Comparison using wrong factors in Cisco Systems, Inc products - CVE-2024-20342
Published: October 25, 2024
Vulnerability identifier: #VU99343
CSH Severity: Medium
CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]
CVE-ID: CVE-2024-20342
CWE-ID: CWE-1025
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to bypass a configured rate limiting filter.
The vulnerability exists due to an incorrect connection count comparison. A remote attacker can bypass the rate filter, leading to unintended traffic to enter the network protected by the affected device.
Affected software
Open Source Snort 2
Open Source Snort 3
Cisco Firewall Threat Defense (FTD)
Open Source Snort 3
Cisco Firewall Threat Defense (FTD)
How to mitigate CVE-2024-20342
Install updates from vendor's website.
Cisco Firewall Threat Defense (FTD) - addressed in versions 7.0.6.2, 7.2.6, 7.4.2.1
Open Source Snort 3 - update to 3.1.74.0
Open Source Snort 3 - update to 3.1.74.0
External References
- https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-snort-rf-bypass-OY8f3pnM
- https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-fmc-xss-M446vbEO
- https://sec.cloudapps.cisco.com/security/center/viewErp.x?alertId=ERP-75300
- https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asa-xss-yjj7ZjVq