Improper Authentication in Cisco UCS Director Express for Big Data

1) Improper Authentication

EUVDB-ID: #VU20378

Risk: High

CVSSv4.0: 8.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2019-1938

CWE-ID: CWE-287 - Improper Authentication

Exploit availability: No

Description

The vulnerability allows a remote attacker to bypass authentication process.

The vulnerability exists due to improper authentication request handling in the web-based management interface. A remote attacker can send a specially crafted HTTP request, bypass authentication process and gain unauthorized access to the application.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Cisco UCS Director Express for Big Data: 3.7.0.0 - 3.7.1.0

Cisco UCS Director: 6.7.0.0 - 6.7.1.0

CPE2.3

• cpe:2.3:a:cisco_systems:cisco_ucs_director_express_for_big_data:3.7.0.0:*:*:*:*:*:*:*
• cpe:2.3:a:cisco_systems:cisco_ucs_director_express_for_big_data:3.7.1.0:*:*:*:*:*:*:*
• cpe:2.3:a:cisco_systems:cisco_ucs_director:6.7.0.0:*:*:*:*:*:*:*
• cpe:2.3:a:cisco_systems:cisco_ucs_director:6.7.1.0:*:*:*:*:*:*:*

External links

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190821-ucsd-authbypass

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.