Cyber Resilience

CVE-2021-46249

Medium

Published: 15 February 2022

Published
15 February 2022
Modified
21 November 2024
KEV Added
—
Patch
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CVSS Score v3.1 6.5 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
EPSS Score 0.0015 35.9th percentile
Risk Priority 13 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2021-46249 is a medium-severity Authorization Bypass Through User-Controlled Key (CWE-639) vulnerability in Scratchoauth2 Project Scratchoauth2. Its CVSS base score is 6.5 (Medium).

Operationally, ranked at the 35.9th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability details

An authorization bypass exploited by a user-controlled key in SpecificApps REST API in ScratchOAuth2 before commit d856dc704b2504cd3b92cf089fdd366dd40775d6 allows app owners to set flags that indicate whether an app is verified on their own apps.

CWE(s)
CWE-639

Related Threats

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

Affected Assets

scratchoauth2 project
scratchoauth2
≤ 2021-04-12

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