CVE-2024-20495

A vulnerability in the Remote Access VPN feature of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker t

Severity
High 8.6
CVSS 3.1
Remote · no auth what this means
Exploited
Not listed
EPSS
0.005
41.7th percentile
Discovered by
Vendor
Vendor-published field
Published
Oct 23, 2024
Assigned by cisco

Description

A vulnerability in the Remote Access VPN feature of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause the device to reload unexpectedly, resulting in a denial of service (DoS) condition on an affected device. This vulnerability is due to improper validation of client key data after the TLS session is established. An attacker could exploit this vulnerability by sending a crafted key value to an affected system over the secure TLS session. A successful exploit could allow the attacker to cause the device to reload, resulting in a DoS condition.

Weakness: CWE-20

Affected products

Vendor Product Category Matched by
Cisco Cisco Adaptive Security Appliance (ASA) Check your version Firewall / NGFW cna-assigner
Cisco Cisco Firepower Threat Defense (FTD) Check your version Firewall / NGFW cna-assigner
Vendor-reported products (4)
  • Cisco · Cisco Adaptive Security Appliance (ASA) Software
  • Cisco · Cisco Firepower Threat Defense Software
  • cisco · adaptive_security_appliance_software
  • cisco · firepower_threat_defense_software

Vendor advisory

cisco-sa-asa-vpn-cZf8gT

Cisco Adaptive Security Appliance and Firepower Threat Defense Software Remote Access VPN Denial of Service Vulnerability

Cisco’s rating: High (advisory CVSS 8.6) · Published Oct 23, 2024

Bug ID: CSCwk53369

The vendor’s rating applies to the whole advisory and can differ from this CVE’s own CVSS severity. Where this comes from

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