Rhinosoft Serv-U FTP Server up to 5.0.0.4 Timezone MDTM memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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5.9$0-$5k0.00

A vulnerability has been found in Rhinosoft Serv-U FTP Server up to 5.0.0.4 (File Transfer Software) and classified as critical. Affected by this vulnerability is an unknown part of the component Timezone Handler. The manipulation of the argument MDTM with an unknown input leads to a memory corruption vulnerability. The CWE definition for the vulnerability is 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. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

Buffer overflow in Serv-U ftp before 5.0.0.4 allows remote authenticated users to execute arbitrary code via a long time zone argument to the MDTM command.

The bug was discovered 02/26/2004. The weakness was published 02/26/2004 by bkbll with cnhonker.com (Website). It is possible to read the advisory at cnhonker.com. This vulnerability is known as CVE-2004-0330. The attack can be launched remotely. A single authentication is necessary for exploitation. Technical details and also a public exploit are known.

A public exploit has been developed by Sam and been published 1 days after the advisory. It is possible to download the exploit at cnhonker.com. It is declared as highly functional. We expect the 0-day to have been worth approximately $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 12080 (Serv-U MDTM 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.

Upgrading to version 5.0.0.4 eliminates this vulnerability. Applying a patch is able to eliminate this problem. The bugfix is ready for download at serv-u.com. The best possible mitigation is suggested to be upgrading to the latest version. A possible mitigation has been published before and not just after the disclosure of the vulnerability. Attack attempts may be identified with Snort ID 2416. Furthermore it is possible to detect and prevent this kind of attack with TippingPoint and the filter 3459.

The vulnerability is also documented in the databases at X-Force (15323), Tenable (12080) and Exploit-DB (158).

Productinfo

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Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.3
VulDB Meta Temp Score: 5.9

VulDB Base Score: 6.3
VulDB Temp Score: 5.9
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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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: 🔍

Local: No
Remote: Yes

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

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 12080
Nessus Name: Serv-U MDTM Command Overflow
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Saint ID: exploit_info/serv_u_mdtm_timezone
Saint Name: Serv-U FTP Server MDTM timezone buffer overflow

MetaSploit ID: servu_mdtm.rb
MetaSploit Name: Serv-U FTPD MDTM Overflow
MetaSploit File: 🔍

ATK: 215
Exploit-DB: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍
Exploit Delay Time: 🔍

Upgrade: Serv-U FTP Server 5.0.0.4
Patch: serv-u.com

Snort ID: 2416
Snort Message: PROTOCOL-FTP invalid MDTM command attempt
Snort Class: 🔍

Suricata ID: 2102546
Suricata Class: 🔍
Suricata Message: 🔍

TippingPoint: 🔍

McAfee IPS: 🔍
McAfee IPS Version: 🔍

SourceFire IPS: 🔍
PaloAlto IPS: 🔍

Timelineinfo

02/25/2004 🔍
02/26/2004 +1 days 🔍
02/26/2004 +0 days 🔍
02/26/2004 +0 days 🔍
02/26/2004 +0 days 🔍
02/26/2004 +0 days 🔍
02/27/2004 +1 days 🔍
02/27/2004 +0 days 🔍
02/27/2004 +0 days 🔍
02/27/2004 +0 days 🔍
02/29/2004 +1 days 🔍
03/01/2004 +1 days 🔍
11/23/2004 +267 days 🔍
06/27/2019 +5329 days 🔍

Sourcesinfo

Advisory: cnhonker.com
Researcher: bkbll
Organization: cnhonker.com
Status: Not defined

CVE: CVE-2004-0330 (🔍)
X-Force: 15323 - Serv-U MDTM buffer overflow, High Risk
Vulnerability Center: 3869 - Buffer Overflow in FTP Serv-U FTP server < 5.0.0.4, Critical
SecurityFocus: 9751 - RhinoSoft Serv-U FTP Server MDTM Command Time Argument Buffer Overflow Vulnerability
Secunia: 10989 - Serv-U FTP Server MDTM Command Buffer Overflow Vulnerability, Moderately Critical
OSVDB: 4073 - Serv-U FTP Server MDTM Command Time Zone Argument Overflow

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

Entryinfo

Created: 03/01/2004 10:51
Updated: 06/27/2019 20:18
Changes: 03/01/2004 10:51 (114), 06/27/2019 20:18 (3)
Complete: 🔍

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