Multi-Factor Authentication Bypass in Progress WS_FTP Server
Priority LOW 31CWE-303Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- High
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA.
Summary
In WS_FTP Server versions before 8.8.9 (2022.0.9), an Incorrect Implementation of Authentication Algorithm in the Web Transfer Module allows users to skip the second-factor verification and log in with username and password only.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00415 36th percentileScored 2026-11-07
Fix Fixed WS_FTP Server (Progress Software Corporation): 8.8.9
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Progress | WS_FTP Server | before 8.8.9 | 8.8.9 | Patch available | CNA |
- WS_FTP Server VendorProgress Affected before 8.8.9 Fixed in 8.8.9 Patch available CNA
CPE names CISA-ADP · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:progress_software:ws_ftp_server:*:*:*:*:*:*:*:* | — | — | — |
- cpe:2.3:a:progress_software:ws_ftp_server:*:*:*:*:*:*:*:* Versions — — ·—
Remediation
- Fix · CNA WS_FTP Server (Progress Software Corporation) Fixed in 8.8.9
Timeline
- 2026-10-02 Threatist record created from CVE-2024-9999
- 2026-10-03 Alias added: GHSA-fgq7-v63g-3f6x
References
More Progress vulnerabilities
- TI-2026-07083 Command injection in Progress LoadMaster KEVCVSS 3.1CRITICAL 9.8
- TI-2024-06182 WhatsUp Gold HasErrors SQL Injection Authentication Bypass Vulnerability KEVCVSS 3.1CRITICAL 9.8
- TI-2024-04541 WhatsUp Gold GetFileWithoutZip Directory Traversal Remote Code Execution Vulnerability KEVCVSS 3.1CRITICAL 9.8
- TI-2024-04060 Registration Authentication Bypass Vulnerability KEVCVSS 3.1CRITICAL 9.8
- TI-2024-01127 LoadMaster Pre-Authenticated OS Command Injection KEVCVSS 3.1CRITICAL 10.0
- TI-2023-20934 WS_FTP Server Ad Hoc Transfer Module .NET Deserialization Vulnerability KEVCVSS 3.1CRITICAL 10.0
Sources
- CVE-2024-9999 · CVE Program
- CVE-2024-9999 · NVD
- FIRST EPSS
- GHSA-fgq7-v63g-3f6x · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences