All vulnerabilities
CVE-2019-11043

PHP FastCGI Process Manager (FPM) Buffer Overflow Vulnerability

PHP FastCGI Process Manager (FPM)Runtimes & languages
Open in ThreatlineRecord JSON
CVSS
8.7High
ExploitationExploited in the wildAdded to KEV 25 Mar 2022. Known ransomware useCISA KEV
Exploit odds (EPSS)99.7%Chance of exploitation activity in the next 30 days, higher than 99.9% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed in7.1.33Also 7.2.24, 7.3.11CVE List
Federal deadline15 Apr 2022Remediation due date for US federal agenciesCISA KEV
CISA required actionApply updates per vendor instructions. CISA KEV

What fixes it

A fixed version on one release line is not the upgrade target for every line. Check your exact version and any vendor backports.

Timeline

  1. 22 Oct 2019Exploit code publicMetasploit
  2. 28 Oct 2019, 14:19 UTCPublishedCVE List
  3. 25 Mar 2022Added to CISA KEVCISA KEV

Public exploit code and templates 4

  • Exploit modulePHP-FPM Underflow RCE 22 Oct 2019Metasploit
  • Webapps exploitPHP-FPM + Nginx - Remote Code Execution 28 Oct 2019Exploit-DB
  • Remote exploitPHP-FPM - Underflow Remote Code Execution (Metasploit) 9 Mar 2020Exploit-DB
  • Scanner templatePHP-FPM Path Info Buffer Underflow - Remote Code ExecutionNuclei

Listed so defenders can prioritize. Threatline links to the source and does not host exploit code.

Description

In some versions of PHP in certain configurations of FPM setup, it is possible to cause FPM module to write past allocated buffers allowing the possibility of remote code execution.

Text from CVE List

Affected versions 3

  • PHPaffected: 7.1.x before 7.1.33CVE List
  • PHPaffected: 7.2.x before 7.2.24CVE List
  • PHPaffected: 7.3.x before 7.3.11CVE List

References 25