CVE-2009-1031

Serv-U File Server 7.0.0.1-7.4.0.1 - Unauthenticated Directory Traversal via FTP MKD Command

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2009-1031. PoCs published by Jonathan Salwan.

AI-analyzed exploit summary This exploit leverages a directory traversal vulnerability in FTP Serv-U via the MKD command, allowing an attacker to escape the FTP root and create arbitrary directories on the system. It requires valid FTP credentials and sends a crafted MKD request with a traversal sequence.

Description

Directory traversal vulnerability in the FTP server in Rhino Software Serv-U File Server 7.0.0.1 through 7.4.0.1 allows remote attackers to create arbitrary directories via a \.. (backslash dot dot) in an MKD request.

Exploits (1)

exploitdb WORKING POC VERIFIED
by Jonathan Salwan · perlremotewindows
https://www.exploit-db.com/exploits/8211

This exploit leverages a directory traversal vulnerability in FTP Serv-U via the MKD command, allowing an attacker to escape the FTP root and create arbitrary directories on the system. It requires valid FTP credentials and sends a crafted MKD request with a traversal sequence.

Classification
Working Poc 95%
Attack Type
Other
Complexity
Trivial
Reliability
Reliable
Target: FTP Serv-U v7.4.0.1
Auth required
Prerequisites: Valid FTP credentials · Network access to the target FTP server
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (6)

Core 6
Core References
Exploit, Third Party Advisory exploit x_refsource_exploit-db
https://www.exploit-db.com/exploits/8211
Vendor Advisory third-party-advisory x_refsource_secunia
http://secunia.com/advisories/34329
Third Party Advisory, VDB Entry vdb-entry x_refsource_osvdb
http://osvdb.org/52773
Vendor Advisory vdb-entry x_refsource_vupen
http://www.vupen.com/english/advisories/2009/0738
Third Party Advisory, VDB Entry vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/34125
Third Party Advisory, VDB Entry vdb-entry x_refsource_xf
https://exchange.xforce.ibmcloud.com/vulnerabilities/49258

Scores

EPSS 0.1115
EPSS Percentile 95.4%

Details

CWE
CWE-22
Status published
Products (14)
solarwinds/serv-u_file_server 7.0.0.1
solarwinds/serv-u_file_server 7.0.0.2
solarwinds/serv-u_file_server 7.0.0.3
solarwinds/serv-u_file_server 7.0.0.4
solarwinds/serv-u_file_server 7.1.0.0
solarwinds/serv-u_file_server 7.1.0.1
solarwinds/serv-u_file_server 7.1.0.2
solarwinds/serv-u_file_server 7.2.0.0
solarwinds/serv-u_file_server 7.2.0.1
solarwinds/serv-u_file_server 7.3.0.0
... and 4 more
Published Mar 20, 2009
Tracked Since Feb 18, 2026