First published: Wed Aug 21 2019(Updated: )
A vulnerability in the web-based management interface of Cisco Integrated Management Controller (IMC) Supervisor, Cisco UCS Director, and Cisco UCS Director Express for Big Data could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition. The vulnerability is due to a missing authentication check in an API call. An attacker who can send a request to an affected system could cause all currently authenticated users to be logged off. Repeated exploitation could cause the inability to maintain a session in the web-based management portal. Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability. This advisory is available at the following link: https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190821-ucs-imc-dos
Credit: This vulnerability was found during the resolution a Cisco TAC support case
Affected Software | Affected Version | How to fix |
---|---|---|
Cisco Integrated Management Controller Supervisor | ||
Cisco UCS Director | ||
Cisco UCS Director Express for Big Data |
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The severity of cisco-sa-20190821-ucs-imc-dos is classified as high due to the potential for an unauthenticated remote attacker to cause a denial of service.
To fix cisco-sa-20190821-ucs-imc-dos, apply the relevant software patches or updates provided by Cisco for the affected products.
The products affected by cisco-sa-20190821-ucs-imc-dos include Cisco Integrated Management Controller (IMC) Supervisor, Cisco UCS Director, and Cisco UCS Director Express for Big Data.
Yes, cisco-sa-20190821-ucs-imc-dos can be exploited remotely by an unauthenticated attacker to cause a denial of service.
There are currently no official workarounds available for cisco-sa-20190821-ucs-imc-dos; immediate patching is recommended.