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CVE-2011-3870

21
FAUCET Score

CVE-2011-3870 describes a local privilege escalation vulnerability affecting Puppet versions 2.7.x before 2.7.5, 2.6.x before 2.6.11, and 0.25.x. This flaw allows a local attacker to modify the permissions of arbitrary files through a symlink attack targeting the SSH authorized_keys file. With a CVSS score of 6.3 (AV:L/AC:M/Au:N/C:N/I:C/A:C), it indicates a medium-severity vulnerability requiring local access and moderate attack complexity, leading to high impact on integrity and availability. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
2.6.0CPE matchmatch criteria
cpe:2.3:a:puppet:puppet:2.6.0:*:*:*:*:*:*:*
2.6.1CPE matchmatch criteria
cpe:2.3:a:puppet:puppet:2.6.1:*:*:*:*:*:*:*
2.6.2CPE matchmatch criteria
cpe:2.3:a:puppet:puppet:2.6.2:*:*:*:*:*:*:*
2.6.3CPE matchmatch criteria
cpe:2.3:a:puppet:puppet:2.6.3:*:*:*:*:*:*:*
2.6.4CPE matchmatch criteria
cpe:2.3:a:puppet:puppet:2.6.4:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

6.3MEDIUM

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

Confidentiality Impact
NONE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
Access Vector
LOCAL
Access Complexity
MEDIUM
Authentication
NONE
Exploitability Score
3.4
Impact Score
9.2
CvssVersion
2.0

Exploit Intelligence

EPSS Score
0.35%
Probability of exploitation in next 30 days
EPSS Percentile
27.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0035 is in the 36th percentile among its peer group of 1,595 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (4)

fedorapatch availablevia nvd_reference
View patch
rubygemspatch availablevia ghsa
Product: puppetFixed in: 2.6.11
rubygemspatch availablevia ghsa
Product: puppetFixed in: 2.7.5
redhatend of lifevia redhat_api
Product: Red Hat Enterprise MRG 1Fixed in: puppet

Vendor Advisories (2)

rubygemsGHSA-qh3g-27jf-3j54medium

Puppet allows local users to modify the permissions of arbitrary files

May 14, 2022
redhatCVE-2011-3870Important

puppet: SSH authorized_keys symlink attack

Sep 30, 2011

References

groups.google.com / group/puppet-announce/browse_thread/thread/91e3b46d2328a1cb
Patch
lists.fedoraproject.org / pipermail/package-announce/2011-October/068053.html
Patch
lists.fedoraproject.org / pipermail/package-announce/2011-October/068061.html
Patch
lists.fedoraproject.org / pipermail/package-announce/2011-October/068093.html
Patch
secunia.com / advisories/46458
Vendor Advisory
puppet.com / security/cve/cve-2011-3870
debian.org / security/2011/dsa-2314
ubuntu.com / usn/USN-1223-1
ubuntu.com / usn/USN-1223-2