Discover the impact of CVE-2022-31246 on Electrum before 4.2.2, allowing file:// URLs in payment requests. Learn about the risks on Windows and UNIX systems and how to mitigate them.
Electrum before version 4.2.2 is impacted by CVE-2022-31246, allowing a file:// URL in the payment request parameter, which can lead to different consequences based on the operating system. On Windows, it can result in credential capture over SMB, while on Linux and UNIX, it could lead to a denial of service. Learn more about this security vulnerability and how to mitigate it.
Understanding CVE-2022-31246
This section delves into the specifics of CVE-2022-31246.
What is CVE-2022-31246?
The vulnerability in Electrum before version 4.2.2 permits the inclusion of a file:// URL in the payment request parameter, presenting security risks on Windows and denial of service issues on Linux and UNIX systems.
The Impact of CVE-2022-31246
While using such URLs in payment requests within Electrum, users on Windows are at risk of credential exposure over SMB, whereas those on Linux and UNIX may face denial of service by specifying the /dev/zero filename.
Technical Details of CVE-2022-31246
Explore more technical aspects of the CVE-2022-31246 vulnerability.
Vulnerability Description
The vulnerability allows malicious actors to exploit file:// URLs in payment requests, leading to severe consequences depending on the operating system.
Affected Systems and Versions
All versions of Electrum before 4.2.2 are affected by this vulnerability.
Exploitation Mechanism
File:// URLs in the payment request parameter can be manipulated to capture credentials on Windows or cause a denial of service on Linux and UNIX systems.
Mitigation and Prevention
Discover steps to mitigate and prevent the CVE-2022-31246 vulnerability.
Immediate Steps to Take
Users should update Electrum to version 4.2.2 or newer to mitigate the risks associated with this vulnerability.
Long-Term Security Practices
In addition to updating the software, practicing good security hygiene, such as avoiding suspicious payment requests, is essential for long-term protection.
Patching and Updates
Regularly applying software updates and patches, especially security-related ones, is crucial in safeguarding against known vulnerabilities.