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.
Published 2023-06-16 20:15:09
Updated 2024-12-12 21:15:07
Source MITRE
View at NVD,   CVE.org

Products affected by CVE-2023-25187

Exploit prediction scoring system (EPSS) score for CVE-2023-25187

0.11%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 45 %
Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2023-25187

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
6.3
MEDIUM CVSS:3.1/AV:L/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:H
0.3
5.9
MITRE
7.0
HIGH CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
1.0
5.9
NIST

CWE ids for CVE-2023-25187

  • The product contains hard-coded credentials, such as a password or cryptographic key.
    Assigned by:
    • 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary)
    • nvd@nist.gov (Primary)

References for CVE-2023-25187

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