PT-2016-7145 · Open Xchange · Open-Xchange Ox Guard

Benjamin Daniel Mussler + 1 · Published 2016-12-15 · Updated 2018-10-19 · CVE-2016-6854

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 Guard versions prior to 2.4.2-rev5

Description An issue in Open-Xchange OX Guard allows script code injected into a mail with an inline PGP signature to be executed when the signature is verified. This can lead to malicious script code execution within a user's context, potentially resulting in session hijacking or triggering unwanted actions via the web interface, such as sending mail or deleting data.

Recommendations For versions prior to 2.4.2-rev5, update to version 2.4.2-rev5 or later to resolve the issue. As a temporary workaround, consider disabling the verification of inline PGP signatures until a patch is applied. Restrict access to sensitive features via the web interface to minimize the risk of exploitation.

Exploit

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2016-6854

Affected Products

Open-Xchange Ox Guard

References · 6

• 🔥 https://exploit-db.com/exploits/40377 · Exploit
• 🔥 http://packetstormsecurity.com/files/138701/Open-Xchange-Guard-2.4.2-Cross-Site-Scripting.html · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2016-6854 · Security Note
• https://osv.dev/vulnerability/CVE-2016-6854 · Vendor Advisory
• http://securityfocus.com/bid/92920 · Note
• http://securityfocus.com/archive/1/539395/100/0/threaded · Note