Cyber Resilience

CVE-2024-23458

Zscaler Client Connector ≤ 4.2.0.190

Published
06 August 2024
Modified
07 August 2024
Patch / advisory
CVSS Score v3.1 7.3
Click a component to see what it means
Raw vectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L
EPSS Score 0.0011 2th percentile
Risk Priority 55 floored blend · peak EPSS

Summary

CVE-2024-23458 is a high-severity Origin Validation Error (CWE-346) vulnerability in Zscaler Client Connector. Its CVSS base score is 7.3 (High).

Operationally, ranked at the 2th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

OWASP Top 10 for Web (2025)

EU & UK References

Vulnerability Data

While copying individual autoupdater log files, reparse point check was missing which could result into crafted attacks, potentially leading to a local privilege escalation. This issue affects Zscaler Client Connector on Windows <4.2.0.190.

CWE(s)

Related Threats

CVEs Like This One

CVE-2023-28795Same product: Zscaler Client Connector
CVE-2023-28794Same product: Zscaler Client Connector
CVE-2023-41972Same product: Zscaler Client Connector
CVE-2024-23459Same product: Zscaler Client Connector
CVE-2024-23460Same product: Zscaler Client Connector
CVE-2024-23482Same product: Zscaler Client Connector
CVE-2024-23461Same product: Zscaler Client Connector
CVE-2026-22569Same product: Zscaler Client Connector
CVE-2023-28806Same product: Zscaler Client Connector
CVE-2023-28799Same product: Zscaler Client Connector

Affected Assets

zscaler
client connector
≤ 4.2.0.190

Mitigating Controls

Control response

Prevent
Stop it (NIST 800-53)

Detect
Catch it (NIST detect / respond)

Harden
Shrink the surface (DISA STIG)
  • 3 hardening rules · 1 OS baseline
Validate
Prove the fix (OWASP ASVS)

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

addresses: CWE-346

Requires unique identification of the service before communications, addressing failures to validate the origin of the interaction.

addresses: CWE-346

Trusted path establishment enforces validation that the communication originates from and reaches only the intended trusted system components.

addresses: CWE-346

Enforces validation of the true origin of DNS responses via signatures and chain-of-trust mechanisms.

addresses: CWE-346

Enforces origin validation of name/address data, eliminating reliance on unverified or impersonated DNS sources.

addresses: CWE-346

Mandates origin validation so that only legitimate endpoints can continue the authenticated session.

Mitigating Controls (NIST CSF 2.0) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.

PR.AA-03 mostly match
prevents

Authentication directly verifies the source of users/services/hardware, mitigating origin validation failures.

PR.AA-04 mostly match
prevents

Verifying identity assertions enforces origin validation for conveyed claims.

ID.AM-03 partial match
prevents

Documenting authorized flows supports origin validation by defining expected sources.

PR.IR-01 partial match
prevents

Protecting networks from unauthorized access requires origin checks on communication sources.

Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.

mitigates

Network security controls enforce origin validation at network boundaries.

mitigates

Security of network services includes validating the authenticity of service endpoints.

mitigates

Network segregation reduces exposure but does not directly validate origins.

prevents

Application security requirements explicitly call for origin validation of inputs and communications.

prevents

Secure architecture principles encourage origin checks but do not mandate them.

prevents

Secure coding practices include implementing proper origin validation to prevent spoofing.

References