CVE-2021-21275 : What You Need to Know
Explore CVE-2021-21275, a CSRF vulnerability in MediaWiki's Report extension. Learn its impact, affected versions, exploitation, mitigation steps, and long-term security practices.
This CVE article provides insights into a Cross-Site Request Forgery (CSRF) vulnerability present in the MediaWiki "Report" extension, affecting versions prior to commit f828dc6.
Understanding CVE-2021-21275
This section delves into the nature of the CSRF vulnerability and its impact.
What is CVE-2021-21275?
The MediaWiki "Report" extension was susceptible to CSRF attacks, allowing malicious entities to forge requests on Special:Report.
The Impact of CVE-2021-21275
The vulnerability could be exploited to manipulate requests to report a revision, potentially leading to unauthorized actions.
Technical Details of CVE-2021-21275
Explore the specifics of the vulnerability in this section.
Vulnerability Description
The lack of CSRF protection on Special:Report enabled the forging of revision reports until commit f828dc6, which introduced MediaWiki edit tokens for security.
Affected Systems and Versions
The CSRF vulnerability impacted MediaWiki "Report" extension versions earlier than commit f828dc6.
Exploitation Mechanism
Attackers could exploit this vulnerability to trick users into performing unintended actions on the platform.
Mitigation and Prevention
Discover the steps to address and prevent the CSRF vulnerability.
Immediate Steps to Take
Users should update to the fixed version (f828dc6) to mitigate the CSRF risk.
Long-Term Security Practices
Implement security measures to safeguard against CSRF attacks, such as enforcing proper request verification mechanisms.
Patching and Updates
Regularly monitor security advisories and apply patches promptly to stay protected from known vulnerabilities.