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Bug 1333378 - (CVE-2016-3728) CVE-2016-3728 foreman: Missing input validation in Smart Proxy allows RCE via TFTP file variant parameter
CVE-2016-3728 foreman: Missing input validation in Smart Proxy allows RCE via...
Status: CLOSED ERRATA
Product: Security Response
Classification: Other
Component: vulnerability (Show other bugs)
unspecified
All Linux
medium Severity medium
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Assigned To: Red Hat Product Security
impact=moderate,public=20160505,repor...
: Security
Depends On: 1333405 1333408
Blocks: 1333386
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Reported: 2016-05-05 08:00 EDT by Adam Mariš
Modified: 2016-09-20 20:26 EDT (History)
23 users (show)

See Also:
Fixed In Version:
Doc Type: Bug Fix
Doc Text:
It was found that the “variant” parameter in the TFTP API of Foreman was passed to the eval() function. An attacker could possibly use this flaw to execute arbitrary code with the privileges of the Foreman user.
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Clone Of:
: 1333405 1333408 (view as bug list)
Environment:
Last Closed: 2016-09-19 16:26:57 EDT
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Regression: ---
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CRM:
Verified Versions:
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RHEL 7.3 requirements from Atomic Host:
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Description Adam Mariš 2016-05-05 08:00:41 EDT
It was reported that TFTP API module in Smart Proxy is vulnerable to remote code execution via "variant" parameter, which is used to instantiate an implementation class using eval() on the user supplemented input.

Service is usually restricted in a default Foreman installation by requiring client SSL certificates and enforcing access to a configured list of trusted hosts, but may also be configured openly. The TFTP module is enabled in default installation, but may be disabled. Affected versions are 0.2 and higher.

Upstream bug:

http://projects.theforeman.org/issues/14931
Comment 1 Adam Mariš 2016-05-05 08:01:00 EDT
Acknowledgments:

Name: the Foreman project
Upstream: Lukas Zapletal (Red Hat)
Comment 3 Kurt Seifried 2016-09-19 16:26:57 EDT
This issue has been addressed in:

Satellite 6.2

In RHBA-2016:1501

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