CVE-2021-34418 — MEDIUM (4.0)

Q: How severe is CVE-2021-34418?

CVE-2021-34418 has been rated MEDIUM with a CVSS base score of 4.0/10. Review the CVSS metrics above for detailed severity breakdown.

Q: Is there a patch for CVE-2021-34418?

Check the references section above for vendor advisories and patch information. Affected products include: Zoom Zoom On-Premise Meeting Connector Controller, Zoom Zoom On-Premise Meeting Connector Mmr, Zoom Zoom On-Premise Recording Connector, Zoom Zoom On-Premise Virtual Room Connector, Zoom Zoom On-Premise Virtual Room Connector Load Balancer.

Vulnerability Description

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.

CVSS Score

4.0

MEDIUM

CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

NONE

Integrity

NONE

Availability

LOW

Affected Products

Vendor	Product	Versions
Zoom	Zoom On-Premise Meeting Connector Controller	< 4.6.239.20200613
Zoom	Zoom On-Premise Meeting Connector Mmr	< 4.6.239.20200613
Zoom	Zoom On-Premise Recording Connector	< 3.8.42.20200905
Zoom	Zoom On-Premise Virtual Room Connector	< 4.4.6344.20200612
Zoom	Zoom On-Premise Virtual Room Connector Load Balancer	< 2.5.5492.20200616

Related Weaknesses (CWE)

CWE-476

References

https://explore.zoom.us/en/trust/security/security-bulletinVendor Advisory
https://explore.zoom.us/en/trust/security/security-bulletinVendor Advisory

FAQ

What is CVE-2021-34418?

CVE-2021-34418 is a vulnerability with a CVSS score of 4.0 (MEDIUM). 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 Re...

How severe is CVE-2021-34418?

CVE-2021-34418 has been rated MEDIUM with a CVSS base score of 4.0/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2021-34418?

Check the references section above for vendor advisories and patch information. Affected products include: Zoom Zoom On-Premise Meeting Connector Controller, Zoom Zoom On-Premise Meeting Connector Mmr, Zoom Zoom On-Premise Recording Connector, Zoom Zoom On-Premise Virtual Room Connector, Zoom Zoom On-Premise Virtual Room Connector Load Balancer.