CVE-2024-20402

A vulnerability in the SSL VPN feature for Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause a

Severity
High 8.6
CVSS 3.1
Remote · no auth what this means
Exploited
Not listed
EPSS
0.005
42.2th percentile
Discovered by
Vendor
Vendor-published field
Published
Oct 23, 2024
Assigned by cisco

Description

A vulnerability in the SSL VPN feature for Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause an affected device to reload unexpectedly, resulting in a denial of service (DoS) condition. This vulnerability is due to a logic error in memory management when the device is handling SSL VPN connections. An attacker could exploit this vulnerability by sending crafted SSL/TLS packets to the SSL VPN server of the affected device. A successful exploit could allow the attacker to cause the device to reload, resulting in a DoS condition.

Weakness: CWE-788

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
  • cisco · firepower_threat_defense_software

Vendor advisory

cisco-sa-asaftd-webvpn-dos-hOnB9pH4

Cisco Adaptive Security Appliance and Firepower Threat Defense Software SSL VPN Memory Management Denial of Service Vulnerability

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

Bug IDs: CSCwb00494 , CSCwj82247

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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