Linux ZCC allows unsigned updates, allowing elevated Code Execution
CVE-2023-28804

8.2HIGH

Key Information:

Vendor

Zscaler

Status
Client Connector
Vendor
CVE Published:
23 October 2023

What is CVE-2023-28804?

A security flaw in the Zscaler Client Connector for Linux permits an attacker to replace binaries due to improper verification of cryptographic signatures. This vulnerability affects versions prior to 1.4.0.105, potentially allowing unauthorized modifications and increasing the risk of malicious software execution. Ensuring timely updates is critical for maintaining system integrity and security.

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Deploy the Patch

Affected Version(s)

Client Connector 0 < 1.4.0.105

References

https://help.zscaler.com/client-connector/client-connecto...

CVSS V3.1

Score:
8.2
Severity:
HIGH
Confidentiality:
High
Integrity:
Low
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Tesla Red Team
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