webfs "dot dot" directory traversal
| webfs-dotdot-directory-traversal (13309) |  Medium Risk |
Description:
The webfs HTTP server could allow a remote attacker to obtain sensitive information. If virtual hosting is enabled, a remote attacker could send a specially-crafted HTTP request containing "dot dot" (/../) sequences as the hostname to traverse directories and view directory listings and arbitrary files outside of the Web root directory.
Platforms Affected:
- bytesex.org, webfs
- Debian, Debian Linux 3.0
Remedy:
For Debian GNU/Linux:
Upgrade to the latest webfs package, as listed below. Refer to DSA 392-1 for more information. See References.
Debian GNU/Linux 3.0 (woody): 1.17.2 or later
For other distributions:
Contact your vendor for upgrade or patch information.
Consequences:
Obtain Information
References:
- DSA 392-1, webfs - buffer overflows, file and directory exposure at http://archives.neohapsis.com/archives/bugtraq/2003-09/0518.html.
- BID-8724: Webfs HTTP Server Information Disclosure Vulnerability
- CVE-2003-0832: Directory traversal vulnerability in webfs before 1.20 allows remote attackers to read arbitrary files via .. (dot dot) sequences in a Hostname header.
- DSA-392: webfs -- buffer overflows
Reported:
Sep 29, 2003
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For corrections or additions please email xforce@iss.net