CVE-2021-34418 vulnerability in Zoom Products
Published on November 11, 2021
Pre-auth Null pointer crash in on-premise web console
The login routine of the web console in the Zoom On-Premise Meeting Connector before version 4.6.239.20200613, Zoom On-Premise Meeting Connector MMR before version 4.6.239.20200613, Zoom On-Premise Recording Connector before version 3.8.42.20200905, Zoom On-Premise Virtual Room Connector before version 4.4.6344.20200612, and Zoom On-Premise Virtual Room Connector Load Balancer before version 2.5.5492.20200616 fails to validate that a NULL byte was sent while authenticating. This could lead to a crash of the login service.
Vulnerability Analysis
CVE-2021-34418 is exploitable with local system access, and does not require authorization privileges or user interaction. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have no impact on confidentiality and integrity, and a small impact on availability.
Products Associated with CVE-2021-34418
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Affected Versions
Zoom Video Communications Inc Zoom On-Premise Meeting Connector:- Version unspecified and below 4.6.239.20200613 is affected.
- Version unspecified and below 4.6.239.20200613 is affected.
- Version unspecified and below 3.8.42.20200905 is affected.
- Version unspecified and below 4.4.6344.20200612 is affected.
- Version unspecified and below 2.5.5492.20200616 is affected.
Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.