Security restrictions bypass in Nexus 7700 Series Switches and Nexus 7000 Series Switches - CVE-2017-12333

 

Security restrictions bypass in Nexus 7700 Series Switches and Nexus 7000 Series Switches - CVE-2017-12333

Published: December 1, 2017


Vulnerability identifier: #VU9480
CSH Severity: Low
CVSS v4: 8.4 [CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2017-12333
CWE-ID: CWE-264
Exploitation vector: Local access
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a local attacker to bypass security restrictions on the target system.

The weakness exists in Cisco NX-OS System Software due to insufficient NX-OS signature verification for software images. A local attacker with knowledge of valid administrator credentials can bypass signature verification and load a crafted, unsigned software image.

Affected software

Nexus 7700 Series Switches
Nexus 7000 Series Switches

How to mitigate CVE-2017-12333

Install update from vendor's website.


External References

Related Security Bulletins