Denial of service in Cisco Firepower Threat Defense Software
| Risk | High |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2022-20751 |
| CWE-ID | CWE-770 |
| Exploitation vector | Network |
| Public exploit | N/A |
| Vulnerable software |
Cisco Firepower Threat Defense (FTD) Hardware solutions / Security hardware applicances Firepower 1000 Series Appliances Hardware solutions / Other hardware appliances Firepower 2100 Series Security Appliance Server applications / IDS/IPS systems, Firewalls and proxy servers Cisco Firepower 4100 Series Next-Generation Firewall Hardware solutions / Firmware |
| Vendor | Cisco Systems, Inc |
Security Bulletin
This security bulletin contains one high risk vulnerability.
1) Allocation of Resources Without Limits or Throttling
EUVDB-ID: #VU62683
Risk: High
CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]
CVE-ID: CVE-2022-20751
CWE-ID:
CWE-770 - Allocation of Resources Without Limits or Throttling
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to insufficient memory management for certain Snort events. A remote attacker can send a specially crafted IP packet and perform a denial of service (DoS) attack.
MitigationInstall updates from vendor's website.
Vulnerable software versionsCisco Firepower Threat Defense (FTD): - - 6.7.0
Firepower 1000 Series Appliances: All versions
Firepower 2100 Series Security Appliance: All versions
Cisco Firepower 4100 Series Next-Generation Firewall: All versions
CPE2.3- cpe:2.3:h:cisco_systems:cisco_ftd:*:*:*:*:*:*:*:*
- cpe:2.3:h:cisco_systems:cisco_ftd:6.2.2:*:*:*:*:*:*:*
- cpe:2.3:h:cisco_systems:cisco_ftd:6.2.3:*:*:*:*:*:*:*
- cpe:2.3:h:cisco_systems:cisco_ftd:6.3.0:*:*:*:*:*:*:*
- cpe:2.3:h:cisco_systems:cisco_ftd:6.4.0:*:*:*:*:*:*:*
- cpe:2.3:h:cisco_systems:cisco_ftd:6.5.0:*:*:*:*:*:*:*
- cpe:2.3:h:cisco_systems:cisco_ftd:6.6.0:*:*:*:*:*:*:*
- cpe:2.3:h:cisco_systems:cisco_ftd:6.7.0:*:*:*:*:*:*:*
- cpe:2.3:h:cisco_systems:firepower_1000_series_appliances:*:*:*:*:*:*:*:*
- cpe:2.3:a:cisco_systems:firepower_2100_series_security_appliance:*:*:*:*:*:*:*:*
- cpe:2.3:h:cisco_systems:cisco_firepower_4100_series_next-generation_firewall:*:*:*:*:*:*:*:*
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ftd-snort-dos-hd2hFgM
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
