CVE-2018-0362 Auth bypass in Cisco 5000 Series Enterprise Network Compute System and Cisco UCS E-Series Servers unknown

Medium 4.3 Published Updated

An unauthenticated local attacker can bypass BIOS authentication by submitting an empty password, gaining access to restricted user-level BIOS commands.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Local or same network only
Victim action needed
Not needed
Fix
None listed

What is CVE-2018-0362?

CVE-2018-0362 is a medium-severity authentication bypass vulnerability in Cisco 5000 Series Enterprise Network Compute System and Cisco UCS E-Series Servers unknown, published on 21 Jun 2018. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

A vulnerability in BIOS authentication management of Cisco 5000 Series Enterprise Network Compute System and Cisco Unified Computing (UCS) E-Series Servers could allow an unauthenticated, local attacker to bypass the BIOS authentication and execute actions as an unprivileged user. The vulnerability is due to improper security restrictions that are imposed by the affected system. An attacker could exploit this vulnerability by submitting an empty password value to an affected device's BIOS authentication prompt. An exploit could allow the attacker to have access to a restricted set of user-level BIOS commands. Cisco Bug IDs: CSCvh83260.

Weakness: CWE-287

Which versions are affected by CVE-2018-0362?

It affects 21 products.

Products include Cisco 5100 Enterprise Network Compute System Firmware, Cisco 5400 Enterprise Network Compute System Firmware, Cisco Ucs-E1120d-K9 Firmware, Cisco Ucs-E1120d-M3 Firmware, Cisco Ucs-E140d-K9 Firmware, Cisco Ucs-E140d-M1 Firmware and 15 more.

How do I fix CVE-2018-0362?

No fix has been published for CVE-2018-0362 yet. Limit exposure of the affected software until one is available.

Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.

Is CVE-2018-0362 being exploited?

There is no known exploitation of CVE-2018-0362 in the wild and no public exploit code.

Sources

Also known as GHSA-xq97-24qj-jwq2.

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