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Category:   Application (Generic)  >   Rsync Vendors:   Samba.org
Rsync parse_arguments() Lets Remote Users Bypass Argument Sanitization Restrictions on the Target System
SecurityTracker Alert ID:  1040276
SecurityTracker URL:  http://securitytracker.com/id/1040276
CVE Reference:   CVE-2018-5764   (Links to External Site)
Date:  Jan 25 2018
Impact:   Disclosure of system information, Modification of system information
Fix Available:  Yes  Vendor Confirmed:  Yes  

Description:   A vulnerability was reported in Rsync. A remote user can bypass security controls on the target system.

A remote user can send multiple '--protect-args' values to bypass the argument-sanitization protection mechanism on the target system.

The vulnerability resides in the parse_arguments() function in 'options.c'.

Impact:   A remote user can bypass the argument-sanitization protection mechanism on the target system.
Solution:   The vendor has issued a fix (3.1.3).

The vendor advisory is available at:

https://download.samba.org/pub/rsync/src-previews/rsync-3.1.3pre1-NEWS

Vendor URL:  download.samba.org/pub/rsync/src-previews/rsync-3.1.3pre1-NEWS (Links to External Site)
Cause:   Input validation error
Underlying OS:  Linux (Any), UNIX (Any)

Message History:   This archive entry has one or more follow-up message(s) listed below.
Jan 25 2018 (Ubuntu Issues Fix) Rsync parse_arguments() Lets Remote Users Bypass Argument Sanitization Restrictions on the Target System
Ubuntu has issued a fix for Ubuntu Linux 14.04 LTS, 16.04 LTS, and 17.10.



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