CVE-2021-22191 Explained : Impact and Mitigation
Get insights into CVE-2021-22191, a Wireshark vulnerability allowing remote code execution via packet injection. Learn the impact, affected versions, and mitigation steps.
A detailed overview of CVE-2021-22191, an improper URL handling vulnerability in Wireshark affecting versions 3.2.0 to 3.2.11 and 3.4.0 to 3.4.3.
Understanding CVE-2021-22191
This section delves into the description, impact, affected systems, and mitigation strategies related to CVE-2021-22191.
What is CVE-2021-22191?
The CVE-2021-22191 vulnerability in Wireshark versions 3.2.0 to 3.2.11 and 3.4.0 to 3.4.3 enables remote code execution via packet injection or a crafted capture file.
The Impact of CVE-2021-22191
With a CVSS base score of 6.3 (Medium severity), the vulnerability has a low attack complexity and requires user interaction, potentially leading to unauthorized code execution.
Technical Details of CVE-2021-22191
Explore the specific technical aspects of CVE-2021-22191 to better understand the nature of the vulnerability.
Vulnerability Description
The vulnerability arises from improper handling of URLs in Wireshark, opening avenues for remote code execution through malicious network activity.
Affected Systems and Versions
Wireshark versions 3.2.0 to 3.2.11 and 3.4.0 to 3.4.3 are impacted by this vulnerability, exposing users to the risk of remote code execution.
Exploitation Mechanism
The vulnerability allows threat actors to execute code remotely by injecting packets or utilizing a specially-crafted capture file within the affected versions of Wireshark.
Mitigation and Prevention
Discover the essential steps to secure your systems against CVE-2021-22191 and prevent potential exploitation.
Immediate Steps to Take
Users are advised to update Wireshark to versions 3.2.12 and 3.4.4 to address the vulnerability and mitigate the risk of remote code execution.
Long-Term Security Practices
Implementing robust network security measures, monitoring network traffic for anomalies, and adopting secure data handling practices can enhance overall system security.
Patching and Updates
Regularly apply security patches, stay informed about software vulnerabilities, and ensure timely updates to mitigate risks associated with known vulnerabilities.