CVE-2022-22686 Explained : Impact and Mitigation

A detailed overview of the Cross-Site Request Forgery (CSRF) vulnerability in Synology Calendar before version 2.3.4-0631 that allows remote attackers to hijack the authentication of administrators.

Understanding CVE-2022-22686

This CVE discloses a CSRF vulnerability in the webapi component of Synology Calendar before version 2.3.4-0631, enabling authenticated remote users to compromise administrator authentication.

What is CVE-2022-22686?

The CVE-2022-22686 is a Cross-Site Request Forgery (CSRF) vulnerability found in Synology Calendar, affecting versions prior to 2.3.4-0631. Attackers with remote authenticated access can exploit this flaw to impersonate administrators using unspecified vectors.

The Impact of CVE-2022-22686

The vulnerability possesses a CVSSv3.1 base score of 6.5, categorizing it as medium severity. It requires low attack complexity and low privileges to be exploited, with user interaction necessary. The confidentiality, integrity, and availability impacts are all rated as low.

Technical Details of CVE-2022-22686

A deeper look into the vulnerability, its affected systems, and the mechanism through which exploitation can occur.

Vulnerability Description

The CSRF vulnerability in Synology Calendar allows attackers to perform unauthorized actions on behalf of administrators, compromising the security and integrity of the application.

Affected Systems and Versions

Synology Calendar versions earlier than 2.3.4-0631 are confirmed to be impacted by this CSRF vulnerability, making them susceptible to exploitation.

Exploitation Mechanism

Remote authenticated users leveraging the CSRF vulnerability can manipulate the authentication process of administrators through various unidentified methods.

Mitigation and Prevention

Guidance on addressing and preventing the exploitation of CVE-2022-22686 to enhance system security.

Immediate Steps to Take

It is recommended to update Synology Calendar to version 2.3.4-0631 or newer to mitigate the CSRF vulnerability. Additionally, users should monitor for any unauthorized activities on the application.

Long-Term Security Practices

Implementing strong access controls, enforcing secure authentication mechanisms, and regularly monitoring for suspicious activities can help prevent CSRF attacks and safeguard system integrity.

Patching and Updates

Regularly applying security patches and staying up to date with software upgrades is crucial to protect against known vulnerabilities like CVE-2022-22686.