CVE-2024-20495
HIGHDescription
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.
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CVSS v3.1 Score
8.6
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
Weakness Type (CWE)
CWE-20
Improper Input Validation
Affected Products
| Vendor | Product |
|---|---|
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | firepower_threat_defense |
| cisco | firepower_threat_defense |
| cisco | firepower_threat_defense |
| cisco | firepower_threat_defense |
| cisco | firepower_threat_defense |
| cisco | firepower_threat_defense |
| cisco | firepower_threat_defense |
| cisco | firepower_threat_defense |
| cisco | firepower_threat_defense |
| cisco | firepower_threat_defense |
| cisco | firepower_threat_defense |
| cisco | firepower_threat_defense |
| cisco | firepower_threat_defense |
| cisco | firepower_threat_defense |
| cisco | firepower_threat_defense |
| cisco | firepower_threat_defense |
| cisco | firepower_threat_defense |
| cisco | firepower_threat_defense |
| cisco | firepower_threat_defense |
| cisco | firepower_threat_defense |
| cisco | firepower_threat_defense |
| cisco | firepower_threat_defense |
| cisco | firepower_threat_defense |
| cisco | firepower_threat_defense |
| cisco | firepower_threat_defense |
| cisco | firepower_threat_defense |
| cisco | firepower_threat_defense |
| cisco | firepower_threat_defense |
| cisco | firepower_threat_defense |
| cisco | firepower_threat_defense |
| cisco | firepower_threat_defense |
| cisco | firepower_threat_defense |
| cisco | firepower_threat_defense |
| cisco | firepower_threat_defense |
| cisco | firepower_threat_defense |
| cisco | firepower_threat_defense |
| cisco | firepower_threat_defense |
| cisco | firepower_threat_defense |
| cisco | firepower_threat_defense |
| cisco | firepower_threat_defense |
| cisco | firepower_threat_defense |
| cisco | firepower_threat_defense |
| cisco | firepower_threat_defense |
| cisco | firepower_threat_defense |
| cisco | firepower_threat_defense |
References
Frequently Asked Questions
What is 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 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. It has a CVSS v3.1 base score of 8.6 (HIGH).
How severe is CVE-2024-20495? +
CVE-2024-20495 has a CVSS v3.1 score of 8.6 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.
What products are affected by CVE-2024-20495? +
CVE-2024-20495 affects products from cisco, specifically: adaptive_security_appliance_software, firepower_threat_defense. Check the affected products table above for specific version ranges.
How do I check if I'm vulnerable to CVE-2024-20495? +
You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.
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