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Category:   OS (UNIX)  >   Solaris Vendors:   Sun
(Oracle Issues Fix for Solaris) GNU GRUB Authentication Bug Lets Local Users Bypass Authentication and Gain Elevated Privileges
SecurityTracker Alert ID:  1034719
SecurityTracker URL:  http://securitytracker.com/id/1034719
CVE Reference:   CVE-2015-8370   (Links to External Site)
Date:  Jan 19 2016
Impact:   Root access via local system
Fix Available:  Yes  Vendor Confirmed:  Yes  Exploit Included:  Yes  
Version(s): Solaris 11
Description:   A vulnerability was reported in GNU GRUB. A local user can obtain elevated privileges on the target system. Solaris is affected.

A local user can bypass authentication and gain full control of the target system.

The vulnerability resides in 'grub-core/lib/crypto.c' and 'grub-core/normal/auth.c'.

The original advisory is available at:

http://hmarco.org/bugs/CVE-2015-8370-Grub2-authentication-bypass.html

Hector Marco and Ismael Ripoll reported this vulnerability.

Impact:   A local user can obtain full control of the target system.
Solution:   Oracle has issued a fix for CVE-2015-8370 for Solaris as part of the January 2016 Oracle Critical Patch Update.

The Oracle advisory is available at:

http://www.oracle.com/technetwork/topics/security/cpujan2016-2367955.html.

Vendor URL:  www.oracle.com/technetwork/topics/security/cpujan2016-2367955.html (Links to External Site)
Cause:   Boundary error

Message History:   This archive entry is a follow-up to the message listed below.
Dec 15 2015 GNU GRUB Authentication Bug Lets Local Users Bypass Authentication and Gain Elevated Privileges



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