Servers and applications
CVE-2008-1891
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,…
- Severity
- Medium 5.0
- Published
- 18 Apr 2008
- Last changed
- 16 Jun 2026
- Added to UpHeron
- 21 Oct 2026
- Exploit chance
- 2.8% in the next 30 daysHigher than 86% of CVEs. EPSS by FIRST, 12 Nov 2026
- Weakness
- Path traversal (CWE-22)
- Attack
- Over the network · No login needed
- Attacker can
- Read some data
- CVSS vector
AV:N/AC:L/Au:N/C:P/I:N/A:N- Sources
- NVD
Description
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.
Affected software
| Software | Affected versions |
|---|---|
RubyServers and applications · cpe:a:ruby-lang:ruby |
|