Vendor
Zscaler
53 known vulnerabilities.
Products
21 results · Clear filters · Feed
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Medium 4.6
HMAC Confirmation Token Unbinding in zscaler-mcp-server
Zscaler MCP Server versions 0.7.0 and 0.7.1 has an issue where HMAC confirmation tokens were not bound to the target resource identifier, allowing an MCP client or agent to replay a token generated for one resource to affect another resource of the same type.…
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Medium 4.4
File Type Control rule bypass
A file type attribution issue in Zscaler Internet Access File Type Control evaluation rules may allow improper evaluation of File Type Control policies in rare circumstances.
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Medium 5.4
Incorrect startup configuration in ZCC
An incorrect startup configuration of affected versions of Zscaler Client Connector on Windows may cause a limited amount of traffic from being inspected under rare circumstances.
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Medium 5.5
Unauthorized information retrieval in ZIA Admin UI
Improper neutralization of special elements in user-supplied input within the ZIA Admin UI could allow an authenticated administrator to access or retrieve unauthorized internal information in rare conditions.
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Medium 5.2
Health check port on ZCC allows tunnel bypass
A health check port on Zscaler Client Connector on Windows, versions 4.6 < 4.6.0.216 and 4.7 < 4.7.0.47, which under specific circumstances was not released after use, allowed traffic to potentially bypass ZCC forwarding controls.
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Medium 5.7
Signature validation error in DLL allows disabling anti-tampering protection
An Improper Validation of signature in Zscaler Client Connector on Windows allows an authenticated user to disable anti-tampering. This issue affects Client Connector on Windows <4.2.0.190.
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Medium 6.4
Incorrect signature validation of package
The Zscaler Updater process does not validate the digital signature of the installer before execution, allowing arbitrary code to be locally executed. This affects Zscaler Client Connector on MacOS <4.2.
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Medium 4.2
ZCC macOS Upgrade ZIP Bomb DoS
An Improper Validation of Integrity Check Value vulnerability in Zscaler Client Connector on MacOS during the upgrade process may allow a Local Execution of Code.This issue affects Client Connector on MacOS: before 3.4.
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Medium 5.3
Windows ZCC Upgrade DoS And Privilege Escalation Through RPC Control
An Improper Link Resolution Before File Access ('Link Following') vulnerability in Zscaler Client Connector on Windows allows a system file to be overwritten.This issue affects Client Connector on Windows: before 3.7.
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Medium 6.0
Repair App local code execution with arbitrary privileges
An Improper Validation of Integrity Check Value vulnerability in Zscaler Client Connector on Windows during the Repair App functionality may allow Local Execution of Code.This issue affects Client Connector on Windows: before 4.1.0.62.
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Medium 6.5
Out-of-bounds write to heap in pacparser
An out-of-bounds write to heap in the pacparser library on Zscaler Client Connector on Mac may lead to arbitrary code execution.
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Medium 5.1
Bypass of ZIA domain fronting detection module through evasion technique
In Zscaler Internet Access (ZIA) a mismatch between Connect Host and Client Hello's Server Name Indication (SNI) enables attackers to evade network security controls by hiding their communications within legitimate traffic.
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Medium 4.9
Disable Zscaler using machine tunnel restart
An Improper Validation of Integrity Check Value in Zscaler Client Connector on Windows allows an authenticated user to disable ZIA/ZPA by interrupting the service restart from Zscaler Diagnostics. This issue affects Client Connector: before 4.2.0.149.
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Medium 4.3
PAC Files Exposed to Internet Websites
Origin Validation Error vulnerability in Zscaler Client Connector on Linux allows Privilege Abuse. This issue affects Zscaler Client Connector for Linux: before 1.3.1.6.
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Medium 6.7
ZCC on Linux privilege escalation
An Improper Input Validation vulnerability in Zscaler Client Connector on Linux allows Privilege Escalation. This issue affects Client Connector: before 1.4.0.105
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Medium 5.9
Traffic being bypassed by ZCC by configuring synthetic IP range as local network
An authentication bypass by spoofing of a device with a synthetic IP address is possible in Zscaler Client Connector on Windows, allowing a functionality bypass. This issue affects Client Connector: before 3.9.
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Medium 6.3
LPE using arbitrary file delete with Symlinks
Zscaler Client Connector for Windows before 4.1 writes/deletes a configuration file inside specific folders on the disk. A malicious user can replace the folder and execute code as a privileged user.
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Medium 5.5
Privilege Escalation Using PID Reuse in ZCC macOS
The Zscaler Client Connector for macOS prior to 3.6 did not sufficiently validate RPC clients. A local adversary without sufficient privileges may be able to shutdown the Zscaler tunnel by exploiting a race condition.
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Medium 6.7
ZApp Installer Privilege Escalation Vulnerabilities
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.
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Medium 6.7
Untrusted Search Path While Executing REG DELETE by Uninstaller
The Zscaler Client Connector Installer and Unsintallers for Windows prior to 3.6 had an unquoted search path vulnerability. A local adversary may be able to execute code with SYSTEM privileges.
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Medium 4.4
Junction Delete leading to elevation of privilege
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.