CVE-2023-40044

high-risk
Published 2023-09-27

In WS_FTP Server versions prior to 8.7.4 and 8.8.2, a pre-authenticated attacker could leverage a .NET deserialization vulnerability in the Ad Hoc Transfer module to execute remote commands on the underlying WS_FTP Server operating system.

Do I need to act?

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94.4% chance of exploitation in next 30 days
EPSS score — higher than 6% of all CVEs
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CISA KEV: actively exploited in the wild
On the Known Exploited Vulnerabilities catalog — federal agencies must patch
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Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
10
CVSS 10.0/10 Critical
NETWORK / LOW complexity

Affected Products (1)

Ws Ftp Server

Affected Vendors

Progress

References (17)

Exploit http://packetstormsecurity.com/files/174917/Progress-Software-WS_FTP-Unauthentic...
Third Party Advisory https://attackerkb.com/topics/bn32f9sNax/cve-2023-40044
Third Party Advisory https://censys.com/cve-2023-40044/
Vendor Advisory https://community.progress.com/s/article/WS-FTP-Server-Critical-Vulnerability-Se...
Exploit https://www.assetnote.io/resources/research/rce-in-progress-ws-ftp-ad-hoc-via-ii...
Product https://www.progress.com/ws_ftp
Broken Link https://www.rapid7.com/blog/post/2023/09/29/etr-critical-vulnerabilities-in-ws_f...
Press/Media Coverage https://www.theregister.com/2023/10/02/ws_ftp_update/
Exploit http://packetstormsecurity.com/files/174917/Progress-Software-WS_FTP-Unauthentic...
Third Party Advisory https://attackerkb.com/topics/bn32f9sNax/cve-2023-40044
Third Party Advisory https://censys.com/cve-2023-40044/
Vendor Advisory https://community.progress.com/s/article/WS-FTP-Server-Critical-Vulnerability-Se...
Exploit https://www.assetnote.io/resources/research/rce-in-progress-ws-ftp-ad-hoc-via-ii...
Product https://www.progress.com/ws_ftp
Broken Link https://www.rapid7.com/blog/post/2023/09/29/etr-critical-vulnerabilities-in-ws_f...
Press/Media Coverage https://www.theregister.com/2023/10/02/ws_ftp_update/
US Government Resource https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-...
65
/ 100
high-risk
Severity 33/34 · Critical
Exploitability 27/34 · High
Exposure 5/34 · Minimal