CVE-2024-20293
First published: Wed May 22 2024(Updated: )
A vulnerability in the activation of an access control list (ACL) on Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to bypass the protection that is offered by a configured ACL on an affected device. This vulnerability is due to a logic error that occurs when an ACL changes from inactive to active in the running configuration of an affected device. An attacker could exploit this vulnerability by sending traffic through the affected device that should be denied by the configured ACL. The reverse condition is also true—traffic that should be permitted could be denied by the configured ACL. A successful exploit could allow the attacker to bypass configured ACL protections on the affected device, allowing the attacker to access trusted networks that the device might be protecting. Note: This vulnerability applies to both IPv4 and IPv6 traffic as well as dual-stack ACL configurations in which both IPv4 and IPv6 ACLs are configured on an interface.
Credit: ykramarz@cisco.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Cisco Adaptive Security Appliance Software | ||
| Cisco Firepower Threat Defense |
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2024-20293?
CVE-2024-20293 has been classified with a high severity level due to the potential for unauthenticated remote attackers to bypass access control protections.
How do I fix CVE-2024-20293?
To fix CVE-2024-20293, Cisco recommends applying the latest software updates for the affected Cisco Adaptive Security Appliance and Firepower Threat Defense Software.
Which products are affected by CVE-2024-20293?
CVE-2024-20293 affects Cisco Adaptive Security Appliance Software and Cisco Firepower Threat Defense Software.
Can CVE-2024-20293 be exploited remotely?
Yes, CVE-2024-20293 can be exploited by an unauthenticated remote attacker.
What impact does CVE-2024-20293 have on network security?
CVE-2024-20293 allows attackers to bypass configured access control lists, potentially compromising network security.
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