A vulnerability classified as problematic has been found in Zarafa Collaboration Platform up to 7.2.0 (Groupware Software). Affected is an unknown functionality of the file /tmp/zarafa-vacation-* of the component zarafa-autorespond. The manipulation with an unknown input leads to a link following vulnerability. CWE is classifying the issue as CWE-59. The software attempts to access a file based on the filename, but it does not properly prevent that filename from identifying a link or shortcut that resolves to an unintended resource. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

zarafa-autorespond in Zarafa Collaboration Platform (ZCP) before 7.2.1 allows local users to gain privileges via a symlink attack on /tmp/zarafa-vacation-*.

The weakness was disclosed 01/11/2016 (Website). The advisory is shared for download at jira.zarafa.com. This vulnerability is traded as CVE-2015-6566. The attack needs to be approached locally. The exploitation doesn't require any form of authentication. There are known technical details, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 89347 (Fedora 21 : zarafa-7.1.14-1.fc21 (2015-a275fd68f2)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Fedora Local Security Checks.

Upgrading to version 7.2.1 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (89347).

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• Groupware Software

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• Zarafa

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• Collaboration Platform

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