Cross-site request forgery in Webmin - CVE-2021-31762
Published: April 26, 2021 / Updated: November 25, 2021
Vulnerability identifier: #VU52556
CSH Severity: Medium
CVSS v4: 5.1 [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]
CVE-ID: CVE-2021-31762
CWE-ID: CWE-352
Exploitation vector: Remote access
Exploit availability:
Public exploit is available
Vulnerability details
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 within the add users feature. 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 create a privileged user account.
Affected software
Webmin
How to mitigate CVE-2021-31762
Install update from vendor's website.
Webmin - update to 1.974
Links to Public Exploits and PoC-codes
- Exploit #7078 - Webmin 1.973 - Cross-Site Request Forgery (CSRF) (November 25, 2021)
- Exploit #5325 - CVE-2021-31762 (Exploiting a Cross-site request forgery (CSRF) attack to creat a new privileged user through the Webmin's add users feature) (April 28, 2021)
- Exploit #5323 - CVE-2021-31762 (Exploiting a Cross-site request forgery (CSRF) attack to creat a new privileged user through the Webmin's add users feature ) (April 28, 2021)