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CVE-2008-1891

Publication date 18 April 2008

Last updated 24 July 2024

Ubuntu priority

Negligible

Why this priority?

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.

Read the notes from the security team

Status

Package Ubuntu Release Status
ruby1.8 8.04 LTS hardy Ignored
7.10 gutsy Ignored
7.04 feisty Ignored
6.06 LTS dapper Ignored
ruby1.9 8.04 LTS hardy Ignored
7.10 gutsy Ignored
7.04 feisty Ignored
6.06 LTS dapper Ignored

Notes

jdstrand

this is only a problem if serving from a windows filesystem. This configuration is known to be broken. From changelog addition in svn r16454: Note: NTFS/FAT filesystem should not be published by the platforms other than Windows. Pathname interpretation (including short filename) is less than perfect.