SB2020040161 - Information disclosure in Zoom client for Windows
Published: April 1, 2020 Updated: April 21, 2020
Security Bulletin ID
SB2020040161
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Information disclosure
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Reliance on Untrusted Inputs in a Security Decision (CVE-ID: N/A)
CWE-ID: CWE-807 - Reliance on Untrusted Inputs in a Security Decision
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
The vulnerability allows a remote attacker to gain access to sensitive information.
The vulnerability exists due to Zoom client for Windows automatically processes comments in chat and converts URLs with UNC path into links. A remote attacker can trick the victim into following this link and gain access to NTLM credentials, sent by the victim's system.
Remediation
Install update from vendor's website.