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Category:   Application (Generic)  >   Git Vendors:   kernel.org
Git 'ssh://' URL Processing Flaw Lets Remote Users Execute Arbitrary Commands on the Target System
SecurityTracker Alert ID:  1039131
SecurityTracker URL:  http://securitytracker.com/id/1039131
CVE Reference:   CVE-2017-1000117   (Links to External Site)
Date:  Aug 11 2017
Impact:   Execution of arbitrary code via network, User access via network
Fix Available:  Yes  Vendor Confirmed:  Yes  

Description:   A vulnerability was reported in Git. A remote user can execute arbitrary code on the target system.

A remote user (e.g., repository) can return a specially crafted 'ssh://' URL to execute arbitrary shell commands on the target user' system. The code will run with the privileges of the target user.

The vulnerability can be triggered during 'clone' commands.

The original advisory is available at:

http://blog.recurity-labs.com/2017-08-10/scm-vulns

Joern Schneeweisz of Recurity Labs reported this vulnerability.

Impact:   A remote user can execute arbitrary shell commands on the target system.
Solution:   The vendor has issued a fix (2.14.1).

The vendor advisory is available at:

https://raw.githubusercontent.com/git/git/master/Documentation/RelNotes/2.14.1.txt

Vendor URL:  raw.githubusercontent.com/git/git/master/Documentation/RelNotes/2.14.1.txt (Links to External Site)
Cause:   Input validation error
Underlying OS:  Linux (Any)

Message History:   This archive entry has one or more follow-up message(s) listed below.
Aug 15 2017 (Ubuntu Issues Fix) Git 'ssh://' URL Processing Flaw Lets Remote Users Execute Arbitrary Commands on the Target System
Ubuntu has issued a fix for Ubuntu Linux 14.04 LTS, 16.04 LTS, and 17.04.
Aug 17 2017 (Red Hat Issues Fix) Git 'ssh://' URL Processing Flaw Lets Remote Users Execute Arbitrary Commands on the Target System
Red Hat has issued a fix for Red Hat Enterprise Linux 6.
Aug 17 2017 (Red Hat Issues Fix) Git 'ssh://' URL Processing Flaw Lets Remote Users Execute Arbitrary Commands on the Target System
Red Hat has issued a fix for Red Hat Enterprise Linux 7.
Aug 17 2017 (Oracle Issues Fix for Oracle Linux) Git 'ssh://' URL Processing Flaw Lets Remote Users Execute Arbitrary Commands on the Target System
Oracle has issued a fix for Oracle Linux 7.



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