CVE-2017-6632 : Vulnerability Insights and Analysis
Learn about CVE-2017-6632 affecting Cisco FirePOWER System Software versions 5.3.0 through 6.2.2. Discover the impact, exploitation method, and mitigation steps.
Cisco FirePOWER System Software versions 5.3.0 through 6.2.2 are affected by a vulnerability in the logging setup of SSL policies that could lead to a denial of service (DoS) attack.
Understanding CVE-2017-6632
An issue in the logging configuration of SSL policies for Cisco FirePOWER System Software versions 5.3.0 through 6.2.2 could allow an attacker to cause a DoS condition by flooding the system with manipulated TCP packets.
What is CVE-2017-6632?
The vulnerability stems from the logging mechanism used by the affected software for specific TCP packets, potentially resulting in a DoS situation due to excessive resource utilization.
The Impact of CVE-2017-6632
- Successful exploitation could lead to a DoS condition on the targeted device
- The exploit's effectiveness depends on the SSL policy logging configuration
- Default actions for SSL policies on affected devices are impacted
Technical Details of CVE-2017-6632
The following technical details provide insight into the vulnerability and its implications:
Vulnerability Description
- Vulnerability in SSL policy logging configuration
- Allows an attacker to flood the system with crafted TCP packets
Affected Systems and Versions
- Cisco FirePOWER System Software versions 5.3.0 through 6.2.2
Exploitation Mechanism
- Attacker sends manipulated TCP packets to overwhelm the targeted device
Mitigation and Prevention
Taking immediate steps and implementing long-term security practices are crucial to mitigating the risks associated with CVE-2017-6632:
Immediate Steps to Take
- Apply vendor-provided patches and updates promptly
- Monitor network traffic for any signs of exploitation
- Restrict network access to vulnerable systems
Long-Term Security Practices
- Regularly update and patch software and systems
- Implement network segmentation to limit the impact of potential attacks
- Conduct security training for staff to recognize and respond to threats
Patching and Updates
- Refer to Cisco Bug IDs: CSCvd07072 for specific patch information