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ELinks: Arbitrary Samba command execution

Content:

1.  Gentoo Linux Security Advisory

Version Information

Advisory Reference GLSA 200701-27 / elinks
Release Date January 30, 2007
Latest Revision January 30, 2007: 01
Impact normal
Exploitable remote
Package Vulnerable versions Unaffected versions Architecture(s)
www-client/elinks < 0.11.2 >= 0.11.2 All supported architectures

Related bugreports: #155358

Synopsis

ELinks does not properly validate "smb://" URLs, making it vulnerable to the execution of arbitrary Samba commands.

2.  Impact Information

Background

ELinks is a text mode web browser.

Description

Teemu Salmela discovered an error in the validation code of "smb://" URLs used by ELinks, the same issue as reported in GLSA 200612-16 concerning Links.

Impact

A remote attacker could entice a user to browse to a specially crafted "smb://" URL and execute arbitrary Samba commands, which would allow the overwriting of arbitrary local files or the upload or download of arbitrary files. This vulnerability can be exploited only if "smbclient" is installed on the victim's computer, which is provided by the "samba" Gentoo package.

3.  Resolution Information

Workaround

There is no known workaround at this time.

Resolution

All ELinks users should upgrade to the latest version:

Code Listing 3.1: Resolution

# emerge --sync
# emerge --ask --oneshot --verbose ">=www-client/elinks-0.11.2"

4.  References



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Page updated January 30, 2007

Summary: This is a Gentoo Linux Security Advisory

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