All vulnerabilities
CVE-2023-40044

Progress WS_FTP Server Deserialization of Untrusted Data Vulnerability

Progress WS_FTP Server
Open in ThreatlineRecord JSON
CVSS
10.0Critical
ExploitationExploited in the wildAdded to KEV 5 Oct 2023. Known ransomware useCISA KEV
Exploit odds (EPSS)90.4%Chance of exploitation activity in the next 30 days, higher than 99% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed in8.8.2Also 8.7.4CVE List
Federal deadline26 Oct 2023Remediation due date for US federal agenciesCISA KEV
CISA required actionApply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable. 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. 27 Sep 2023Exploit code publicMetasploit
  2. 27 Sep 2023, 14:48 UTCPublishedCVE List
  3. 5 Oct 2023Added to CISA KEVCISA KEV

Public exploit code and templates 2

  • Exploit moduleProgress Software WS_FTP Unauthenticated Remote Code Execution 27 Sep 2023Metasploit
  • Scanner templateWS_FTP Server - Insecure DeserializationNuclei

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

Description

Progress WS_FTP Server contains a deserialization of untrusted data vulnerability in the Ad Hoc Transfer module that allows an authenticated attacker to execute remote commands on the underlying operating system.

Text from CVE List

Affected versions 2

  • WS_FTP Serveraffected: 8.8.0 before 8.8.2CVE List
  • WS_FTP Serveraffected: 8.7.0 before 8.7.4CVE List

References 9