CVE-2019-15107KEV · OVERDUECWE-78command-injection

Webmin Command Injection Vulnerability

Critical · published August 16, 2019

Patch now

Confirmed exploited, and the score agrees

CVSS calls it critical at 9.8. It is confirmed in active exploitation. It sits in the 100.0th percentile for exploit probability.

1653
days past CISA
deadline
CVSS v3.1
9.8
EPSS
100%
Percentile
100.0
In the wild
Confirmed
What it is

🚨 A command injection vulnerability lurks in Webmin <=1.920, hiding in the password-change process — and it’s as dangerous as it sounds! 🔥 Think of this like a restaurant where a disgruntled customer can sneak a note to the chef through the order window and request something wild, like adding extra ingredients that shouldn’t be there. This vulnerability lets attackers slip commands into the server without anyone noticing! This flaw could allow an attacker to execute arbitrary commands on the server, leading to absolutely devastating consequences, like data breaches or service disruptions. If exploited, they could take complete control over the server, putting sensitive information at serious risk! 😱

Put simply

Think of this like a restaurant where a disgruntled customer can sneak a note to the chef through the order window and request something wild, like adding extra ingredients that shouldn’t be there. This vulnerability lets attackers slip commands into the server without anyone noticing! The command injection vulnerability arises from the 'old' parameter in the password_change.cgi script, which fails to properly sanitize input, allowing attackers to execute malicious commands remotely.

What to do

This flaw could allow an attacker to execute arbitrary commands on the server, leading to absolutely devastating consequences, like data breaches or service disruptions. If exploited, they could take complete control over the server, putting sensitive information at serious risk! 😱 Update Webmin to version 1.921 or later immediately to patch this vulnerability. Additionally, conduct a review of server access logs and configurations to ensure no unauthorized changes have been made. Implement web application firewalls to help catch any malicious input attempts in the future. You've got this! By updating and tightening security, you can shield your server from this threat and maintain your superhero status in the cybersecurity world! 🦸‍♂️

The record
Technical detail
CVSS v3.1
9.8 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.99710 · 100.0th percentile
Weakness
CWE-78 · Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Published
2019-08-16T07:15Z
KEV added
2022-03-25 · due 2022-04-15
Affected products (1)
ProductVersionsFixed in
webmin/webmin≤ 1.920—
References (17)
http://packetstormsecurity.com/files/154141/Webmin-1.920-Remote-Command-Execution.html · [email protected]http://packetstormsecurity.com/files/154141/Webmin-Remote-Comman-Execution.html · [email protected]http://packetstormsecurity.com/files/154197/Webmin-1.920-password_change.cgi-Backdoor.html · [email protected]http://packetstormsecurity.com/files/154485/Webmin-1.920-Remote-Code-Execution.html · [email protected]http://www.pentest.com.tr/exploits/DEFCON-Webmin-1920-Unauthenticated-Remote-Command-Execution.html · [email protected]http://www.webmin.com/security.html · [email protected]https://attackerkb.com/topics/hxx3zmiCkR/webmin-password-change-cgi-command-injection · [email protected]https://www.exploit-db.com/exploits/47230 · [email protected]http://packetstormsecurity.com/files/154141/Webmin-1.920-Remote-Command-Execution.html · af854a3a-2127-422b-91ae-364da2661108http://packetstormsecurity.com/files/154141/Webmin-Remote-Comman-Execution.html · af854a3a-2127-422b-91ae-364da2661108http://packetstormsecurity.com/files/154197/Webmin-1.920-password_change.cgi-Backdoor.html · af854a3a-2127-422b-91ae-364da2661108http://packetstormsecurity.com/files/154485/Webmin-1.920-Remote-Code-Execution.html · af854a3a-2127-422b-91ae-364da2661108http://www.pentest.com.tr/exploits/DEFCON-Webmin-1920-Unauthenticated-Remote-Command-Execution.html · af854a3a-2127-422b-91ae-364da2661108http://www.webmin.com/security.html · af854a3a-2127-422b-91ae-364da2661108https://attackerkb.com/topics/hxx3zmiCkR/webmin-password-change-cgi-command-injection · af854a3a-2127-422b-91ae-364da2661108https://www.exploit-db.com/exploits/47230 · af854a3a-2127-422b-91ae-364da2661108https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2019-15107 · 134c704f-9b21-4f2e-91b3-4a467353bcc0
EPSS history
Timeline
  • 25 MAR 00:00Z
    Added to CISA KEV — remediate by Apr 15
    kev
  • 16 AUG 02:44Z
    An issue was discovered in Webmin <=1.920
    cvelistv5