High severity · published Oct 23, 2024
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,…
8.6
CVSS
0.5%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.5% · higher than 44% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
AS
Adaptive Security Appliance · Cisco
9.8.1 through 9.8.4.48; 9.12.1 through 9.12.4.67; 9.14.1 through 9.14.4.24; 9.15.1 through 9.15.1.21; 9.16.1 through 9.16.4.61; 9.17.1 through 9.17.1.39; +2 more · source: CISA
CA
Cisco Adaptive Security Appliance (ASA) Software · Cisco
9.8.1; 9.8.1.5; 9.8.1.7; 9.8.2; 9.8.2.8; 9.8.2.14; +34 more · source: vendor
CF
Cisco Firepower Threat Defense Software · Cisco
6.2.3; 6.2.3.1; 6.2.3.2; 6.2.3.3; 6.2.3.4; 6.2.3.5; +34 more · source: vendor
AS
Adaptive Security Appliance Software · Cisco
9.8.1; 9.8.1.5; 9.8.1.7; 9.8.2; 9.8.2.8; 9.8.2.14; +34 more · source: NVD
SF
Secure Firewall Threat Defense · Cisco
6.2.3; 6.2.3.1; 6.2.3.2; 6.2.3.3; 6.2.3.4; 6.2.3.5; +34 more · source: NVD
FT
Firepower Threat Defense Software · Cisco
6.2.3 through 6.2.3.18; 6.4.0 through 6.4.0.18; 6.6.0 through 6.6.7.2; 6.7.0 through 6.7.0.3; 7.0.0 through 7.0.6.2; 7.1.0 through 7.1.0.3; +2 more · source: CISA
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2024-20402
CVE.org
https://www.cve.org/CVERecord?id=CVE-2024-20402
Vendor Advisory
https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asaftd-webvpn-dos-hOnB9pH4
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