CVE-2023-0440
Published: 23 January 2023
Summary
CVE-2023-0440 is a medium-severity Observable Discrepancy (CWE-203) vulnerability in Healthchecks Healthchecks. Its CVSS base score is 5.3 (Medium).
Operationally, ranked at the 40.0th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2023-12494
Vulnerability details
Observable Discrepancy in GitHub repository healthchecks/healthchecks prior to v2.6.
- 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.
Misdirection can normalize or falsify responses to eliminate observable discrepancies that aid reconnaissance.
Observable discrepancies in system behavior can be modulated to create covert storage or timing channels; the required analysis detects and constrains such avenues.
Prevents attackers from using observable differences in error responses to infer internal system details or state.