CVE-2016-5124 Information

Description

An issue was discovered in Open-Xchange OX App Suite before 7.8.1-rev14. Adding images from external sources to HTML editors by drag&drop can potentially lead to script code execution in the context of the active user. To exploit this a user needs to be tricked to use an image from a specially crafted website and add it to HTML editor areas of OX App Suite for example E-Mail Compose or OX Text. This specific attack circumvents typical XSS filters and detection mechanisms since the code is not loaded from an external service but injected locally. Malicious script code can be executed within a user’s context. This can lead to session hijacking or triggering unwanted actions via the web interface (sending mail deleting data etc.). To exploit this vulnerability a attacker needs to convince a user to follow specific steps (social-engineering).

CVSS Vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Reference

http://packetstormsecurity.com/files/137894/Open-Xchange-App-Suite-7.8.1-Cross-Site-Scripting.html http://www.securityfocus.com/archive/1/538892/100/0/threaded http://www.securityfocus.com/bid/91775 http://www.securitytracker.com/id/1036296

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

REQUIRED

Confidentiality Impact

CHANGED

Integrity Impact

LOW

Availability Impact

LOW

Base Score

NONE

Base Severity

6.1