Serv-U 4.1.0.0 input validation

CVSS Meta Temp Score
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CTI Interest Score
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4.8$0-$5k0.00

A vulnerability was found in Serv-U 4.1.0.0 (File Transfer Software). It has been declared as critical. This vulnerability affects an unknown functionality. The manipulation with an unknown input leads to a input validation vulnerability. The CWE definition for the vulnerability is CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. As an impact it is known to affect availability. CVE summarizes:

Serv-U FTP Server 4.1 (possibly 4.0) allows remote attackers to cause a denial of service (application crash) via a SITE CHMOD command with a "\\...\" followed by a short string, causing partial memory corruption, a different vulnerability than CVE-2004-2111.

The weakness was released 01/24/2004 (Website). The advisory is shared for download at secunia.com. This vulnerability was named CVE-2004-2533 since 10/25/2005. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Technical details are unknown but a public exploit is available.

After 3 days, there has been an exploit disclosed. It is possible to download the exploit at saintcorporation.com. It is declared as proof-of-concept. The vulnerability scanner Nessus provides a plugin with the ID 12037 (Serv-U SITE CHMOD Command Multiple Vulnerabilities), 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 27219 (RhinoSoft Serv-U FTP Server MDTM Command Stack Overflow Vulnerability).

Upgrading eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (15251), Tenable (12037) and Exploit-DB (149). Entry connected to this vulnerability is available at 23037.

Productinfo

Type

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
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CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 4.8

VulDB Base Score: 5.3
VulDB Temp Score: 4.8
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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Exploitinginfo

Class: Input validation
CWE: CWE-20
ATT&CK: Unknown

Local: No
Remote: Yes

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

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Current Price Estimation: 🔍

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Nessus ID: 12037
Nessus Name: Serv-U SITE CHMOD Command Multiple Vulnerabilities
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 12037
OpenVAS Name: Serv-U FTP Server SITE CHMOD Command Stack Overflow Vulnerability
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
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Timelineinfo

01/24/2004 🔍
01/24/2004 +0 days 🔍
01/26/2004 +1 days 🔍
01/27/2004 +0 days 🔍
02/02/2004 +6 days 🔍
02/16/2004 +14 days 🔍
02/16/2004 +0 days 🔍
02/17/2004 +1 days 🔍
10/21/2004 +247 days 🔍
12/31/2004 +71 days 🔍
10/25/2005 +298 days 🔍
03/09/2015 +3422 days 🔍
05/25/2019 +1538 days 🔍

Sourcesinfo

Advisory: secunia.com
Status: Not defined

CVE: CVE-2004-2533 (🔍)
X-Force: 15251
SecurityTracker: 1009086
Vulnerability Center: 5620 - DoS in RhinoSoft Serv-U 4.1, 4.1 .0.11, 5.0 .0.4 via Long Site chmod Command, High
SecurityFocus: 9675 - RhinoSoft Serv-U FTP Server SITE CHMOD Buffer Overflow Vulnerability
Secunia: 10706
OSVDB: 3713 - Serv-U FTP Server SITE CHMOD Command Filename Handling Overflow

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

Entryinfo

Created: 03/09/2015 16:55
Updated: 05/25/2019 14:51
Changes: 03/09/2015 16:55 (81), 05/25/2019 14:51 (5)
Complete: 🔍

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