CVE-2020-11635 Privilege escalation in Zscaler Client Connector for Windows

What is CVE-2020-11635?

CVE-2020-11635 is a high-severity vulnerability in Zscaler Client Connector for Windows, published on 16 Feb 2021. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

The Zscaler Client Connector prior to 3.1.0 did not sufficiently validate RPC clients, which allows a local adversary to execute code with system privileges or perform limited actions for which they did not have privileges.

Which versions are affected by CVE-2020-11635?

It affects 1 product.

Products include Zscaler Client Connector.

How do I fix CVE-2020-11635?

No fix has been published for CVE-2020-11635 yet. Limit exposure of the affected software until one is available.

Is CVE-2020-11635 being exploited?

There is no known exploitation of CVE-2020-11635 in the wild and no public exploit code.

Other vulnerabilities in Zscaler Client Connector for Windows

• 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-6xqj-rg38-r6rr.