Vulnerability identifier: #VU20430

Vulnerability risk: Medium

CVSSv3.1: 6.7 [CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:F/RL:O/RC:C]

CVE-ID: CVE-2019-1936

CWE-ID: CWE-20

Exploitation vector: Network

Exploit availability: Yes

Vulnerable software:
Cisco UCS Director Express for Big Data
Server applications / Other server solutions
Cisco UCS Director
Server applications / Other server solutions
Cisco Integrated Management Controller Supervisor
Web applications / Remote management & hosting panels

Vendor: Cisco Systems, Inc

Description

The vulnerability allows a remote attacker to execute arbitrary commands on the target system.

The vulnerability exists due to insufficient validation of user-supplied input by the web-based management interface. A remote authenticated administrator can log in to the web-based management interface, send a malicious request to a certain part of the interface and execute arbitrary commands on the underlying Linux shell.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Cisco UCS Director Express for Big Data: 3.0.0.0 - 3.7.1.0

Cisco UCS Director: 6.0.0.0 - 6.7.1.0

Cisco Integrated Management Controller Supervisor: 2.1 - 2.2.0.6

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External links
http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190821-imcs-ucs-cmdinj

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated privileged user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability. However, a fully functional exploit for this vulnerability is available.