CVE-2017-2838 : Security Advisory and Response
Learn about CVE-2017-2838, a denial of service vulnerability in FreeRDP 2.0.0-beta1+android11. Understand the impact, affected systems, exploitation mechanism, and mitigation steps.
A vulnerability has been discovered in FreeRDP 2.0.0-beta1+android11, allowing attackers to exploit challenge packets, leading to a denial of service.
Understanding CVE-2017-2838
This CVE involves a denial of service vulnerability in FreeRDP 2.0.0-beta1+android11 due to the mishandling of challenge packets.
What is CVE-2017-2838?
- The vulnerability in FreeRDP 2.0.0-beta1+android11 allows attackers to trigger a denial of service by sending a specially crafted challenge packet.
- Attackers can force the program to terminate, causing a denial of service situation.
- The exploit can be initiated by compromising the server or through a man-in-the-middle attack.
The Impact of CVE-2017-2838
- CVSS Base Score: 6.5 (Medium)
- Attack Vector: Network
- Attack Complexity: Low
- Privileges Required: None
- User Interaction: Required
- Availability Impact: High
- Scope: Unchanged
- Confidentiality Impact: None
- Integrity Impact: None
Technical Details of CVE-2017-2838
This section provides detailed technical information about the vulnerability.
Vulnerability Description
- The vulnerability arises from the mishandling of challenge packets in FreeRDP 2.0.0-beta1+android11.
Affected Systems and Versions
- Product: FreeRDP
- Vendor: FreeRDP
- Versions Affected: 2.0.0-beta1+android11 on Windows, OSX, Linux
Exploitation Mechanism
- Attackers exploit the vulnerability by sending a specifically crafted challenge packet to trigger a denial of service.
Mitigation and Prevention
Protecting systems from CVE-2017-2838 requires immediate actions and long-term security practices.
Immediate Steps to Take
- Apply vendor-supplied patches promptly.
- Monitor network traffic for any signs of exploitation.
- Implement network segmentation to limit the impact of potential attacks.
Long-Term Security Practices
- Regularly update and patch software to address known vulnerabilities.
- Conduct security training for employees to recognize and respond to potential threats.
Patching and Updates
- Stay informed about security advisories and updates from FreeRDP.