CVE-2022-37783 : Security Advisory and Response

Craft CMS versions between 3.0.0 and 3.7.32 expose password hashes of users who authenticate using their E-Mail address or username in Anti-CSRF-Tokens, potentially leading to security risks.

Understanding CVE-2022-37783

Craft CMS utilizes a cookie and an HTML hidden field to prevent Cross Site Request Forgery attacks. However, this CVE highlights a vulnerability in the disclosure of password hashes.

What is CVE-2022-37783?

Craft CMS versions 3.0.0 through 3.7.32 reveal password hashes of users who log in using their E-Mail address or username, posing a security threat as these hashes can be decoded.

The Impact of CVE-2022-37783

The exposure of password hashes can facilitate malicious actors in decoding user passwords, leading to unauthorized access to accounts and potential security breaches.

Technical Details of CVE-2022-37783

This section delves into the specifics of the vulnerability, the affected systems, and how the exploitation can occur.

Vulnerability Description

Craft CMS' handling of password hash disclosure due to authentication methods using E-Mail addresses or usernames is at the core of this vulnerability.

Affected Systems and Versions

All Craft CMS versions between 3.0.0 and 3.7.32 are impacted by this vulnerability, leaving user password hashes exposed to potential attacks.

Exploitation Mechanism

By leveraging the CRAFT_CSRF_TOKEN cookie and the corresponding HTML hidden field, threat actors can decode the password hashes of users, bypassing security measures.

Mitigation and Prevention

To secure systems and prevent exploitation, immediate steps and long-term security practices are essential.

Immediate Steps to Take

Craft CMS users should update to the latest version to patch the vulnerability and protect user password hashes from exposure. Additionally, enabling multi-factor authentication can enhance security.

Long-Term Security Practices

Regular security audits, code reviews, and employee training on best security practices can bolster the overall security posture and mitigate such vulnerabilities in the future.

Patching and Updates

Craft CMS has released patches addressing this vulnerability. Organizations should promptly apply these updates to safeguard user data and prevent unauthorized access.