// For flags

CVE-2021-26736

ZApp Installer Privilege Escalation Vulnerabilities

Severity Score

7.8
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

Multiple vulnerabilities in the Zscaler Client Connector Installer and Uninstaller for Windows prior to 3.6 allowed execution of binaries from a low privileged path. A local adversary may be able to execute code with SYSTEM privileges.

Múltiples vulnerabilidades en Zscaler Client Connector Installer and Uninstaller para Windows anteriores a 3.6 permitían la ejecución de archivos binarios desde una ruta con pocos privilegios. Un adversario local puede ejecutar código con privilegios de SYSTEM.

*Credits: LMCO Red Team
CVSS Scores
Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Attack Vector
Local
Attack Complexity
High
Privileges Required
Low
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2021-02-05 CVE Reserved
  • 2023-10-23 CVE Published
  • 2023-10-27 EPSS Updated
  • 2024-08-03 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-20: Improper Input Validation
  • CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
CAPEC
  • CAPEC-234: Hijacking a privileged process
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Zscaler
Search vendor "Zscaler"
 Client Connector
Search vendor "Zscaler" for product "Client Connector"
 < 3.6
Search vendor "Zscaler" for product "Client Connector" and version " < 3.6"
windows
Affected