CVE-2017-2839 : Exploit Details and Defense Strategies
Learn about CVE-2017-2839, a denial of service vulnerability in FreeRDP 2.0.0-beta1+android11. Find out the impact, affected systems, exploitation details, and mitigation steps.
FreeRDP 2.0.0-beta1+android11 Denial of Service Vulnerability
Understanding CVE-2017-2839
What is CVE-2017-2839?
A vulnerability in FreeRDP 2.0.0-beta1+android11 allows for a denial of service attack by exploiting the handling of challenge packets.
The Impact of CVE-2017-2839
The vulnerability can be triggered by a specially crafted challenge packet, leading to program termination and denial of service. Attackers can exploit this by compromising the server or using a man-in-the-middle attack.
Technical Details of CVE-2017-2839
Vulnerability Description
The vulnerability lies in the handling of challenge packets in FreeRDP 2.0.0-beta1+android11, enabling a denial of service condition.
Affected Systems and Versions
- Product: FreeRDP
- Vendor: FreeRDP
- Versions: 2.0.0-beta1+android11 on Windows, OSX, Linux
Exploitation Mechanism
- Attack Complexity: Low
- Attack Vector: Network
- Privileges Required: None
- User Interaction: Required
- Availability Impact: High
- Scope: Unchanged
- Vector String: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Mitigation and Prevention
Immediate Steps to Take
- Apply vendor patches promptly
- Monitor network traffic for suspicious activities
- Implement network segmentation
Long-Term Security Practices
- Regularly update software and systems
- Conduct security training for staff
Patching and Updates
Regularly check for security advisories and apply patches as soon as they are available.