A vulnerability was found in Cisco 5000 Series Enterprise Network Compute System and Unified Computing (Virtualization Software) (affected version not known). It has been declared as problematic. Affected by this vulnerability is some unknown functionality of the component BIOS Authentication. The manipulation as part of a Empty Password leads to a improper authentication vulnerability. The CWE definition for the vulnerability is CWE-287. When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

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.

The bug was discovered 06/20/2018. The weakness was shared 06/21/2018 as cisco-sa-20180620-encs-ucs-bio / CSCvh83260 as confirmed advisory (Website). It is possible to read the advisory at tools.cisco.com. This vulnerability is known as CVE-2018-0362 since 11/27/2017. Attacking locally is a requirement. The exploitation doesn't need any form of authentication. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 03/28/2023).

The vulnerability was handled as a non-public zero-day exploit for at least 1 days. During that time the estimated underground price was around $5k-$25k.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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Type

• Virtualization Software

Vendor

• Cisco

Name

• 5000 Series Enterprise Network Compute System
• Unified Computing

License

• commercial

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