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Cisco Firepower Detection Engine HTTP Denial of Service Vulnerability

cisco-sa-20161019-fpsnort · High · Published · Updated

A vulnerability in the detection engine reassembly of HTTP packets for Cisco Firepower System Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition due to the Snort process unexpectedly restarting. The vulnerability is due to improper handling of an HTTP packet stream. An attacker could exploit this vulnerability by sending a crafted HTTP packet stream to the detection engine on the targeted device. An exploit could allow the attacker to cause a DoS condition if the Snort process restarts and traffic inspection is bypassed or traffic is dropped. Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.   This advisory is available at the following link: https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20161019-fpsnort

Cisco advisory ·CSAF JSON

Workarounds

There are no workarounds that address this vulnerability.

CVEsCVE-2016-6439
Cisco Bug IDsCSCux61630
CVSS ScoreBase 7.1
Base 7.1 AV:N/AC:M/Au:N/C:N/I:N/A:C/E:F/RL:OF/RC:C
Product Names From Source
Cisco Firepower Management Center Base, Cisco Firepower Management Center 5.4.1.3, Cisco Firepower Management Center 5.4.1.5, Cisco Firepower Management Center 5.4.1.4, Cisco Firepower Management Center 5.4.1.2, Cisco Firepower Management Center 5.4.1.1, Cisco Firepower Management Center 5.4.1, Cisco Firepower Management Center 5.4.0, Cisco Firepower Management Center 5.4.0.2, Cisco Firepower Management Center 5.4.1.6, Cisco Firepower Management Center 6.0.0, Cisco Firepower Management Center 6.0.1, Cisco Firepower Management Center 6.0.0.1, Cisco Firepower Management Center 6.0.0.0, Cisco Firepower Management Center 5.3.0.2, Cisco Firepower Management Center 5.3.1.6, Cisco Firepower Management Center 5.3.1.5, Cisco Firepower Management Center 5.3.1.4, Cisco Firepower Management Center 5.3.1.3, Cisco Firepower Management Center 5.3.0.3, Cisco Firepower Management Center 5.3.0, Cisco Firepower Management Center 5.3.1, Cisco Firepower Management Center 5.3.0.4, Cisco Secure Firewall Management Center (FMC), Cisco Firepower Management Center

Related Products

Product CVE Evidence
Cisco Secure Firewall Management Center (FMC) CVE-2016-6439 Cisco OpenVuln
Cisco Firepower System Software CVE-2016-6439 Cisco OpenVuln
Cisco Firepower Management Center CVE-2016-6439 Cisco OpenVuln