CVE-2020-15179 : Exploit Details and Defense Strategies
Learn about CVE-2020-15179, a vulnerability in ScratchSig extension for MediaWiki allowing Cross-Site Scripting. Find out the impact, affected systems, and mitigation steps to prevent account takeover.
The ScratchSig extension for MediaWiki before version 1.0.1 allows stored Cross-Site Scripting, potentially leading to privilege escalation and account takeover.
Understanding CVE-2020-15179
What is CVE-2020-15179?
The CVE-2020-15179 vulnerability, known as HTML Injection in ScratchSig, affects the wiki-scratchsig product by InternationalScratchWiki.
The Impact of CVE-2020-15179
The vulnerability allows attackers with edit permission to execute scripts on visitors' browsers, leading to potential privilege escalation and account takeover.
Technical Details of CVE-2020-15179
Vulnerability Description
The ScratchSig extension for MediaWiki before version 1.0.1 allows stored Cross-Site Scripting using specific tags, posing a significant security risk.
Affected Systems and Versions
- Product: wiki-scratchsig
- Vendor: InternationalScratchWiki
- Versions Affected: < 1.0.1
Exploitation Mechanism
- Attack Complexity: HIGH
- Attack Vector: NETWORK
- Privileges Required: LOW
- User Interaction: REQUIRED
- Scope: CHANGED
- Confidentiality, Integrity, and Availability Impact: HIGH
Mitigation and Prevention
Immediate Steps to Take
- Update to version 1.0.1 to patch the vulnerability.
- Disable the ScratchSig extension if unable to update immediately.
Long-Term Security Practices
- Regularly update software and extensions to the latest versions.
- Educate users on safe browsing practices to prevent similar attacks.
Patching and Updates
Ensure all systems running the affected version of wiki-scratchsig are updated to version 1.0.1 to mitigate the risk of HTML Injection.