CVE-2023-50928
Published: 22 December 2023
Summary
CVE-2023-50928 is a high-severity Improper Access Control (CWE-284) vulnerability in Amazon Awslabs Sandbox Accounts For Events. Its CVSS base score is 7.1 (High).
Operationally, exploitation aligns with the MITRE ATT&CK technique Cloud Accounts (T1078.004); ranked at the 19.6th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2023-55659
Vulnerability details
"Sandbox Accounts for Events" provides multiple, temporary AWS accounts to a number of authenticated users simultaneously via a browser-based GUI. Authenticated users could potentially claim and access empty AWS accounts by sending request payloads to the account API containing non-existent…
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event ids and self-defined budget & duration. This issue only affects cleaned AWS accounts, it is not possible to access AWS accounts in use or existing data/infrastructure. This issue has been patched in version 1.1.0.
- CWE(s)
Related Threats
MITRE ATT&CK Enterprise TechniquesAI
Why these techniques?
Vulnerability enables authenticated users to claim unauthorized empty AWS accounts with custom budgets/durations, facilitating valid cloud account usage (T1078.004), cloud account creation (T1136.003), and cloud service hijacking for adversary workloads (T1496.004).
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.
The access control policy and procedures directly mandate and enforce proper access control mechanisms across the organization.
Device lock enforces restricted access until re-authentication, directly reducing unauthorized use of active sessions.
Supervision and review of access control activities directly detects and remediates improper access configurations or usages.
Explicitly identifying and documenting actions permitted without identification or authentication enforces proper access control boundaries by defining justified exceptions.
By automatically labeling outputs with security attributes, the control supports attribute-based enforcement and reduces exploitability of improper access control weaknesses.
Associating and retaining security attributes with data directly supports enforcement of access control decisions across storage, processing, and transmission.
Requiring prior authorization for each remote access type prevents improper access control over remote connections.
Requiring authorization of wireless access before allowing connections enforces proper access control for this access method.