CVE-2018-0385 : What You Need to Know
Learn about CVE-2018-0385 affecting Cisco Firepower System Software. Discover how an attacker could exploit SSL protocol parsing, causing a denial of service (DoS) by restarting the Snort process.
Cisco Firepower System Software has a vulnerability in SSL protocol packet parsing that could allow a remote unauthenticated attacker to trigger a denial of service (DoS) by causing the Snort process to restart unexpectedly. Learn more about the impact, technical details, and mitigation steps for CVE-2018-0385.
Understanding CVE-2018-0385
A weakness in SSL protocol packet parsing for Cisco Firepower System Software could lead to a DoS condition due to the improper handling of SSL traffic input.
What is CVE-2018-0385?
The vulnerability in Cisco Firepower System Software allows an attacker to exploit SSL traffic parsing, causing a DoS by restarting the Snort process unexpectedly.
The Impact of CVE-2018-0385
- An unauthenticated remote attacker can trigger a DoS condition by manipulating SSL traffic.
- The vulnerability arises from incorrect handling of SSL traffic input.
Technical Details of CVE-2018-0385
The technical aspects of the vulnerability in Cisco Firepower System Software.
Vulnerability Description
- Attacker can send manipulated SSL traffic to the detection engine, causing Snort process restart and potential DoS.
Affected Systems and Versions
- Product: Cisco Firepower unknown
- Version: Cisco Firepower unknown
Exploitation Mechanism
- Attacker sends crafted SSL traffic to the detection engine on the device.
- If Snort process restarts and traffic inspection is bypassed or dropped, a DoS condition occurs.
Mitigation and Prevention
Steps to address and prevent the CVE-2018-0385 vulnerability.
Immediate Steps to Take
- Apply vendor patches and updates promptly.
- Monitor network traffic for any suspicious SSL activities.
- Implement firewall rules to restrict SSL traffic.
Long-Term Security Practices
- Regularly update and patch all software and firmware.
- Conduct security audits and penetration testing to identify vulnerabilities.
- Educate users on safe browsing practices and phishing awareness.
Patching and Updates
- Cisco has released patches to address the vulnerability.
- Regularly check for updates and apply them to ensure system security.