Progress Telerik Report Server Authentication Bypass Vulnerability

Fortiguard Security Advisory

What is the Vulnerability?Progress Telerik Report Server contains an authorization bypass by spoofing vulnerability, allowing an attacker to bypass authentication and create rogue administrator users. The flaw, tracked as CVE-2024-4358, has been added to CISA’s known exploited vulnerabilities catalog (KEV) in mid-June and FortiGuard Labs continues to see attack attempts targeting this particular vulnerability.What is the recommended Mitigation?Apply mitigations as outlined in the vendor instructions: What FortiGuard Coverage is available?FortiGuard Labs has provided protection through the IPS signature “Progress.Telerik.Report.Server.Register.Authentication.Bypass” which was released in mid-June to detect and block any attack attempts targeting the vulnerability (CVE-2024-4358). The FortiGuard Incident Response team can be engaged to help with any suspected compromise.


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