SB2011030204 - Link following in Ruby
Published: March 2, 2011 Updated: August 11, 2020
Security Bulletin ID
SB2011030204
Severity
High
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Data manipulation
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Link following (CVE-ID: CVE-2011-1004)
The vulnerability allows a remote non-authenticated attacker to #BASIC_IMPACT#.
The FileUtils.remove_entry_secure method in Ruby 1.8.6 through 1.8.6-420, 1.8.7 through 1.8.7-330, 1.8.8dev, 1.9.1 through 1.9.1-430, 1.9.2 through 1.9.2-136, and 1.9.3dev allows local users to delete arbitrary files via a symlink attack.
Remediation
Install update from vendor's website.
References
- http://lists.apple.com/archives/security-announce/2012/May/msg00001.html
- http://lists.fedoraproject.org/pipermail/package-announce/2011-March/054422.html
- http://lists.fedoraproject.org/pipermail/package-announce/2011-March/054436.html
- http://osvdb.org/70958
- http://secunia.com/advisories/43434
- http://secunia.com/advisories/43573
- http://support.apple.com/kb/HT5281
- http://www.mandriva.com/security/advisories?name=MDVSA-2011:097
- http://www.openwall.com/lists/oss-security/2011/02/21/2
- http://www.openwall.com/lists/oss-security/2011/02/21/5
- http://www.redhat.com/support/errata/RHSA-2011-0909.html
- http://www.redhat.com/support/errata/RHSA-2011-0910.html
- http://www.ruby-lang.org/en/news/2011/02/18/fileutils-is-vulnerable-to-symlink-race-attacks/
- http://www.securityfocus.com/bid/46460
- http://www.vupen.com/english/advisories/2011/0539
- https://bugzilla.redhat.com/show_bug.cgi?id=678913