CVE-2023-20252
Published: 27 September 2023
Summary
CVE-2023-20252 is a critical-severity Missing Authorization (CWE-862) vulnerability in Cisco Catalyst Sd-Wan Manager. Its CVSS base score is 9.8 (Critical).
Operationally, ranked in the top 22.6% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2023-24431
Vulnerability details
A vulnerability in the Security Assertion Markup Language (SAML) APIs of Cisco Catalyst SD-WAN Manager Software could allow an unauthenticated, remote attacker to gain unauthorized access to the application as an arbitrary user. This vulnerability is due to improper authentication…
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checks for SAML APIs. An attacker could exploit this vulnerability by sending requests directly to the SAML API. A successful exploit could allow the attacker to generate an authorization token sufficient to gain access to the application.
- 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.
Session content review can reveal authentication bypasses or failures in session establishment.
Assessments check authentication mechanisms for correct implementation and effectiveness, reducing successful authentication bypass attempts.
Identity providers centralize and enforce authentication mechanisms, reducing improper authentication.
Requires explicit authorization before any identifier can be assigned, preventing missing authorization.
Personnel screening, identity verification, and access-agreement requirements support reliable authentication and reduce authentication bypass opportunities.
Requiring explicit security roles and risk integration in the SDLC forces authentication mechanisms to be planned, documented, and validated instead of omitted or weakly implemented.
Decoy authentication surfaces detect bypass attempts and deflect real credential attacks through observable malicious interactions.
Requiring an access control policy ensures authorization checks are defined and applied for critical functions.