January 25, 2024 at 09:41AM
Cisco has issued a security bulletin warning of a critical remote code execution vulnerability, tracked as CVE-2024-20253, affecting several of its Unified Communications Manager and Contact Center Solutions products. The vulnerability could allow remote attackers to execute arbitrary code. The vendor recommends applying available security updates and implementing access control lists as a mitigation strategy.
Based on the meeting notes, here are the key takeaways:
1. Cisco’s Unified Communications Manager (CM) and Contact Center Solutions products are vulnerable to a critical severity remote code execution security issue.
2. The vulnerability, tracked as CVE-2024-20253, could allow an unauthenticated, remote attacker to execute arbitrary code on an affected device.
3. The affected Cisco products in their default configurations include Packaged Contact Center Enterprise (PCCE), Unified Communications Manager (Unified CM), Unified Communications Manager IM & Presence Service (Unified CM IM&P), Unified Contact Center Enterprise (UCCE), Unified Contact Center Express (UCCX), Unity Connection, and Virtualized Voice Browser (VVB).
4. There is no workaround for the vulnerability, and the recommended action is to apply the available security updates. Specific patch information is provided for each affected product.
5. As a mitigation strategy, Cisco advises admins to implement access control lists (ACLs) on intermediary devices that separate the Cisco Unified Communications or Cisco Contact Center Solutions cluster from users and the rest of the network.
6. Before deploying any mitigation measures, admins should evaluate their applicability and potential impact on the environment, and test them in a controlled space to ensure business operations are not impacted.
7. The company is not aware of any public announcements or malicious use of the vulnerability.
Let me know if there is anything else you would like to include or discuss.