SB2016062703 - Information disclosure in Open-Xchange Guard
Published: June 27, 2016 Updated: November 22, 2018
Security Bulletin ID
SB2016062703
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Adjecent network
Highest impact
Information disclosure
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Information disclosure (CVE-ID: CVE-2016-4028)
CWE-ID: CWE-200 - Exposure of sensitive information to an unauthorized actor
CVSSv4: 5.3 [CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N]
The vulnerability allows a remote authenticated user to obtain authentication information on the target system.
The vulnerability exists due to access control error in the system for user-supplied authentication tokens with the correct encryption padding versus tokens with non-matching encryption padding. A remote authenticated user can determine the guest token in certain cases.
Successful exploitation of this vulnerability may result in disclosure of authentication information.
Remediation
Install update from vendor's website.