CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
9.5	$0-$5k	0.00

A vulnerability was found in Serv-U (File Transfer Software). It has been rated as very critical. Affected by this issue is an unknown part. The manipulation with an unknown input leads to a memory corruption vulnerability. Using CWE to declare the problem leads to 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. Impacted is confidentiality, integrity, and availability. CVE summarizes:

Stack-based buffer overflow in the TEA decoding algorithm in RhinoSoft Serv-U FTP server 7.0.0.1, 9.0.0.5, and other versions before 9.1.0.0 allows remote attackers to execute arbitrary code via a long hexadecimal string.

The weakness was presented 11/18/2009 with Secunia Research (Website). The advisory is available at xforce.iss.net. This vulnerability is handled as CVE-2009-4006. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. The technical details are unknown and an exploit is not available. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 08/28/2021).

It is declared as highly functional. The vulnerability scanner Nessus provides a plugin with the ID 42934 (Serv-U < 9.1.0.0), which helps to determine the existence of the flaw in a target environment. It is assigned to the family FTP.

Upgrading to version 7.2.0.0 eliminates this vulnerability. A possible mitigation has been published even before and not after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (54322) and Tenable (42934). See 53351 for similar entry.

Productinfo

Type

• File Transfer Software

Name

• Serv-U

Version

• 7.0.0.1
• 7.0.0.2
• 7.0.0.3
• 7.0.0.4
• 7.1.0.0
• 7.1.0.1
• 7.1.0.2
• 7.2.0.0
• 7.2.0.1
• 7.3.0.0
• 7.3.0.1
• 7.3.0.2
• 7.4.0.0
• 7.4.0.1
• 8.0.0.1
• 8.0.0.2
• 8.0.0.4
• 8.0.0.5
• 8.0.0.7
• 8.1.0.1
• 8.1.0.3
• 8.2.0.0
• 8.2.0.1
• 8.2.0.3
• 9.0.0.1
• 9.0.0.3
• 9.0.0.5
• 9.1.0.0

CPE 2.3info

• 🔍
• 🔍
• 🔍

CPE 2.2info

• 🔍
• 🔍
• 🔍

CVSSv4info

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

CVSSv3info

VulDB Meta Base Score: 10.0
VulDB Meta Temp Score: 9.5

VulDB Base Score: 10.0
VulDB Temp Score: 9.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
unlock	unlock	unlock	unlock	unlock	unlock
unlock	unlock	unlock	unlock	unlock	unlock
unlock	unlock	unlock	unlock	unlock	unlock

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

NVD Base Score: 🔍

Exploitinginfo

Class: Memory corruption
CWE: CWE-119
ATT&CK: Unknown

Local: No
Remote: Yes

Availability: 🔍
Status: Highly functional

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	unlock	unlock	unlock	unlock
Today	unlock	unlock	unlock	unlock

Nessus ID: 42934
Nessus Name: Serv-U < 9.1.0.0
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

OpenVAS ID: 100354
OpenVAS Name: RhinoSoft Serv-U FTP Server TEA Decoder Remote Stack Buffer Overflow Vulnerability
OpenVAS File: 🔍
OpenVAS Family: 🔍

MetaSploit ID: servu_session_cookie.rb
MetaSploit Name: Rhinosoft Serv-U Session Cookie Buffer Overflow
MetaSploit File: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Serv-U 7.2.0.0
Fortigate IPS: 🔍

Timelineinfo

11/17/2009 🔍
11/18/2009 +1 days 🔍
11/18/2009 +0 days 🔍
11/18/2009 +0 days 🔍
11/19/2009 +0 days 🔍
11/20/2009 +1 days 🔍
11/21/2009 +1 days 🔍
11/30/2009 +8 days 🔍
12/07/2009 +7 days 🔍
03/18/2015 +1927 days 🔍
08/28/2021 +2354 days 🔍

Sourcesinfo

Advisory: xforce.iss.net
Organization: Secunia Research
Status: Not defined

CVE: CVE-2009-4006 (🔍)
OVAL: 🔍

X-Force: 54322
Vulnerability Center: 24278 - RhinoSoft Serv-U FTP Server \x3C 9.1.0.0 TEA Decoding Algorithm Remote Code Execution Vulnerability, Critical
SecurityFocus: 37051 - RhinoSoft Serv-U FTP Server TEA Decoder Remote Stack Buffer Overflow Vulnerability
OSVDB: 60427 - Serv-U FTP Server TEA Decoding Algorithm Hexidecimal String Remote Overflow

See also: 🔍

Entryinfo

Created: 03/18/2015 15:15
Updated: 08/28/2021 01:26
Changes: 03/18/2015 15:15 (67), 02/17/2017 12:30 (10), 08/28/2021 01:19 (2), 08/28/2021 01:26 (1)
Complete: 🔍

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