A vulnerability has been found in Open-Xchange OX AppSuite up to 7.8.1-rev10 (Groupware Software) and classified as problematic. Affected by this vulnerability is some unknown processing of the component Login Screen Message Handler. The manipulation with an unknown input leads to a clickjacking vulnerability. The CWE definition for the vulnerability is CWE-451. The user interface (UI) does not properly represent critical information to the user, allowing the information - or its source - to be obscured or spoofed. This is often a component in phishing attacks. As an impact it is known to affect integrity. The summary by CVE is:

An issue was discovered in Open-Xchange OX App Suite before 7.8.1-rev11. Custom messages can be shown at the login screen to notify external users about issues with sharing links. This mechanism can be abused to inject arbitrary text messages. Users may get tricked to follow instructions injected by third parties as part of social engineering attacks.

The bug was discovered 06/22/2016. The weakness was presented 12/15/2016 (Website). The advisory is shared at securityfocus.com. This vulnerability is known as CVE-2016-4048 since 04/20/2016. The attack can be launched remotely. The exploitation doesn't need any form of authentication. It demands that the victim is doing some kind of user interaction. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1566.003 for this issue.

The vulnerability was handled as a non-public zero-day exploit for at least 176 days. During that time the estimated underground price was around $0-$5k.

Upgrading to version 7.8.1-rev11 eliminates this vulnerability.

Productinfo

Type

• Groupware Software

Vendor

• Open-Xchange

Name

• OX AppSuite

Version

• 7.8.1-rev10

License

• open-source

CPE 2.3info

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• 🔍

CPE 2.2info

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• 🔍

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