SB2021120316 - Red Hat Enterprise Linux 7 update for mailman
Published: December 3, 2021 Updated: December 6, 2021
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 3 secuirty vulnerabilities.
1) Cross-site request forgery (CVE-ID: CVE-2021-42097)
The vulnerability allows a remote attacker to perform cross-site request forgery attacks.
The vulnerability exists due to insufficient validation of the HTTP request origin. A remote attacker can trick the victim to visit a specially crafted web page and take over the admin account, as the csrf_token value is not specific to a single user account.
2) Cross-site request forgery (CVE-ID: CVE-2021-44227)
The vulnerability allows a remote attacker to perform cross-site request forgery attacks.
The vulnerability exists due to insufficient validation of the HTTP request origin. A remote attacker can trick the victim to visit a specially crafted web page and perform arbitrary actions on behalf of the victim on the vulnerable website, such as get a CSRF token and craft an admin request (using that token) to set a new admin password or make other changes.
3) Cross-site request forgery (CVE-ID: CVE-2016-6893)
The vulnerability allows attackers to perform cross-site request forgery attacks.
The vulnerability exists due to incorrect validation of HTTP request origin. A remote attacker can trick the victim to visit a malicious page with CSRF exploit and obtain victim's password.
Successful exploitation of this vulnerability will allow an attacker to compromise vulnerable application.
Remediation
Install update from vendor's website.