CVE-2020-11633 Memory corruption in n/a
A stack-based buffer overflow in the Zscaler Client Connector allows attackers to execute arbitrary code with system privileges via malicious TLS servers.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2020-11633?
CVE-2020-11633 is a critical memory corruption vulnerability in n/a, published on 15 Jul 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The Zscaler Client Connector for Windows prior to 2.1.2.74 had a stack based buffer overflow when connecting to misconfigured TLS servers. An adversary would potentially have been able to execute arbitrary code with system privileges.
Weakness: CWE-787
Which versions are affected by CVE-2020-11633?
It affects 1 product.
Products include Zscaler Client Connector.
How do I fix CVE-2020-11633?
No fix has been published for CVE-2020-11633 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2020-11633 being exploited?
There is no known exploitation of CVE-2020-11633 in the wild and no public exploit code.
Other vulnerabilities in n/a
- CVE-2024-23463 Anti-Tampering bypass via Repair App functionality
- CVE-2023-28804 Linux ZCC allows unsigned updates, allowing elevated Code Execution
- CVE-2023-28799 Open redirect in Client Connector
- CVE-2023-28800 Output encoding missing in redrurl parameter
- CVE-2024-23456 Signature validation issue leads to Anti-Tampering bypass
Sources
Also known as GHSA-4p36-pgfp-hv82.