CVE-2021-25268 : Security Advisory and Response
Learn about CVE-2021-25268, multiple XSS vulnerabilities in Webadmin, enabling privilege escalation in older Sophos Firewall versions. Take immediate action to update and secure your system.
Multiple XSS vulnerabilities in Webadmin allow for privilege escalation from MySophos admin to SFOS admin in Sophos Firewall older than version 19.0 GA.
Understanding CVE-2021-25268
This CVE identifies multiple XSS vulnerabilities in Webadmin that can result in privilege escalation within Sophos Firewall.
What is CVE-2021-25268?
The CVE-2021-25268 vulnerability points to security flaws in the Webadmin component of Sophos Firewall, enabling an attacker to escalate privileges from MySophos admin to SFOS admin in versions prior to 19.0 GA.
The Impact of CVE-2021-25268
The impact of this vulnerability is significant, as it allows threat actors to execute a privilege escalation attack, potentially gaining unauthorized access to sensitive data and compromising the system's integrity.
Technical Details of CVE-2021-25268
In-depth technical insights into the CVE-2021-25268 vulnerability.
Vulnerability Description
The vulnerability stems from multiple XSS weaknesses in Webadmin, facilitating a seamless privilege escalation from MySophos admin to SFOS admin in older Sophos Firewall versions.
Affected Systems and Versions
Sophos Firewall versions prior to 19.0 GA are susceptible to this privilege escalation vulnerability.
Exploitation Mechanism
The exploitation of this vulnerability requires network access and user interaction, making it particularly risky for systems.
Mitigation and Prevention
Effective strategies to mitigate the risks associated with CVE-2021-25268.
Immediate Steps to Take
It is recommended to update Sophos Firewall to version 19.0 GA or newer to address this vulnerability. Additionally, organizations should restrict network access and closely monitor admin privileges.
Long-Term Security Practices
Implementing strict security protocols, conducting regular security audits, and providing employee training on cybersecurity best practices can enhance long-term protection against privilege escalation attacks.
Patching and Updates
Regularly applying security patches and staying up-to-date with the latest software updates from Sophos is crucial in preventing potential security breaches.