CVE-2023-20269 · Severity: critical · CVSS 9.1 · Exploited in the wild · Published 2023-09-13
A vulnerability in the remote access VPN feature of Cisco ASA and FTD software allows unauthenticated remote attackers to conduct brute force attacks to identify valid credentials. This is caused by improper separation of AAA between remote access VPN and other features like HTTPS management. Additionally, authenticated attackers may establish unauthorized clientless SSL VPN sessions on ASA versions 9.16 or earlier.
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2023-20269 attacked?
It is attacked over the network, in an operating system.
Am I affected by CVE-2023-20269?
Check whether you run Cisco Adaptive Security Appliance or Cisco Firepower Threat Defense. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Affected products
Cisco Adaptive Security Appliance (ASA) Software
Cisco Firepower Threat Defense (FTD) Software
Timeline
2023-09-13: disclosed
2023-09-13: advisory
2023-09-13: kev added: Added to CISA Known Exploited Vulnerabilities Catalog
2023-09-13: exploited: Reported as exploited in the wild at time of publication.