Exploited vulnerability · CISA KEV

Is CVE-2023-40044 exploited? Yes: in CISA KEV since 5 Oct 2023

Gociux · Progress WS_FTP Server · data: CISA KEV, CVE record, FIRST EPSS

Yes. CVE-2023-40044, Progress WS_FTP Server Deserialization of Untrusted Data Vulnerability, is being exploited in the wild. CISA added it to its Known Exploited Vulnerabilities catalog on 5 Oct 2023, 8 days after it was published. It is known to be used in ransomware campaigns. It affects Progress WS_FTP Server. If you run it, CISA's required action is: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

What it is

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.

What to do

1. Check whether you run it. Look for WS_FTP Server in your asset inventory, including appliances and cloud images. Stack check lists every exploited Progress CVE at once.
2. Apply the fix. Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
3. If you can't patch today, take the affected service off the internet or restrict who can reach it, and check its logs for signs of compromise since 27 Sep 2023.
4. Get told next time. Email alerts when CISA adds a CVE for Progress.

References

• community.progress.com/s/article/WS-FTP-Server-Critical-Vulnerability-September-20
• nvd.nist.gov/vuln/detail/CVE-2023-40044

Sources: CISA KEV (exploitation, ransomware use, required action, due date), the CVE record (publication date, CVSS, CNA), NVD and FIRST EPSS (live score). More: all KEV additions in October 2023 · Progress scorecard · act-now radar.