Ipswitch WS_FTP Server 3.x/4.x APPE/STAT Command memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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6.6$0-$5k0.00

Summaryinfo

A vulnerability described as critical has been identified in Ipswitch WS_FTP Server 3.x/4.x. Affected by this vulnerability is an unknown functionality. The manipulation as part of APPE/STAT Command results in memory corruption. This vulnerability is cataloged as CVE-2003-0772. The attack may be launched remotely. Furthermore, there is an exploit available. Applying restrictive firewalling is recommended.

Detailsinfo

A vulnerability, which was classified as critical, was found in Ipswitch WS_FTP Server 3.x/4.x (File Transfer Software). Affected is an unknown code block. The manipulation as part of a APPE/STAT Command 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:

Multiple buffer overflows in WS_FTP 3 and 4 allow remote authenticated users to cause a denial of service and possibly execute arbitrary code via long (1) APPE (append) or (2) STAT (status) arguments.

The bug was discovered 09/05/2003. The weakness was shared 09/05/2003 by pejman as not defined posting (Bugtraq). The advisory is shared for download at securityfocus.com. This vulnerability is traded as CVE-2003-0772 since 09/09/2003. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Technical details are unknown but a public exploit is available.

A public exploit has been developed in ANSI C and been published even before and not after the advisory. The exploit is shared for download at securityfocus.com. It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 771 days. During that time the estimated underground price was around $25k-$100k. The vulnerability scanner Nessus provides a plugin with the ID 14585 (WS_FTP Server STAT Command Remote Overflow), which helps to determine the existence of the flaw in a target environment. It is assigned to the family FTP and running in the context r. The commercial vulnerability scanner Qualys is able to test this issue with plugin 27204 (Ipswitch WS_FTP Server FTP Command Buffer Overrun Vulnerabilities).

Upgrading to version 2.0.3 eliminates this vulnerability. Applying a patch is able to eliminate this problem. The bugfix is ready for download at ipswitch.com.It is possible to mitigate the weakness by firewalling . The best possible mitigation is suggested to be applying a restrictive firewalling. Attack attempts may be identified with Snort ID 1379. Furthermore it is possible to detect and prevent this kind of attack with TippingPoint and the filter 2355.

The vulnerability is also documented in the databases at X-Force (13119), Exploit-DB (1158), Tenable (14585), SecurityFocus (BID 8542†) and OSVDB (14115†). Further details are available at itnews.ch. The entry VDB-17091 is related to this item. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 6.6

VulDB Base Score: 7.3
VulDB Temp Score: 6.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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Exploitinginfo

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

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Programming Language: 🔍
Download: 🔍

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Nessus ID: 14585
Nessus Name: WS_FTP Server STAT Command Remote Overflow
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Qualys ID: 🔍
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Exploit-DB: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: Firewall
Status: 🔍

0-Day Time: 🔍

Upgrade: WS_FTP Server 2.0.3
Patch: ipswitch.com

Snort ID: 1379
Snort Message: PROTOCOL-FTP STAT overflow attempt
Snort Class: 🔍
TippingPoint: 🔍

McAfee IPS: 🔍
McAfee IPS Version: 🔍

SourceFire IPS: 🔍
ISS Proventia IPS: 🔍
PaloAlto IPS: 🔍

Timelineinfo

07/26/2001 🔍
11/05/2001 +102 days 🔍
09/04/2003 +668 days 🔍
09/04/2003 +0 days 🔍
09/05/2003 +1 days 🔍
09/05/2003 +0 days 🔍
09/08/2003 +3 days 🔍
09/09/2003 +1 days 🔍
09/22/2003 +13 days 🔍
01/06/2004 +106 days 🔍
04/09/2004 +93 days 🔍
08/31/2004 +144 days 🔍
07/24/2025 +7632 days 🔍

Sourcesinfo

Vendor: ipswitch.com

Advisory: securityfocus.com⛔
Researcher: Discovery is credited to pejman davarzani . (pejman)
Status: Confirmed

CVE: CVE-2003-0772 (🔍)
GCVE (CVE): GCVE-0-2003-0772
GCVE (VulDB): GCVE-100-264
CERT: 🔍
X-Force: 13119 - Ipswitch WS_FTP Server long FTP command buffer overflow, High Risk
SecurityFocus: 8542 - Ipswitch WS_FTP Server FTP Command Buffer Overrun Vulnerabilities
Secunia: 9671 - WS_FTP Server FTP Command Buffer Overflow Vulnerability, Highly Critical
OSVDB: 14115 - WS_FTP Multiple Command Long Argument Overflow
Vulnerability Center: 3342 - Buffer Overflows in WS_FTP 3 , 4, High

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

Created: 09/08/2003 12:45
Updated: 07/24/2025 05:10
Changes: 09/08/2003 12:45 (104), 06/26/2019 12:46 (2), 03/08/2021 16:54 (2), 03/08/2021 16:57 (1), 11/18/2024 15:33 (21), 07/24/2025 05:10 (3)
Complete: 🔍
Cache ID: 216:851:103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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