WS_FTP Server Directory Traversal
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA.
Summary
In WS_FTP Server versions prior to 8.7.4 and 8.8.2, a directory traversal vulnerability was discovered. An attacker could leverage this vulnerability to perform file operations (delete, rename, rmdir, mkdir) on files and folders outside of their authorized WS_FTP folder path. Attackers could also escape the context of the WS_FTP Server file structure and perform the same level of operations (delete, rename, rmdir, mkdir) on file and folder locations on the underlying operating system.
Why it matters now
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
Remediation
- Fix · CNA WS_FTP Server (Progress Software Corporation) Fixed in 8.8.2, 8.7.4
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Advisory ·
Progress Software WS_FTP Server — community.progress.com/s/article/WS-FTP-Server-Critical-Vul…
7 records Highest priority Priority CRITICAL 1 CRITICAL, 2 MEDIUM, 4 LOW
Other records, highest priority first
- TI-2023-20934 WS_FTP Server Ad Hoc Transfer Module .NET Deserialization VulnerabilityPriority CRITICAL 100
- TI-2023-20935 WS_FTP Server Ad Hoc Transfer Module Reflected Cross-Site Scripting VulnerabilityPriority MEDIUM 40
- TI-2023-20937 WS_FTP Server Stored Cross-Site Scripting VulnerabilityPriority LOW 38
Timeline
- 2026-10-02 Threatist record created from CVE-2023-42657
- 2026-10-03 Alias added: GHSA-vrp3-qmw4-rx8c
References
More Progress Ws Ftp Server vulnerabilities
- TI-2023-20934 WS_FTP Server Ad Hoc Transfer Module .NET Deserialization Vulnerability KEVCVSS 3.1CRITICAL 10.0
- TI-2003-00715 Multiple buffer overflows in WS_FTP 3 and 4 allow remote authenticated users to cause a… CVSS 2.0HIGH 7.5
- TI-2006-04675 Multiple buffer overflows in Ipswitch WS_FTP Server 5.05 before Hotfix 1 allow remote… CVSS 2.0MEDIUM 6.5
- TI-2006-04816 Multiple buffer overflows in WS_FTP Server 5.05 before Hotfix 1, and possibly other… CVSS 2.0MEDIUM 6.5
- TI-2001-00976 Buffer overflows in WS_FTP 2.02 allow remote attackers to execute arbitrary code via long… CVSS 2.0HIGH 7.5
- TI-2008-00562 Buffer overflow in Ipswitch WS_FTP Server with SSH 6.1.0.0 allows remote authenticated… CVSS 2.0HIGH 9.0
Sources
- CVE-2023-42657 · CVE Program
- CVE-2023-42657 · NVD
- FIRST EPSS
- GHSA-vrp3-qmw4-rx8c · 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