Executive Summary

Summary
Title New webfs packages fix buffer overflows, file and directory exposure
Informations
Name DSA-392 First vendor Publication 2003-09-29
Vendor Debian Last vendor Modification 2003-09-29
Severity (Vendor) N/A Revision 1

Security-Database Scoring CVSS v3

Cvss vector : N/A
Overall CVSS Score NA
Base Score NA Environmental Score NA
impact SubScore NA Temporal Score NA
Exploitabality Sub Score NA
 
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Security-Database Scoring CVSS v2

Cvss vector : (AV:N/AC:L/Au:N/C:P/I:P/A:P)
Cvss Base Score 7.5 Attack Range Network
Cvss Impact Score 6.4 Attack Complexity Low
Cvss Expoit Score 10 Authentication None Required
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Detail

Jens Steube reported two vulnerabilities in webfs, a lightweight HTTP server for static content.

CAN-2003-0832 - When virtual hosting is enabled, a remote client could specify ".." as the hostname in a request, allowing retrieval of directory listings or files above the document root.

CAN-2003-0833 - A long pathname could overflow a buffer allocated on the stack, allowing execution of arbitrary code. In order to exploit this vulnerability, it would be necessary to be able to create directories on the server in a location which could be accessed by the web server. In conjunction with CAN-2003-0832, this could be a world-writable directory such as /var/tmp.

For the current stable distribution (woody) these problems have been fixed in version 1.17.2.

For the unstable distribution (sid) these problems have been fixed in version 1.20.

We recommend that you update your webfs package.

Original Source

Url : http://www.debian.org/security/2003/dsa-392

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 4

OpenVAS Exploits

Date Description
2009-06-23 Name : www too long url
File : nvt/www_too_long_url.nasl
2008-01-17 Name : Debian Security Advisory DSA 392-1 (webfs)
File : nvt/deb_392_1.nasl

Open Source Vulnerability Database (OSVDB)

Id Description
3996 webfs Directory Creation Pathname Handling Remote Overflow

webfs contains a flaw that allows a remote attacker to execute arbitrary code. The issue is due to an overflow condition in "ls.c" that results in an unchecked buffer. If an attacker created a specially crafted request in conjunction with a directory traversal attack, they could potentially execute arbitrary code on the victim machine.
2619 webfs Arbitrary File and Directory Access

webfs contains a flaw that allows a remote attacker to access arbitrary files outside of the web path. The issue is due to the software not properly sanitizing user input, specifically traversal style attacks (../../) supplied via the "hostname" variable(s).

Nessus® Vulnerability Scanner

Date Description
2004-09-29 Name : The remote Debian host is missing a security-related update.
File : debian_DSA-392.nasl - Type : ACT_GATHER_INFO
1999-06-22 Name : The remote web server may be affected by a buffer overflow vulnerability.
File : www_too_long_url.nasl - Type : ACT_DENIAL

Alert History

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Date Informations
2014-02-17 11:32:55
  • Multiple Updates