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Category:   Application (Database)  >   MySQL Vendors:   MySQL.com, Oracle
(Oracle Issues Fix for Oracle Linux) MySQL General Query Logging Function Lets Remote Authenticated Users Modify the 'my.cnf' File to Gain Elevated Privileges
SecurityTracker Alert ID:  1037702
SecurityTracker URL:  http://securitytracker.com/id/1037702
CVE Reference:   CVE-2016-6662   (Links to External Site)
Date:  Jan 26 2017
Impact:   Execution of arbitrary code via network, Modification of system information, Modification of user information, Root access via network, User access via network
Fix Available:  Yes  Vendor Confirmed:  Yes  Exploit Included:  Yes  
Version(s): 5.5.52, 5.6.33, 5.7.15; and prior versions
Description:   A vulnerability was reported in MySQL. A remote authenticated user can gain elevated privileges.

A remote authenticated user with SELECT/FILE permissions can exploit a flaw in the MySQL general query logging function to modify or create a 'my.cnf' file and cause arbitrary code to be executed with elevated privileges on the target system when the MySQL service is subsequently restarted.

The vendor was notified on July 29, 2016.

The original advisory and demonstration exploit code is available at:

http://legalhackers.com/advisories/MySQL-Exploit-Remote-Root-Code-Execution-Privesc-CVE-2016-6662.html

Dawid Golunski of legalhackers.com reported this vulnerability.

Impact:   A remote authenticated user with SELECT/FILE permissions can gain elevated privileges on the target system.
Solution:   Oracle has issued a fix.

The Oracle Linux advisory is available at:

http://linux.oracle.com/errata/ELSA-2017-0184.html

Vendor URL:  linux.oracle.com/errata/ELSA-2017-0184.html (Links to External Site)
Cause:   Access control error
Underlying OS:  Linux (Oracle)
Underlying OS Comments:  6

Message History:   This archive entry is a follow-up to the message listed below.
Sep 12 2016 MySQL General Query Logging Function Lets Remote Authenticated Users Modify the 'my.cnf' File to Gain Elevated Privileges



 Source Message Contents

Subject:  [El-errata] ELSA-2017-0184 Important: Oracle Linux 6 mysql security update

Oracle Linux Security Advisory ELSA-2017-0184

http://linux.oracle.com/errata/ELSA-2017-0184.html

The following updated rpms for Oracle Linux 6 have been uploaded to the 
Unbreakable Linux Network:

i386:
mysql-5.1.73-8.0.1.el6_8.i686.rpm
mysql-bench-5.1.73-8.0.1.el6_8.i686.rpm
mysql-devel-5.1.73-8.0.1.el6_8.i686.rpm
mysql-embedded-5.1.73-8.0.1.el6_8.i686.rpm
mysql-embedded-devel-5.1.73-8.0.1.el6_8.i686.rpm
mysql-libs-5.1.73-8.0.1.el6_8.i686.rpm
mysql-server-5.1.73-8.0.1.el6_8.i686.rpm
mysql-test-5.1.73-8.0.1.el6_8.i686.rpm

x86_64:
mysql-5.1.73-8.0.1.el6_8.x86_64.rpm
mysql-bench-5.1.73-8.0.1.el6_8.x86_64.rpm
mysql-devel-5.1.73-8.0.1.el6_8.i686.rpm
mysql-devel-5.1.73-8.0.1.el6_8.x86_64.rpm
mysql-embedded-5.1.73-8.0.1.el6_8.i686.rpm
mysql-embedded-5.1.73-8.0.1.el6_8.x86_64.rpm
mysql-embedded-devel-5.1.73-8.0.1.el6_8.i686.rpm
mysql-embedded-devel-5.1.73-8.0.1.el6_8.x86_64.rpm
mysql-libs-5.1.73-8.0.1.el6_8.i686.rpm
mysql-libs-5.1.73-8.0.1.el6_8.x86_64.rpm
mysql-server-5.1.73-8.0.1.el6_8.x86_64.rpm
mysql-test-5.1.73-8.0.1.el6_8.x86_64.rpm


SRPMS:
http://oss.oracle.com/ol6/SRPMS-updates/mysql-5.1.73-8.0.1.el6_8.src.rpm



Description of changes:

[5.1.73-8.0.1]
- fix date in the test

[5.1.73-8]
- Fix CVE-2016-6662 and CVE-2016-6663
   Resolves: #1397309


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