CVE-2016-6368: Input Validation
First published: Thu Apr 20 2017(Updated: )
A vulnerability in the detection engine parsing of Pragmatic General Multicast (PGM) protocol 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 input validation of the fields in the PGM protocol packet. An attacker could exploit this vulnerability by sending a crafted PGM packet 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. This vulnerability affects Cisco Firepower System Software that has one or more file action policies configured and is running on any of the following Cisco products: Adaptive Security Appliance (ASA) 5500-X Series with FirePOWER Services; Adaptive Security Appliance (ASA) 5500-X Series Next-Generation Firewalls; Advanced Malware Protection (AMP) for Networks, 7000 Series Appliances; Advanced Malware Protection (AMP) for Networks, 8000 Series Appliances; Firepower 4100 Series Security Appliances; FirePOWER 7000 Series Appliances; FirePOWER 8000 Series Appliances; Firepower 9300 Series Security Appliances; FirePOWER Threat Defense for Integrated Services Routers (ISRs); Industrial Security Appliance 3000; Sourcefire 3D System Appliances; Virtual Next-Generation Intrusion Prevention System (NGIPSv) for VMware. Fixed versions: 5.4.0.10 5.4.1.9 6.0.1.3 6.1.0 6.2.0. Cisco Bug IDs: CSCuz00876.
Credit: ykramarz@cisco.com ykramarz@cisco.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Cisco Secure Firewall Management Center | =6.0.0 | |
| Cisco Secure Firewall Management Center | =6.0.0.0 | |
| Cisco Secure Firewall Management Center | =6.0.0.1 | |
| Cisco Secure Firewall Management Center | =6.0.1 | |
| Cisco Firepower Management Center (FMC) and Firepower Threat Defense (FTD) Software | =6.0.0 | |
| Cisco Firepower Management Center (FMC) and Firepower Threat Defense (FTD) Software | =6.0.0.0 | |
| Cisco Firepower Management Center (FMC) and Firepower Threat Defense (FTD) Software | =6.0.0.1 | |
| Cisco Firepower Management Center (FMC) and Firepower Threat Defense (FTD) Software | =6.0.1 |
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2016-6368?
CVE-2016-6368 is classified as a high severity vulnerability due to its potential to cause a denial of service (DoS) condition.
How do I fix CVE-2016-6368?
To remediate CVE-2016-6368, users should upgrade to the patched versions of Cisco Secure Firewall Management Center or Cisco Firepower Management Center Software.
What impact does CVE-2016-6368 have on systems?
CVE-2016-6368 can lead to an unauthenticated remote attacker causing the Snort process to unexpectedly restart, resulting in service interruptions.
Which products are affected by CVE-2016-6368?
CVE-2016-6368 affects Cisco Secure Firewall Management Center and Cisco Firepower Management Center Software versions 6.0.0, 6.0.0.0, 6.0.0.1, and 6.0.1.
Is user authentication required to exploit CVE-2016-6368?
No, CVE-2016-6368 can be exploited by an unauthenticated remote attacker.
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- collector/mitre-cve
- source/MITRE
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- agent/severity
- agent/description
- agent/first-publish-date
- collector/nvd-api
- source/NVD
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- agent/author
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- agent/softwarecombine
- agent/tags
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- vendor/cisco
- canonical/cisco secure firewall management center
- version/cisco secure firewall management center/6.0.0
- version/cisco secure firewall management center/6.0.0.0
- version/cisco secure firewall management center/6.0.0.1
- version/cisco secure firewall management center/6.0.1
- canonical/cisco firepower management center (fmc) and firepower threat defense (ftd) software
- version/cisco firepower management center (fmc) and firepower threat defense (ftd) software/6.0.0
- version/cisco firepower management center (fmc) and firepower threat defense (ftd) software/6.0.0.0
- version/cisco firepower management center (fmc) and firepower threat defense (ftd) software/6.0.0.1
- version/cisco firepower management center (fmc) and firepower threat defense (ftd) software/6.0.1