CVE-2023-2270 Local privilege escalation

What is CVE-2023-2270?

CVE-2023-2270 is a high-severity path traversal vulnerability in Netskope Client, published on 15 Jun 2023. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

The Netskope client service running with NT\SYSTEM privileges accepts network connections from localhost to start various services and execute commands. The connection handling function of Netskope client before R100 in this service utilized a relative path to download and unzip configuration files on the machine. This relative path provided a way for local users to write arbitrary files at a location which is accessible to only higher privileged users. This can be exploited by local users to execute code with NT\SYSTEM privileges on the end machine.

Weakness: CWE-22

Which versions are affected by CVE-2023-2270?

It affects 1 product.

Products include Netskope Netskope.

How do I fix CVE-2023-2270?

No fix has been published for CVE-2023-2270 yet. Limit exposure of the affected software until one is available.

Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.

Is CVE-2023-2270 being exploited?

There is no known exploitation of CVE-2023-2270 in the wild and no public exploit code.

Other vulnerabilities in Netskope Client

• CVE-2020-24576 Privilege escalation in n/a High 8.8
• CVE-2024-7401 Client Enrollment Process Bypass High 8.5
• CVE-2021-44862 Sensitive Information store in NSClient logs High 8.4
• CVE-2021-41388 Privilege escalation in n/a High 7.8
• CVE-2020-28845 Code injection in n/a High 7.8

Sources

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

Also known as GHSA-v8xv-w9j7-9fm9.