[ GLSA 200612-16 ] Links: Arbitrary Samba command execution

[GLSA]

Gentoo Linux Security Advisory

Title: Links: Arbitrary Samba command execution (GLSA 200612-16)
Severity: normal
Exploitable: remote
Date: December 14, 2006
Bug(s): #157028
ID: 200612-16

Synopsis

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

Background

Links is a web browser running in both graphics and text modes.

Affected Packages

Package: www-client/links
Vulnerable: < 2.1_pre26
Unaffected: >= 2.1_pre26
Architectures: All supported architectures


Description

Teemu Salmela discovered that Links does not properly validate "smb://" URLs when it runs smbclient commands.

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 the 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.

Workaround

There is no known workaround at this time.

Resolution

All Links users should upgrade to the latest version: