CVE-2008-1891
MEDIUM severity · CVSS 5 · Path traversal
5CVSS MEDIUM
Summary
Directory traversal vulnerability in WEBrick in Ruby 1.8.4 and earlier, 1.8.5 before 1.8.5-p231, 1.8.6 before 1.8.6-p230, 1.8.7 before 1.8.7-p22, and 1.9.0 before 1.9.0-2, when using NTFS or FAT filesystems, allows remote attackers to read arbitrary CGI files via a trailing (1) + (plus), (2) %2b (encoded plus), (3) . (dot), (4) %2e (encoded dot), or (5) %20 (encoded space) character in the URI, possibly related to the WEBrick::HTTPServlet::FileHandler and WEBrick::HTTPServer.new functionality and the :DocumentRoot option.
Impact & exploitability
Attack vectorNetwork
Attack complexityLow
Privileges required—
User interaction—
Confidentiality impact—
Integrity impactNone
Availability impactNone
Exploit probability (EPSS)3%
AV:N/AC:L/Au:N/C:P/I:N/A:N
Affected products we track (1)
Recommendation
Apply the vendor fix in your normal patch cycle. Open any affected product above for its exact safe version.
Additional information
- NVD record
- http://secunia.com/advisories/29794Advisory
- http://aluigi.altervista.org/adv/webrickcgi-adv.txt
- http://lists.opensuse.org/opensuse-security-announce/2008-08/msg00006.html
- http://secunia.com/advisories/30831
- http://secunia.com/advisories/31687
- http://www.mandriva.com/security/advisories?name=MDVSA-2008:140
- http://www.mandriva.com/security/advisories?name=MDVSA-2008:141
- http://www.ruby-lang.org/en/news/2008/06/20/arbitrary-code-execution-vulnerabilities/