Cyber Resilience

CVE-2024-46937

High

Published: 16 September 2024

Published
16 September 2024
Modified
24 October 2024
KEV Added
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Patch
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CVSS Score v3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
EPSS Score 0.0049 66.0th percentile
Risk Priority 15 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2024-46937 is a high-severity Authorization Bypass Through User-Controlled Key (CWE-639) vulnerability in Mfasoft Secure Authentication Server. Its CVSS base score is 7.5 (High).

Operationally, exploitation aligns with the MITRE ATT&CK technique Account Discovery (T1087); ranked in the top 34.0% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability details

An improper access control (IDOR) vulnerability in the /api-selfportal/get-info-token-properties endpoint in MFASOFT Secure Authentication Server (SAS) 1.8.x through 1.9.x before 1.9.040924 allows remote attackers gain access to user tokens without authentication. The is a brute-force attack on the serial parameter…

more

by number identifier: GA00001, GA00002, GA00003, etc.

CWE(s)
CWE-639

Related Threats

MITRE ATT&CK Enterprise TechniquesAI

T1087 Account Discovery Discovery
Adversaries may attempt to get a listing of valid accounts, usernames, or email addresses on a system or within a compromised environment.
attack.mitre.org →
T1110 Brute Force Credential Access
Adversaries may use brute force techniques to gain access to accounts when passwords are unknown or when password hashes are obtained.
attack.mitre.org →
Why these techniques?

IDOR vulnerability allows unauthenticated brute-force (T1110) of sequential serial parameters (e.g., GA00001) to enumerate and access other users' token properties, facilitating account discovery (T1087).

Affected Assets

mfasoft
secure authentication server
1.8.0 — 1.9.040924

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.

AC-24 Access Control Decisions
addresses: CWE-639

Per-request decision making makes it harder to bypass authorization using user-controlled keys without proper validation in the decision process.

AC-3 Access Enforcement
addresses: CWE-639

Consistent enforcement of approved authorizations makes bypassing via user-controlled keys ineffective.

References