Local privilege escalation in Netskope Client
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA.
Summary
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Netskope | Netskope Client | 100;0 | — | No fix listed | CNA |
- Netskope Client VendorNetskope Affected 100;0 Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2023-2270
- 2026-10-03 Alias added: GHSA-v8xv-w9j7-9fm9
References
More Netskope vulnerabilities
- TI-2020-15056 Netskope Client through 77 allows low-privileged users to elevate their privileges to NT AUTHORITY\SYSTEM. CVSS 3.1HIGH 8.8
- TI-2024-06860 Client Enrollment Process Bypass CVSS 4.0HIGH 8.5
- TI-2023-04599 Local privilege escalation in Netskope Client CVSS 3.1HIGH 8.8
- TI-2021-20302 Sensitive Information store in NSClient logs CVSS 3.1HIGH 8.4
- TI-2020-17407 A CSV injection vulnerability in the Admin portal for Netskope 75.0 allows an… CVSS 3.1HIGH 7.8
- TI-2019-09019 Netskope client command injections vulnerability CVSS 3.1HIGH 7.8
Sources
- CVE-2023-2270 · CVE Program
- CVE-2023-2270 · NVD
- FIRST EPSS
- GHSA-v8xv-w9j7-9fm9 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences