CVE-2012-3867

Public Exploit

Description

lib/puppet/ssl/certificate_authority.rb in Puppet before 2.6.17 and 2.7.x before 2.7.18, and Puppet Enterprise before 2.5.2, does not properly restrict the characters in the Common Name field of a Certificate Signing Request (CSR), which makes it easier for user-assisted remote attackers to trick administrators into signing a crafted agent certificate via ANSI control sequences.

Category

4.3
CVSS
Severity: Medium
CVSS 2.0 •
EPSS 1.58% Top 20%
Vendor Advisory opensuse.org Vendor Advisory debian.org Vendor Advisory ubuntu.com Vendor Advisory opensuse.org Vendor Advisory puppetlabs.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://lists.opensuse.org/opensuse-security-announce/2012-08/msg00006.html third party advisory vendor advisory
http://www.debian.org/security/2012/dsa-2511 third party advisory vendor advisory
http://www.ubuntu.com/usn/USN-1506-1 third party advisory vendor advisory
http://secunia.com/advisories/50014 third party advisory
http://lists.opensuse.org/opensuse-updates/2012-07/msg00036.html third party advisory vendor advisory
http://puppetlabs.com/security/cve/cve-2012-3867/ vendor advisory
https://github.com/puppetlabs/puppet/commit/dfedaa5fa841ccf335245a748b347b7c7c236640 issue tracking exploit patch
https://github.com/puppetlabs/puppet/commit/f3419620b42080dad3b0be14470b20a972f13c50 issue tracking exploit patch
https://bugzilla.redhat.com/show_bug.cgi?id=839158 issue tracking

Frequently Asked Questions

What is the severity of CVE-2012-3867?
CVE-2012-3867 has been scored as a medium severity vulnerability.
How to fix CVE-2012-3867?
To fix CVE-2012-3867, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2012-3867 being actively exploited in the wild?
It is possible that CVE-2012-3867 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~2% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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