CVE-2019-15107
Published: March 25, 2022
Official Description
An issue was discovered in Webmin. The parameter old in password_change.cgi contains a command injection vulnerability.
CISA KEV Advisory
Webmin Command Injection Vulnerability
An issue was discovered in Webmin. The parameter old in password_change.cgi contains a command injection vulnerability.
Apply updates per vendor instructions.
Risk Analysis
This command injection vulnerability in Webmin's password_change.cgi allows an attacker to execute arbitrary commands due to improper handling of the 'old' parameter. This could lead to full system compromise. The very high EPSS score indicates a high likelihood of exploitation, making this a critical vulnerability.
This vulnerability is actively being exploited in the wild and is listed in CISA's KEV catalog, confirming its active exploitation. As a command injection in a CGI script, it is likely remotely exploitable.
Update Webmin to a patched version. Implement strong input validation for all user-supplied data, especially in authentication-related scripts.
Technical Analysis
CVE-2019-15107 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-2019-15107 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 (1)
Quick Facts
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2019-15107 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