SB2021120316 - Red Hat Enterprise Linux 7 update for mailman

Description

This security bulletin contains information about 3 vulnerabilities.

1) Cross-site request forgery (CVE-ID: CVE-2021-42097)

CWE-ID: CWE-352 - Cross-Site Request Forgery (CSRF)

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green

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)

CWE-ID: CWE-352 - Cross-Site Request Forgery (CSRF)

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green

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)

CWE-ID: CWE-352 - Cross-Site Request Forgery (CSRF)

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:U/U:Green

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.

References

• https://access.redhat.com/errata/RHSA-2021:4913