#VU21629 Resource exhaustion in Cisco Secure Firewall Management Center (formerly Firepower Management Center, FMC) and Cisco Firepower 9300 Security Appliance - CVE-2019-12700

Vulnerability identifier: #VU21629

Vulnerability risk: Medium

CVSSv4.0: 4.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2019-12700

CWE-ID: CWE-400

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Cisco Secure Firewall Management Center (formerly Firepower Management Center, FMC)
Client/Desktop applications / Antivirus software/Personal firewalls
Cisco Firepower 9300 Security Appliance
Hardware solutions / Security hardware applicances

Vendor: Cisco Systems, Inc

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to improper resource management in the context of user session management. A remote authenticated attacker can connect to an affected system, perform many simultaneous successful Secure Shell (SSH) logins, trigger resource exhaustion and perform a denial of service (DoS) attack.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Cisco Secure Firewall Management Center (formerly Firepower Management Center, FMC): 6.2.2 - 6.2.3

Cisco Firepower 9300 Security Appliance: before 2.2.2.120

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External links
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20191002-ftd-fpmc-dos

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.