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cveZoomCVE-2021-34408
HistorySep 27, 2021 - 2:15 p.m.

CVE-2021-34408

2021-09-2714:15:08
CWE-59
Zoom
web.nvd.nist.gov
35
zoom
client
windows
privilege escalation
cve-2021-34408
security vulnerability

CVSS2

4.6

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

CVSS3

7.8

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

AI Score

7.6

Confidence

High

EPSS

0

Percentile

12.6%

The Zoom Client for Meetings for Windows in all versions before version 5.3.2 writes log files to a user writable directory as a privileged user during the installation or update of the client. This could allow for potential privilege escalation if a link was created between the user writable directory used and a non-user writable directory.

Affected configurations

Nvd
Node
zoommeetingsRange<5.3.2windows
VendorProductVersionCPE
zoommeetings*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 5.3.2"
      }
    ]
  }
]

CVSS2

4.6

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

CVSS3

7.8

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

AI Score

7.6

Confidence

High

EPSS

0

Percentile

12.6%