A vulnerability was found in Zurmo 3.2.1.57987acc3018. It has been rated as problematic. This issue affects an unknown code of the file app/index.php/meetings/default/createMeeting. The manipulation of the argument redirectUrl as part of a Parameter leads to a redirect vulnerability. Using CWE to declare the problem leads to CWE-601. A web application accepts a user-controlled input that specifies a link to an external site, and uses that link in a Redirect. This simplifies phishing attacks. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

An Open URL Redirect issue exists in Zurmo 3.2.1.57987acc3018 via an http: URL in the redirectUrl parameter to app/index.php/meetings/default/createMeeting.

The bug was discovered 09/13/2017. The weakness was shared 11/06/2017 (Website). The advisory is shared at bitbucket.org. The identification of this vulnerability is CVE-2017-16569 since 11/06/2017. The attack may be initiated remotely. A simple authentication is needed for exploitation. It demands that the victim is doing some kind of user interaction. Technical details are known, but no exploit is available. MITRE ATT&CK project uses the attack technique T1204.001 for this issue.

The vulnerability was handled as a non-public zero-day exploit for at least 54 days. During that time the estimated underground price was around $0-$5k.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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• Zurmo

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• 3.2.1.57987acc3018

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