Lucene search

ZoomCVE-2021-33907

HistorySep 27, 2021 - 2:15 p.m.

CVE-2021-33907

2021-09-2714:15:08

CWE-295

Zoom

web.nvd.nist.gov

zoom

windows

cve-2021-33907

zoom client

remote code execution

certificate validation

update vulnerability

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

AV:N/AC:L/Au:N/C:C/I:C/A:C

CVSS3

9.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

AI Score

9.5

Confidence

High

EPSS

0.004

Percentile

74.9%

JSON

The Zoom Client for Meetings for Windows in all versions before 5.3.0 fails to properly validate the certificate information used to sign .msi files when performing an update of the client. This could lead to remote code execution in an elevated privileged context.

Affected configurations

Nvd

Node

zoommeetingsRange<5.3.0windows

VendorProductVersionCPE
zoommeetings*cpe:2.3:a:zoom:meetings:*:*:*:*:*:windows:*:*

Vendor	Product	Version	CPE
zoom	meetings	*	cpe:2.3:a:zoom:meetings::::::windows::*

CNA Affected

[
  {
    "product": "Zoom Client for Meetings for Windows",
    "vendor": "n/a",
    "versions": [
      {
        "status": "affected",
        "version": "All versions of the Zoom Client for Meetings for Windows before version 5.3.0"
      }
    ]
  }
]

References

explore.zoom.us/en/trust/security/security-bulletin/

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

AV:N/AC:L/Au:N/C:C/I:C/A:C

CVSS3

9.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

AI Score

9.5

Confidence

High

EPSS

0.004

Percentile

74.9%

JSON

Related for CVE-2021-33907