Comparison using wrong factors in several Cisco Products
| Risk | Medium |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2024-20342 |
| CWE-ID | CWE-1025 |
| Exploitation vector | Network |
| Public exploit | N/A |
| Vulnerable software |
Open Source Snort 2 Server applications / IDS/IPS systems, Firewalls and proxy servers Open Source Snort 3 Server applications / IDS/IPS systems, Firewalls and proxy servers Cisco Firepower Threat Defense (FTD) Hardware solutions / Security hardware applicances |
| Vendor | Cisco Systems, Inc |
Security Bulletin
This security bulletin contains one medium risk vulnerability.
1) Comparison using wrong factors
EUVDB-ID: #VU99343
Risk: Medium
CVSSv3.1: 5.1 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L/E:U/RL:O/RC:C]
CVE-ID: CVE-2024-20342
CWE-ID:
CWE-1025 - Comparison using wrong factors
Exploit availability: No
DescriptionThe 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.
MitigationInstall updates from vendor's website.
Vulnerable software versionsOpen Source Snort 2: All versions
Cisco Firepower Threat Defense (FTD): - - 7.4
Open Source Snort 3: before 3.1.74.0
CPE2.3- cpe:2.3:a:cisco_systems:open_source_snort_2:*:*:*:*:*:*:*:
- cpe:2.3:h:cisco_systems:cisco_ftd:7.0:*:*:*:*:*:*:
- cpe:2.3:h:cisco_systems:cisco_ftd:7.1:*:*:*:*:*:*:
- cpe:2.3:h:cisco_systems:cisco_ftd:7.2:*:*:*:*:*:*:
- cpe:2.3:h:cisco_systems:cisco_ftd:7.3:*:*:*:*:*:*:
- cpe:2.3:h:cisco_systems:cisco_ftd:7.4:*:*:*:*:*:*:
- cpe:2.3:a:cisco_systems:open_source_snort_3:*:*:*:*:*:*:*:
http://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-snort-rf-bypass-OY8f3pnM
http://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-fmc-xss-M446vbEO
http://sec.cloudapps.cisco.com/security/center/viewErp.x?alertId=ERP-75300
http://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asa-xss-yjj7ZjVq
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
How the attacker can exploit this vulnerability?
The attacker would have to send a specially crafted request to the affected application in order to exploit this vulnerability.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
