CVE-2023-25187
First published: Fri Jun 16 2023(Updated: )
An issue was discovered on NOKIA Airscale ASIKA Single RAN devices before 21B. Nokia Single RAN commissioning procedures do not change (factory-time installed) default SSH public/private key values that are specific to a network operator. As a result, the CSP internal BTS network SSH server (disabled by default) continues to apply the default SSH public/private key values. These keys don't give access to BTS, because service user authentication is username/password-based on top of SSH. Nokia factory installed default SSH keys are meant to be changed from operator-specific values during the BTS deployment commissioning phase. However, before the 21B release, BTS commissioning manuals did not provide instructions to change default SSH keys (to BTS operator-specific values). This leads to a possibility for malicious operations staff (inside a CSP network) to attempt MITM exploitation of BTS service user access, during the moments that SSH is enabled for Nokia service personnel to perform troubleshooting activities.
Credit: cve@mitre.org cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Nokia Asika Airscale Firmware | =19b | |
| Nokia Asika Airscale Firmware | =20a | |
| Nokia Asika Airscale Firmware | =20b | |
| Nokia Asika Airscale Firmware | =20c | |
| Nokia Asika Airscale Firmware | =21a | |
| Nokia Asika Airscale | ||
| All of | ||
| Any of | ||
| Nokia Asika Airscale Firmware | =19b | |
| Nokia Asika Airscale Firmware | =20a | |
| Nokia Asika Airscale Firmware | =20b | |
| Nokia Asika Airscale Firmware | =20c | |
| Nokia Asika Airscale Firmware | =21a | |
| Nokia Asika Airscale |
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Reference Links
Frequently Asked Questions
What is CVE-2023-25187?
CVE-2023-25187 is a vulnerability found in NOKIA Airscale ASIKA Single RAN devices before 21B where the factory-installed default SSH public/private key values specific to a network operator are not changed during commissioning.
What is the severity of CVE-2023-25187?
The severity of CVE-2023-25187 is high with a severity value of 7.
How does CVE-2023-25187 affect NOKIA Airscale ASIKA Single RAN devices?
CVE-2023-25187 affects NOKIA Airscale ASIKA Single RAN devices by exposing the CSP internal BTS network SSH server to potential unauthorized access.
Is there a fix for CVE-2023-25187?
Yes, upgrading to version 21B or a later version of NOKIA Airscale ASIKA Single RAN firmware will fix the CVE-2023-25187 vulnerability.
Where can I find more information about CVE-2023-25187?
You can find more information about CVE-2023-25187 on the official Nokia website and the Nokia Product Security Advisory page for this vulnerability.
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