CVE-2023-27267
Published: 11 April 2023
Summary
CVE-2023-27267 is a critical-severity Missing Authentication for Critical Function (CWE-306) vulnerability in Sap Diagnostics Agent. Its CVSS base score is 9.0 (Critical).
Operationally, ranked in the top 14.5% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.
Deeper analysis
The vulnerability CVE-2023-27267 affects the OSCommand Bridge component in SAP Diagnostics Agent version 720. It stems from missing authentication combined with insufficient input validation, corresponding to CWE-306, and carries a CVSS 3.1 score of 9.0 reflecting network attack vector, high complexity, no required privileges or user interaction, and changed scope with high impact on confidentiality, integrity, and availability.
An attacker possessing deep knowledge of the system can exploit the flaw to execute arbitrary scripts across all connected Diagnostics Agents, resulting in complete compromise of the affected systems' confidentiality, integrity, and availability.
SAP security notes 3305369 and the associated support documentation provide the primary references for this issue. The EPSS score reached a peak of 0.0841 before receding to its current value of 0.0242.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2023-31045
Vulnerability details
Due to missing authentication and insufficient input validation, the OSCommand Bridge of SAP Diagnostics Agent - version 720, allows an attacker with deep knowledge of the system to execute scripts on all connected Diagnostics Agents. On successful exploitation, the attacker…
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can completely compromise confidentiality, integrity and availability of the system.
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
Mitigating Controls
Likely Mitigating Controls AI
Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.
Requires established identification and authentication to unlock, mitigating missing authentication for continued system access.
Requiring identification and rationale for actions allowed without authentication ensures critical functions are not left unprotected by forcing review of authentication requirements.
Authorizing mobile device connections to organizational systems ensures authentication is performed for this critical access function.
Guarantees critical functions are protected by mandatory invocation of the access control mechanism.
Auditing sessions makes it possible to detect access to critical functions without required authentication.
The assessment process confirms authentication is present and effective for critical functions, preventing exploitation from missing authentication.
Certification assesses that critical functions have required authentication controls in place.
Disabling non-essential functions and services eliminates the need to secure them, reducing exposure from missing authentication on unnecessary components.