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Category:   Device (Router/Bridge/Hub)  >   Cisco NX-OS Vendors:   Cisco
Cisco NX-OS Flaw Lets Local Users Bypass Software Patch Signature Verification
SecurityTracker Alert ID:  1039930
SecurityTracker URL:
CVE Reference:   CVE-2017-12331   (Links to External Site)
Date:  Nov 30 2017
Impact:   Modification of system information
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 7000, 7700 Series
Description:   A vulnerability was reported in Cisco NX-OS. A local user can bypass security restrictions.

A local user can exploit a signature verification flaw for NX-OS software patches to bypass security controls and load a specially crafted unsigned patch on the target system.

The following Nexus series devices are affected:

7000 Series Switches
7700 Series Switches

The vendor has assigned bug IDs CSCvf16494 and CSCvf23655 to this vulnerability.

Impact:   A local user can bypass software patch signature verification on the target system.
Solution:   The vendor has issued a fix.

The vendor advisory is available at:

Vendor URL: (Links to External Site)
Cause:   Authentication error

Message History:   None.

 Source Message Contents



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