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Category:   Application (Generic)  >   wget Vendors:   GNU [multiple authors]
wget Default FTP Retrieval Method Lets Remote Users Create Arbitrary Files and Directories
SecurityTracker Alert ID:  1031121
SecurityTracker URL:  http://securitytracker.com/id/1031121
CVE Reference:   CVE-2014-4877   (Links to External Site)
Date:  Oct 28 2014
Impact:   Modification of system information, Modification of user information
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): prior to 1.16
Description:   A vulnerability was reported in wget. A remote user can cause arbitrary files, directories, and symlinks to be created on the target user's system.

A remote user can create a specially crafted directory that, when recursively retrieved via FTP, will create arbitrary files, directories, or symbolic links on the target user's system with the permissions specified on the remote system.

HD Moore of Rapid7 reported this vulnerability.

Impact:   A remote user can cause arbitrary files, directories, and symlinks to be created on the target user's system.
Solution:   The vendor has issued a fix (1.16).

A source code fix is also available at:

http://git.savannah.gnu.org/cgit/wget.git/commit/?id=18b0979357ed7dc4e11d4f2b1d7e0f5932d82aa7

The vendor's advisory is available at:

http://lists.gnu.org/archive/html/bug-wget/2014-10/msg00150.html

Vendor URL:  lists.gnu.org/archive/html/bug-wget/2014-10/msg00150.html (Links to External Site)
Cause:   Access control error
Underlying OS:  Linux (Any), UNIX (Any)

Message History:   This archive entry has one or more follow-up message(s) listed below.
Oct 31 2014 (Ubuntu Issues Fix) wget Default FTP Retrieval Method Lets Remote Users Create Arbitrary Files and Directories
Ubuntu has issued a fix for Ubuntu 10.04 LTS, 12.04 LTS, 14.04 LTS, and 14.10.
Oct 31 2014 (Red Hat Issues Fix) wget Default FTP Retrieval Method Lets Remote Users Create Arbitrary Files and Directories
Red Hat has issued a fix for Red Hat Enterprise Linux 6 and 7.
Dec 3 2014 (Red Hat Issues Fix) wget Default FTP Retrieval Method Lets Remote Users Create Arbitrary Files and Directories
Red Hat has issued a fix for Red Hat Enterprise Linux 6.5.



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