SB2017031424 - Security bypass in Microsoft Lync
Published: March 14, 2017 Updated: March 14, 2017
Security Bulletin ID
SB2017031424
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Data manipulation
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Security bypass (CVE-ID: CVE-2017-0129)
CWE-ID: CWE-295 - Improper Certificate Validation
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a remote attacker to bypass security restrictions on the target system.
The vulnerability exists due to improper certificates validation. A remote attacker can perform man-in-the-middle attack and tamper with trusted communications between the server and target client.
Successful exploitation of the vulnerability may result in successful Man-in-the-Middle (MitM) attack against vulnerable system.
Remediation
Install update from vendor's website.