CVE-2022-22993 : Security Advisory and Response
Learn about CVE-2022-22993, a Limited SSRF vulnerability impacting Western Digital My Cloud devices. Find mitigation steps and the importance of updating to firmware version 5.19.117.
A limited SSRF vulnerability was discovered on Western Digital My Cloud devices, potentially allowing attackers to impersonate a server and access any page by circumventing access controls through CVE-2022-22993.
Understanding CVE-2022-22993
CVE-2022-22993 refers to a Limited Server-Side Request Forgery (SSRF) vulnerability affecting Western Digital My Cloud devices.
What is CVE-2022-22993?
The vulnerability on My Cloud devices enables attackers to mimic a server, reaching various server pages, by evading access restrictions through whitelist bypass.
The Impact of CVE-2022-22993
With a CVSS base score of 7.8, this high-severity vulnerability could lead to confidentiality, integrity, and high privilege impacts, though it doesn't affect availability.
Technical Details of CVE-2022-22993
The vulnerability is rated with a CVSS score of 7.8, indicating high complexity and requiring local access. There are no user interaction prerequisites, but it results in high confidentiality and integrity impacts with scope changes.
Vulnerability Description
The SSRF flaw allows threat actors to compromise server integrity and confidentiality by accessing any server page through impersonation.
Affected Systems and Versions
Western Digital My Cloud OS 5 versions prior to 5.19.117 are impacted by this vulnerability.
Exploitation Mechanism
Attackers can exploit this vulnerability by bypassing access controls, posing as trusted servers, and reaching unauthorized pages through a whitelisted parameter.
Mitigation and Prevention
To safeguard against CVE-2022-22993, immediate action and long-term security measures are necessary.
Immediate Steps to Take
Users are advised to update their My Cloud devices to firmware version 5.19.117, addressing the vulnerability.
Long-Term Security Practices
Regularly check for security updates, monitor vendor alerts, and enhance access controls to prevent SSRF attacks.
Patching and Updates
Keep My Cloud devices up to date with the latest security patches and firmware releases to mitigate the risks associated with SSRF vulnerabilities.