 days.

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.

Metrics

EPSS Probability
63.82%

99.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
Varnish.Projects.LinproVarnish0.9
Varnish.Projects.LinproVarnish0.9.1
Varnish.Projects.LinproVarnish1.0
Varnish.Projects.LinproVarnish1.0.1
Varnish.Projects.LinproVarnish1.0.2
Varnish.Projects.LinproVarnish1.0.3
Varnish.Projects.LinproVarnish1.0.4
Varnish.Projects.LinproVarnish1.1
Varnish.Projects.LinproVarnish1.1.1
Varnish.Projects.LinproVarnish1.1.2
Varnish.Projects.LinproVarnish2.0
Varnish.Projects.LinproVarnish2.0.1
Varnish.Projects.LinproVarnish2.0.2
Varnish.Projects.LinproVarnish2.0.3
Varnish.Projects.LinproVarnish2.0.4
Varnish.Projects.LinproVarnish2.0.5
Varnish.Projects.LinproVarnish2.0.6

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2009-2936?
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.
How severe is CVE-2009-2936?
Severity scoring for CVE-2009-2936 is pending analysis. The EPSS model estimates a 63.82% probability of exploitation in the next 30 days.
How do I fix CVE-2009-2936?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST