PT-2016-6249 · Open Xchange · Open-Xchange Appsuite

Phil Oester · Published 2016-12-15 · Updated 2018-10-19 · CVE-2016-5124

Positive Technologies (AI Summary)

CVSS v3.1

6.1

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions Open-Xchange OX App Suite versions prior to 7.8.1-rev14

Description An issue in Open-Xchange OX App Suite allows for script code execution in the context of the active user when adding images from external sources to HTML editors by drag&drop. This can be exploited by tricking a user into using an image from a specially crafted website and adding it to HTML editor areas, such as E-Mail Compose or OX Text. The attack circumvents typical XSS filters and detection mechanisms since the code is injected locally. Malicious script code can be executed within a user's context, leading to session hijacking or triggering unwanted actions via the web interface, such as sending mail or deleting data. This vulnerability requires social-engineering to convince a user to follow specific steps.

Recommendations For versions prior to 7.8.1-rev14, update to version 7.8.1-rev14 or later to resolve the issue. As a temporary workaround, consider restricting the use of external images in HTML editors to minimize the risk of exploitation. Avoid using the drag&drop feature to add images from external sources to HTML editor areas until the issue is resolved.

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2016-5124

Affected Products

Open-Xchange Appsuite

References · 6

• https://osv.dev/vulnerability/CVE-2016-5124 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2016-5124 · Security Note
• http://securitytracker.com/id/1036296 · Note
• http://packetstormsecurity.com/files/137894/Open-Xchange-App-Suite-7.8.1-Cross-Site-Scripting.html · Note
• http://securityfocus.com/bid/91775 · Note
• http://securityfocus.com/archive/1/538892/100/0/threaded · Note