Leapware LeapFTP 2.7.3.600 PASV Request IP address memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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7.0$0-$5k0.00

Summaryinfo

A vulnerability classified as critical was found in Leapware LeapFTP 2.7.3.600. This issue affects some unknown processing of the component PASV Request Handler. The manipulation of the argument IP address results in memory corruption. This vulnerability is identified as CVE-2003-0558. Additionally, an exploit exists. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in Leapware LeapFTP 2.7.3.600. It has been classified as critical. Affected is an unknown function of the component PASV Request Handler. The manipulation of the argument IP Address with an unknown input leads to a memory corruption vulnerability. CWE is classifying the issue as CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

Buffer overflow in LeapFTP 2.7.3.600 allows remote FTP servers to execute arbitrary code via a long IP address response to a PASV request.

The weakness was released 06/09/2003 by drG4njubas as not defined posting (Bugtraq). The advisory is available at marc.theaimsgroup.com. This vulnerability is traded as CVE-2003-0558 since 07/14/2003. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Technical details and a public exploit are known.

The exploit is shared for download at exploit-db.com. It is declared as highly functional. The vulnerability scanner Nessus provides a plugin with the ID 11705 (LeapFTP < 2.7.4.x PASV Reply Remote Overflow), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Windows and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 121589 (LeapFTP "PASV" Reply Buffer Overflow Vulnerability).

Upgrading eliminates this vulnerability.

The vulnerability is also documented in the databases at X-Force (12233), Exploit-DB (54), Tenable (11705), SecurityFocus (BID 7860†) and OSVDB (4587†). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 7.0

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Highly functional
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 11705
Nessus Name: LeapFTP < 2.7.4.x PASV Reply Remote Overflow
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

MetaSploit ID: leapftp_pasv_reply.rb
MetaSploit Name: LeapWare LeapFTP v2.7.3.600 PASV Reply Client Overflow
MetaSploit File: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍
PaloAlto IPS: 🔍

Timelineinfo

01/01/2003 🔍
06/09/2003 +158 days 🔍
06/09/2003 +0 days 🔍
06/09/2003 +0 days 🔍
07/14/2003 +35 days 🔍
07/20/2003 +6 days 🔍
08/18/2003 +29 days 🔍
03/17/2004 +212 days 🔍
08/14/2014 +3801 days 🔍
08/12/2025 +4016 days 🔍

Sourcesinfo

Advisory: marc.theaimsgroup.com
Researcher: drG4njubas
Status: Confirmed

CVE: CVE-2003-0558 (🔍)
GCVE (CVE): GCVE-0-2003-0558
GCVE (VulDB): GCVE-100-20706
X-Force: 12233
SecurityFocus: 7860 - LeapFTP Client PASV Response Buffer Overflow Vulnerability
OSVDB: 4587 - LeapFTP PASV Reply Remote Overflow
Vulnerability Center: 1481 - LeapFTP FTP Client Allows Arbitrary Code Execution through a Malicious FTP Server, Medium

scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 08/15/2014 00:11
Updated: 08/12/2025 08:48
Changes: 08/15/2014 00:11 (77), 05/10/2019 20:32 (1), 06/29/2021 07:49 (3), 03/02/2025 06:02 (16), 08/12/2025 08:48 (2)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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