Cisco Firepower Threat Defense Pluggable Authentication resource consumption

Summaryinfo

A vulnerability was found in Cisco Firepower Threat Defense and FirePOWER Management Center. It has been classified as problematic. This issue affects some unknown processing of the component Pluggable Authentication. This manipulation causes resource consumption. This vulnerability is handled as CVE-2019-12700. The attack can be initiated remotely. There is not any exploit available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability has been found in Cisco Firepower Threat Defense and FirePOWER Management Center (Firewall Software) (unknown version) and classified as problematic. Affected by this vulnerability is an unknown code block of the component Pluggable Authentication. The manipulation with an unknown input leads to a resource consumption vulnerability. The CWE definition for the vulnerability is CWE-400. The product does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources. As an impact it is known to affect availability. The summary by CVE is:

A vulnerability in the configuration of the Pluggable Authentication Module (PAM) used in Cisco Firepower Threat Defense (FTD) Software, Cisco Firepower Management Center (FMC) Software, and Cisco FXOS Software could allow an authenticated, remote attacker to cause a denial of service (DoS) condition. The vulnerability is due to improper resource management in the context of user session management. An attacker could exploit this vulnerability by connecting to an affected system and performing many simultaneous successful Secure Shell (SSH) logins. A successful exploit could allow the attacker to exhaust system resources and cause the device to reload, resulting in a DoS condition. To exploit this vulnerability, the attacker needs valid user credentials on the system.

The weakness was released 10/02/2019 as cisco-sa-20191002-ftd-fpmc-dos as confirmed advisory (Website). The advisory is shared at tools.cisco.com. This vulnerability is known as CVE-2019-12700 since 06/04/2019. The attack can be launched remotely. The requirement for exploitation is a single authentication. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1499 for this issue.

Upgrading eliminates this vulnerability.

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Productinfo

Type

• Firewall Software

Vendor

• Cisco

Name

• FirePOWER Management Center
• Firepower Threat Defense

License

• commercial

Website

• Vendor: https://www.cisco.com/

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