As the BSI currently reports, a vulnerability has been identified for Cisco Nexus. You can read a description of the security vulnerability and a list of the affected operating systems and products here.
The Federal Office for Security in Information Technology (BSI) issued a security advisory for Cisco Nexus on February 28, 2024. The security vulnerability affects the CISCO Appliance operating system and the Cisco Nexus product.
The latest manufacturer recommendations regarding updates, workarounds and security patches for this vulnerability can be found here: Cisco Security Advisory (Stand: 28.02.2024).
Cisco Nexus Security Advisory – Risk: Medium
Risk level: 3 (medium)
CVSS Base Score: 5,8
CVSS Temporal Score: 5,1
Remoteangriff: Ja
The Common Vulnerability Scoring System (CVSS) is used to assess the vulnerability of computer systems. The CVSS standard makes it possible to compare potential or actual security vulnerabilities based on various metrics in order to create a priority list for taking countermeasures. The attributes “none”, “low”, “medium”, “high” and “critical” are used to determine the severity levels of a vulnerability. The Base Score evaluates the requirements for an attack (including authentication, complexity, privileges, user interaction) and its consequences. With the temporal score, framework conditions that can change over time are taken into account in the evaluation. According to the CVSS, the threat of the current vulnerability is assessed as “medium” with a base score of 5.8.
Cisco Nexus Bug: Vulnerability allows security measures to be bypassed
The Cisco Nexus series are data center-class modular switching systems.
A remote, anonymous attacker could exploit a vulnerability in Cisco Nexus to bypass security measures.
The vulnerability was classified using the CVE (Common Vulnerabilities and Exposures) referencing system by the individual serial number CVE-2024-20291.
Systems affected by the security gap at a glance
operating system
CISCO Appliance
Products
Cisco Nexus NX-OS Software
General recommendations for dealing with IT vulnerabilities
Users of the affected applications should keep them up to date. When security gaps become known, manufacturers are required to fix them as quickly as possible by developing a patch or a workaround. If new security updates become available, install them promptly. For information, consult the sources listed in the next section. These often contain further information about the latest version of the software in question as well as the availability of security patches or information about workarounds. If you have any further questions or uncertainties, please contact your responsible administrator. IT security managers should regularly check when the IT security warning Affected manufacturers provide a new security update.
Sources of updates, patches and workarounds
Here you will find further links with information about bug reports, security fixes and workarounds.
Cisco Security Advisory vom 2024-02-28 (28.02.2024)
For more information, see:
Version history of this security alert
This is the initial version of this IT security notice for Cisco Nexus. This text will be updated as updates are announced. You can read about changes or additions in this version history.
02/28/2024 – Initial version
+++ Editorial note: This text was generated based on current BSI data and will be updated in a data-driven manner depending on the warning situation. We accept feedback and comments at [email protected]. +++
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Edited by kns
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