CVE-2024-23460

Local code execution via unsigned updater installer

Published Aug 6, 2024 · Updated Aug 6, 2024

Improper signature verification in Zscaler Client Connector before 4.2 allows local users to execute arbitrary code through its macOS updater. The Zscaler Updater executes a supplied installer without first validating its digital signature. Exploitation requires low privileges and access to replace or supply the installer, after which untrusted code runs in the updater's execution context.

CVSS severity6.4
Medium
EPSS probability0.13%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper signature verification in Zscaler Client Connector before 4.2 allows local users to execute arbitrary code through its macOS updater. The Zscaler Updater executes a supplied installer without first validating its digital signature. Exploitation requires low privileges and access to replace or supply the installer, after which untrusted code runs in the updater's execution context.

The record

CVE
CVE-2024-23460
Published
Aug 6, 2024
Updated
Aug 6, 2024
Vendor
Zscaler
Product
Zscaler Client Connector
Classifications
CWE-347, CAPEC-558, T1553.002
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 6, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 6, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <4.2

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Zscaler · Zscaler Client Connectorversion=0 <4.2

Published CVSS scores

7.8NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
6.4ZscalerCVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-347Improper Verification of Cryptographic Signature
CAPEC-558Replace Trusted Executable
T1553.002Subvert Trust Controls: Code Signing

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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