[FD] F-Secure Radar Login Page Unvalidated Redirect Vulnerability

F-Secure Radar Login Page Unvalidated Redirect Vulnerability CVE-2018-6324 http://ift.tt/2EvoVbX # Summary The application will upon successfully logging in redirect the user to a user-controlled destination. A victim user may not recognise that a redirection takes place as they expect to be sent to a new page. # Vendor Description F-Secure Radar is a turnkey vulnerability scanning and management platform. It allows you to identify and manage both internal and external threats, report risks, and be compliant with current and future regulations (such as PCI and GDPR compliance). It gives you visibility into shadow IT - to map your full attack surface and respond to critical vulnerabilities associated with cyber threats. Source: http://ift.tt/2qlIHuG # Remediation F-Secure has remediated this issue; no action required for cloud users or on-premise users receiving updates. # Technical Details Navigating to the Radar application at http://ift.tt/2CpzBmF will result in the user being sent to http://ift.tt/2EzdsrW. Upon successful authentication, the value of the ReturnURL query parameter will be used to determine the redirect destination. It is possible to set this to any arbitrary domain as the value is neither validated nor forced to be a relative path. The following URL would redirect the user to example.com after logging in: http://ift.tt/2CqeZuj This could be used to send the user to a phishing site, prompting them to re-authenticate (e.g. "Wrong password or username, please try again"). # Vulnerability Disclosure Timeline 2018-02-05 - Vulnerability discovered 2018-02-05 - Vendor contact & response 2018-02-09 - Vendor confirms fix 2018-02-15 - Public disclosure This post is also available at http://ift.tt/2Ez8LhS Best regards, Oscar Hjelm

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