CVE-2023-28432
Published: April 21, 2023
Official Description
MinIO contains a vulnerability in a cluster deployment where MinIO returns all environment variables, which allows for information disclosure.
CISA KEV Advisory
MinIO Information Disclosure Vulnerability
MinIO contains a vulnerability in a cluster deployment where MinIO returns all environment variables, which allows for information disclosure.
Apply updates per vendor instructions.
Risk Analysis
MinIO in a cluster deployment is vulnerable to information disclosure, as it returns all environment variables. The high EPSS score of 0.93931 indicates a very high likelihood of exploitation, and its presence in CISA's KEV confirms active exploitation.
This vulnerability is actively being exploited in the wild. It is remotely exploitable.
Update MinIO to a patched version to prevent the disclosure of environment variables.
Technical Analysis
CVE-2023-28432 requires local access, meaning attackers must already have a foothold on the target system.
Exploitation requires some privileges, which limits the exposure to scenarios where an attacker has already gained initial access.
CISA has added CVE-2023-28432 to the Known Exploited Vulnerabilities (KEV) catalog, confirming active exploitation in the wild. U.S. federal agencies are required to patch this within the mandated timeframe, and all organizations should treat remediation as urgent.
Exploit & PoC Resources
All References (2)
Quick Facts
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2023-28432 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts
- !CISA KEV: Federal agencies must patch per BOD 22-01 timeline
- !Active exploitation confirmed — treat as P1