CVE-2024-20316

Summary

CVE-2024-20316 is a newly discovered vulnerability affecting Cisco IOS XE Software. This issue lies in the data model interface (DMI) services, allowing unauthenticated, remote attackers to access resources that are typically protected by configured IPv4 access control lists (ACLs). The root cause stems from improper error handling during an IPv4 ACL update using NETCONF or RESTCONF protocol. When an administrator successfully updates an ACL, the reordering of access control entries (ACEs) in the updated ACL can create a new access point for the attacker, enabling them to exploit the vulnerability and gain unauthorized access to resources across an affected device.

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