Vulnerability identifier: #VU20449

Vulnerability risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2019-1900

CWE-ID: CWE-476

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Cisco Integrated Management Controller
Server applications / Remote management servers, RDP, SSH

Vendor: Cisco Systems, Inc

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists in the web server due to insufficient validation of user-supplied input on the web interface. A remote attacker can submit a specially crafted HTTP request to certain endpoints of the affected software and crash the web server.

Physical access to the device may be required for a restart.

Note: This vulnerability affects Cisco UCS C-Series and S-Series Servers in standalone mode if they are running a vulnerable release of Cisco IMC Software.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Cisco Integrated Management Controller: 4.0

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External links
http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190821-imc-dos

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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.