Risk Letters

Exploited vulnerability

CVE-2023-28434

TLP:CLEAR

MinIO Security Feature Bypass Vulnerability

MinIO contains a security feature bypass vulnerability that allows an attacker to use crafted requests to bypass metadata bucket name checking and put an object into any bucket while processing `PostPolicyBucket` to conduct privilege escalation. To carry out this attack, the attacker requires credentials with `arn:aws:s3:::*` permission, as well as enabled Console API access.

Facts

  • Vendor: MinIO
  • Product: MinIO
  • CVSS: 8.8
  • EPSS (probability of exploitation within 30 days): 7.9 %
  • On CISA's Known Exploited Vulnerabilities list since: 19 September 2023
  • First known exploitation: 19 September 2023
  • CISA's deadline for US federal agencies: 10 October 2023
  • Weakness: CWE-269
  • First seen by Risk Letters: 19 September 2023

Members see which Nordic sectors the flaw hits, and what to do about it.

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Data: NVD (public domain), CISA KEV, FIRST EPSS, MITRE ATT&CK, AlienVault OTX. NVD