Lucene search

ZscalerCVELIST:CVE-2021-26734

HistoryOct 23, 2023 - 1:18 p.m.

CVE-2021-26734 Junction Delete leading to elevation of privilege

2023-10-2313:18:36

CWE-269

Zscaler

www.cve.org

zscaler client connector

vulnerability

local adversary

delete folders

elevation of privilege

4.4 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

5.6 Medium

AI Score

Confidence

High

0.0004 Low

EPSS

Percentile

15.6%

JSON

Zscaler Client Connector Installer on Windows before version 3.4.0.124 improperly handled directory junctions during uninstallation. A local adversary may be able to delete folders in an elevated context.

CNA Affected

[
  {
    "defaultStatus": "unaffected",
    "product": "Client Connector",
    "vendor": "Zscaler",
    "versions": [
      {
        "lessThan": "3.4.0.124",
        "status": "affected",
        "version": "0",
        "versionType": "custom"
      }
    ]
  }
]

References

help.zscaler.com/zscaler-client-connector/client-connector-app-release-summary-2021

4.4 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

5.6 Medium

AI Score

Confidence

High

0.0004 Low

EPSS

Percentile

15.6%

JSON

Related for CVELIST:CVE-2021-26734