Linux Security
Linux Security
Linux Security

Debian: DSA-3062-1: wget security update

Date 02 Nov 2014
157
Posted By LinuxSecurity Advisories
HD Moore of Rapid7 discovered a symlink attack in Wget, a command-line utility to retrieve files via HTTP, HTTPS, and FTP. The vulnerability allows to create arbitrary files on the user's system when Wget runs in recursive mode against a malicious FTP server. Arbitrary file creation
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Debian Security Advisory DSA-3062-1                   This email address is being protected from spambots. You need JavaScript enabled to view it.
https://www.debian.org/security/                             Luciano Bello
November 01, 2014                      https://www.debian.org/security/faq
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Package        : wget
CVE ID         : CVE-2014-4877
Debian Bug     : 766981

HD Moore of Rapid7 discovered a symlink attack in Wget, a command-line 
utility to retrieve files via HTTP, HTTPS, and FTP. The vulnerability 
allows to create arbitrary files on the user's system when Wget runs in 
recursive mode against a malicious FTP server. Arbitrary file creation 
may override content of user's files or permit remote code execution with 
the user privilege. 

This update changes the default setting in Wget such that it no longer 
creates local symbolic links, but rather traverses them and retrieves the 
pointed-to file in such a retrieval.

For the stable distribution (wheezy), this problem has been fixed in
version 1.13.4-3+deb7u2.

For the unstable distribution (sid), this problem has been fixed in
version 1.16-1.

We recommend that you upgrade your wget packages.

Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://www.debian.org/security/

Mailing list: This email address is being protected from spambots. You need JavaScript enabled to view it.

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