CVE-2023-20042
Published: Nov 1, 2023
Modified: Aug 2, 2024
CVSS v3.1
6.8
Description
A vulnerability in the AnyConnect SSL VPN feature of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to an implementation error within the SSL/TLS session handling process that can prevent the release of a session handler under specific conditions. An attacker could exploit this vulnerability by sending crafted SSL/TLS traffic to an affected device, increasing the probability of session handler leaks. A successful exploit could allow the attacker to eventually deplete the available session handler pool, preventing new sessions from being established and causing a DoS condition.
| Vendor | Product | Versions |
|---|---|---|
Cisco | Cisco Adaptive Security Appliance (ASA) Software | affected 9.16.1affected 9.16.1.28affected 9.16.2affected 9.16.2.3affected 9.16.2.7+25 more versions |
Cisco | Cisco Firepower Threat Defense Software | affected 7.0.0affected 7.0.0.1affected 7.0.1affected 7.0.1.1affected 7.0.2+16 more versions |
Weaknesses (CWE)
CVSS v3.1 Details
CVSS v3.1 Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:H
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
References
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