Denial of service in Cisco UCS Manager Software



Published: 2020-08-27
Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2020-3504
CWE-ID CWE-20
Exploitation vector Local
Public exploit N/A
Vulnerable software
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UCS 6400 Series Fabric Interconnects
Hardware solutions / Routers & switches, VoIP, GSM, etc

Cisco UCS Manager
Client/Desktop applications / Software for system administration

Vendor Cisco Systems, Inc

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Input validation error

EUVDB-ID: #VU46100

Risk: Low

CVSSv3.1: 2.9 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-3504

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to improper handling of CLI command parameters in the local management (local-mgmt) CLI. A local user can execute specific commands on the local-mgmt CLI and perform a denial of service (DoS) attack.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

UCS 6400 Series Fabric Interconnects: All versions

Cisco UCS Manager: 4.0

External links

http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ucs-cli-dos-GQUxCnTe


Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

How the attacker can exploit this vulnerability?

The attacker would have to send a specially crafted request to the affected device in order to exploit this vulnerability.

The attacker would have to login to the system and perform certain actions in order to exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

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



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