Vulnerability identifier: #VU57595

Vulnerability risk: Medium

CVSSv3.1: 4.6 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-34736

CWE-ID: CWE-20

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Cisco Integrated Management Controller
Server applications / Remote management servers, RDP, SSH
UCS C-Series Rack Servers in standalone mode
Other software / Other software solutions
UCS S-Series Storage Servers in standalone mode
Other software / Other software solutions

Vendor: Cisco Systems, Inc

Description

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

The vulnerability exists due to insufficient validation of user-supplied input in the web-based management interface. A remote attacker can pass specially crafted input to the application and perform a denial of service (DoS) attack.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Cisco Integrated Management Controller: All versions

UCS C-Series Rack Servers in standalone mode: 4.1 - 4.2

UCS S-Series Storage Servers in standalone mode: 4.1

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

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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.