CVE-2023-28805 ZCC on Linux privilege escalation

What is CVE-2023-28805?

CVE-2023-28805 is a medium-severity vulnerability in Zscaler Client Connector, published on 23 Oct 2023. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

An Improper Input Validation vulnerability in Zscaler Client Connector on Linux allows Privilege Escalation. This issue affects Client Connector: before 1.4.0.105

Weakness: CWE-78

Which versions are affected by CVE-2023-28805?

It affects 1 product.

Products include Zscaler Client Connector.

How do I fix CVE-2023-28805?

No fix has been published for CVE-2023-28805 yet. Limit exposure of the affected software until one is available.

Is CVE-2023-28805 being exploited?

There is no known exploitation of CVE-2023-28805 in the wild and no public exploit code.

Other vulnerabilities in Zscaler Client Connector

• CVE-2020-11633 Memory corruption in n/a Critical 9.8
• CVE-2024-23463 Anti-Tampering bypass via Repair App functionality High 8.8
• CVE-2023-28804 Linux ZCC allows unsigned updates, allowing elevated Code Execution High 8.2
• CVE-2023-28799 Open redirect in Client Connector High 8.2
• CVE-2023-28800 Output encoding missing in redrurl parameter High 8.1

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-5f5r-qwxj-xhxq.