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CVE-2011-1004

20
FAUCET Score

CVE-2011-1004 describes a local privilege escalation vulnerability in the FileUtils.remove_entry_secure method across multiple Ruby versions (1.8.6 to 1.9.3dev). An attacker can exploit this flaw via a symlink attack to delete arbitrary files on the system. With a CVSS score of 6.3, this vulnerability has a medium attack complexity and can lead to significant integrity and availability impacts. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
1.8.6CPE matchmatch criteria
cpe:2.3:a:ruby-lang:ruby:1.8.6:*:*:*:*:*:*:*
1.8.7CPE matchmatch criteria
cpe:2.3:a:ruby-lang:ruby:1.8.7:*:*:*:*:*:*:*
1.8.8CPE matchmatch criteria
cpe:2.3:a:ruby-lang:ruby:1.8.8:dev:*:*:*:*:*:*
1.9.1CPE matchmatch criteria
cpe:2.3:a:ruby-lang:ruby:1.9.1:*:*:*:*:*:*:*
1.9.2CPE matchmatch criteria
cpe:2.3:a:ruby-lang:ruby:1.9.2:*:*:*:*:*:*:*

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
0.39%
Probability of exploitation in next 30 days
EPSS Percentile
31.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0039 is in the 50th 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 (3)

redhatpatch availablevia nvd_reference
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: ruby-0:1.8.5-19.el5_6.1
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: ruby-0:1.8.7.299-7.el6_1.1
View patch

Vendor Advisories (1)

redhatCVE-2011-1004Moderate

Ruby: Symlink race condition by removing directory trees in fileutils module

Feb 18, 2011

References

lists.apple.com / archives/security-announce/2012/May/msg00001.html
lists.fedoraproject.org / pipermail/package-announce/2011-March/054422.html
lists.fedoraproject.org / pipermail/package-announce/2011-March/054436.html
osvdb.org / 70958
bugzilla.redhat.com / show_bug.cgi
Patch
secunia.com / advisories/43434
Vendor Advisory
secunia.com / advisories/43573
support.apple.com / kb/HT5281
mandriva.com / security/advisories
openwall.com / lists/oss-security/2011/02/21/2
Patch
openwall.com / lists/oss-security/2011/02/21/5
Patch
redhat.com / support/errata/RHSA-2011-0909.html
redhat.com / support/errata/RHSA-2011-0910.html
ruby-lang.org / en/news/2011/02/18/fileutils-is-vulnerable-to-symlink-race-attacks
PatchVendor Advisory
securityfocus.com / bid/46460
vupen.com / english/advisories/2011/0539