CVE-2017-17084 : Exploit Details and Defense Strategies
Learn about CVE-2017-17084 affecting Wireshark versions 2.4.0 to 2.4.2 and 2.2.0 to 2.2.10. Find out how this vulnerability could lead to a crash and the necessary mitigation steps.
Wireshark versions 2.4.0 to 2.4.2 and 2.2.0 to 2.2.10 had a vulnerability in the IWARP_MPA dissector that could lead to a crash. The issue was addressed by implementing a validation for the ULPDU length.
Understanding CVE-2017-17084
This CVE entry pertains to a specific vulnerability in Wireshark versions 2.4.0 to 2.4.2 and 2.2.0 to 2.2.10 that could potentially cause a crash due to a flaw in the IWARP_MPA dissector.
What is CVE-2017-17084?
The vulnerability in Wireshark versions 2.4.0 to 2.4.2 and 2.2.0 to 2.2.10 allowed for a crash to occur due to an issue in the IWARP_MPA dissector. By validating the ULPDU length in epan/dissectors/packet-iwarp-mpa.c, this vulnerability was mitigated.
The Impact of CVE-2017-17084
The vulnerability could be exploited by an attacker to cause a denial of service (DoS) by crashing the Wireshark application.
Technical Details of CVE-2017-17084
Wireshark versions 2.4.0 to 2.4.2 and 2.2.0 to 2.2.10 were affected by a vulnerability in the IWARP_MPA dissector.
Vulnerability Description
The vulnerability in the IWARP_MPA dissector could lead to a crash in Wireshark versions 2.4.0 to 2.4.2 and 2.2.0 to 2.2.10.
Affected Systems and Versions
- Wireshark versions 2.4.0 to 2.4.2
- Wireshark versions 2.2.0 to 2.2.10
Exploitation Mechanism
Attackers could exploit this vulnerability to crash Wireshark by manipulating the ULPDU length.
Mitigation and Prevention
Immediate Steps to Take:
- Update Wireshark to the latest version that includes the fix.
- Avoid opening suspicious or untrusted capture files.
Long-Term Security Practices:
- Regularly update Wireshark and other software to patch known vulnerabilities.
- Implement network segmentation to limit the impact of potential attacks.
- Monitor network traffic for any unusual or malicious activities.
- Educate users on safe browsing habits and the importance of software updates.
Patching and Updates
Ensure that Wireshark is regularly updated to the latest version to prevent exploitation of known vulnerabilities.