SB2017011602 - CSRF attack in CMS Made Simple

Description

This security bulletin contains information about 1 security vulnerability.

1) Cross-site request forgery (CVE-ID: CVE-2016-7904)

The vulnerability allows a remote attacker to perform CSRF attacks.

The vulnerability exists due to improper validation of the HTTP request origin in "admin/adduser.php" script. A remote attacker can create a specially specially crafted web page, trick the authenticated victim into visiting it, perform cross-site request forgery attack and hijack the authentication of administrators for requests that create accounts.

Successful exploitation of the vulnerability may allow an attacker to gain administrative access to vulnerable website.

Remediation

Install update from vendor's website.

References

• http://www.openwall.com/lists/oss-security/2017/01/16/1
• http://dev.cmsmadesimple.org/project/changelog/5392