Cat Soft Serv-U 2.5 memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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6.7$0-$5k0.00

Summaryinfo

A vulnerability classified as critical has been found in Cat Soft Serv-U 2.5. This vulnerability affects unknown code. Performing a manipulation results in memory corruption. This vulnerability is cataloged as CVE-1999-0219. Furthermore, there is an exploit available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in Cat Soft Serv-U 2.5 (File Transfer Software). It has been classified as critical. This affects some unknown processing. The manipulation 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 availability. The summary by CVE is:

buffer overflow in ftp serv-u 2.5 allows remote authenticated users to cause a denial of service (crash) via a long (1) cwd or (2) ls (list) command.

The weakness was shared 07/01/1997 by Arne Vidstrom (Shadow) (Website). The advisory is shared at xforce.iss.net. This vulnerability is uniquely identified as CVE-1999-0219. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Technical details are unknown but a public exploit is available.

A public exploit has been developed by UNYUN in ANSI C. The exploit is shared for download at securityfocus.com. It is declared as proof-of-concept. The vulnerability scanner Nessus provides a plugin with the ID 10089 (Serv-U CWD Command 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 27050 (Cat Soft Serv-U FTP Server Buffer Overflow Vulnerabilities).

Upgrading to version 2.5a eliminates this vulnerability. Attack attempts may be identified with Snort ID 1919.

The vulnerability is also documented in the databases at X-Force (2176), Exploit-DB (19218), Tenable (10089), SecurityFocus (BID 269†) and Vulnerability Center (SBV-234†). The entry VDB-89149 is related to this item. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 6.7

VulDB Base Score: 7.5
VulDB Temp Score: 6.7
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: Proof-of-Concept
Author: UNYUN
Programming Language: 🔍
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 10089
Nessus Name: Serv-U CWD Command Overflow
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Serv-U 2.5a

Snort ID: 1919
Snort Message: PROTOCOL-FTP CWD overflow attempt
Snort Class: 🔍

Suricata ID: 2101919
Suricata Class: 🔍
Suricata Message: 🔍
SourceFire IPS: 🔍

Timelineinfo

07/01/1997 🔍
07/01/1997 +0 days 🔍
07/01/1997 +0 days 🔍
05/03/1999 +671 days 🔍
06/22/1999 +50 days 🔍
11/25/2002 +1252 days 🔍
06/18/2014 +4223 days 🔍
10/26/2025 +4148 days 🔍

Sourcesinfo

Advisory: xforce.iss.net
Researcher: Arne Vidstrom (Shadow)
Status: Confirmed

CVE: CVE-1999-0219 (🔍)
GCVE (CVE): GCVE-0-1999-0219
GCVE (VulDB): GCVE-100-13929
X-Force: 2176
SecurityFocus: 269 - Cat Soft Serv-U Buffer Overflow Vulnerabilities
Vulnerability Center: 234 - Buffer Overflow in Serv-U FTP Server, High

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

Entryinfo

Created: 06/18/2014 12:04
Updated: 10/26/2025 08:23
Changes: 06/18/2014 12:04 (76), 05/05/2019 16:55 (4), 11/12/2024 13:02 (19), 10/26/2025 08:23 (2)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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