CVE-2023-31145 : What You Need to Know
Discover the critical details of CVE-2023-31145 impacting CollaboraOnline, a reflected XSS vulnerability allowing account takeover attacks. Learn about affected versions and mitigation steps.
A reflected XSS vulnerability in Collabora Online has been identified, potentially allowing for an account takeover attack.
Understanding CVE-2023-31145
This CVE highlights a critical security flaw in Collabora Online that could have severe consequences if exploited.
What is CVE-2023-31145?
Collabora Online, an online office suite based on LibreOffice technology, is affected by a reflected XSS vulnerability in Nextcloud installations. This flaw enables attackers to inject malicious code into web pages, leading to potential account takeover attacks.
The Impact of CVE-2023-31145
The vulnerability poses a significant risk as attackers can execute unauthorized actions within a victim's browser session. This includes stealing sensitive data and performing actions on behalf of the victim without their consent.
Technical Details of CVE-2023-31145
The vulnerability involves a full CSP bypass, making it even more dangerous as it allows attackers to circumvent security measures like Content Security Policy (CSP) and execute malicious code.
Vulnerability Description
The flaw allows for injecting malicious code into web pages, compromising sensitive information and enabling unauthorized actions, such as account takeovers.
Affected Systems and Versions
CollaboraOnline versions < 6.4.27, >= 21.0.0, < 21.11.9, and >= 22.0.0, < 22.05.13 are impacted by this vulnerability.
Exploitation Mechanism
Attackers can exploit the reflected XSS vulnerability to bypass CSP, inject code into victims' browser sessions, and potentially perform account takeover attacks.
Mitigation and Prevention
Immediate action is crucial to secure affected systems and prevent exploitation of this vulnerability.
Immediate Steps to Take
Users are strongly advised to upgrade to patched versions 22.05.13, 21.11.9, or 6.4.27 to mitigate the risk of exploitation.
Long-Term Security Practices
Enforcing regular system updates, security audits, and user awareness training can help prevent future vulnerabilities and attacks.
Patching and Updates
Regularly updating CollaboraOnline to the latest secure versions is essential in maintaining a secure online environment.