CVE-2023-21719
Published: 24 January 2023
Summary
CVE-2023-21719 is a medium-severity Incorrect Authorization (CWE-863) vulnerability in Microsoft Edge Chromium. Its CVSS base score is 6.5 (Medium).
Operationally, ranked in the top 6.2% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.
Deeper analysis
Microsoft Edge (Chromium-based) is affected by CVE-2023-21719, a security feature bypass vulnerability published on 2023-01-24 and assigned a CVSS 3.1 score of 6.5 with the vector AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N. The flaw is categorized under CWE-863 for incorrect authorization.
An unauthenticated remote attacker can trigger the bypass with low attack complexity and only user interaction required, resulting in high confidentiality impact without affecting integrity or availability.
Microsoft Security Response Center advisories and the associated Gentoo Linux security advisory detail mitigation steps and are published at the referenced URLs.
The EPSS score remains flat at a peak and current value of 0.1143.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2023-25886
Vulnerability details
Microsoft Edge (Chromium-based) Security Feature Bypass Vulnerability
- 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.
Periodic review and update of procedures reduces incorrect authorization implementations over time.
Supervision identifies cases where authorization logic incorrectly permits unauthorized actions.
Defining permitted attribute values and auditing modifications reduces the chance of incorrect authorization outcomes due to tampered or missing labels.
The authorization process and usage restrictions help prevent incorrect authorization for remote access types.
Establishing configuration and connection requirements helps ensure correct rather than incorrect authorization for wireless access.
Establishing connection authorization processes for mobile devices helps ensure authorization decisions are correctly implemented rather than incorrect.
Monitoring account use, notifying on changes, and reviewing accounts for compliance corrects incorrect authorization assignments.
Ensures authorization decisions for external system use are correctly implemented and enforced.