FTP Server Port Bounce privileges management

CVSS Meta Temp Score
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CTI Interest Score
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7.1$0-$5k0.00

A vulnerability was found in FTP Server (File Transfer Software) (affected version unknown) and classified as critical. Affected by this issue is an unknown functionality of the component Port Handler. The manipulation with an unknown input leads to a privileges management vulnerability (Bounce). Using CWE to declare the problem leads to CWE-269. The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor. Impacted is confidentiality, integrity, and availability. CVE summarizes:

ftp servers can allow an attacker to connect to arbitrary ports on machines other than the ftp client aka ftp bounce.

The weakness was released 12/10/1997. This vulnerability is handled as CVE-1999-0017. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. Technical details are unknown but a public exploit is available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 05/05/2019). The MITRE ATT&CK project declares the attack technique as T1068. This vulnerability has a historic impact due to its background and reception.

A public exploit has been developed in ANSI C. It is declared as highly functional. The vulnerability scanner Nessus provides a plugin with the ID 14599 (WS_FTP Server Multiple Vulnerabilities (Bounce, PASV Hijacking)), 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.

Addressing this vulnerability is possible by firewalling . Attack attempts may be identified with Snort ID 3441.

The vulnerability is also documented in the databases at X-Force (945) and Tenable (14599). Entry connected to this vulnerability is available at 90803.

Productinfo

Type

Name

CPE 2.3info

CPE 2.2info

CVSSv4info

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

CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 7.1

VulDB Base Score: 7.3
VulDB Temp Score: 7.1
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

Name: Bounce
Class: Privileges management / Bounce
CWE: CWE-269 / CWE-266
ATT&CK: T1068

Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Highly functional
Programming Language: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 14599
Nessus Name: WS_FTP Server Multiple Vulnerabilities (Bounce, PASV Hijacking)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 14599
OpenVAS Name: WS FTP server FTP bounce attack and PASV connection hijacking flaw
OpenVAS File: 🔍
OpenVAS Family: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Firewall
Status: 🔍

0-Day Time: 🔍
Snort ID: 3441
Snort Message: PROTOCOL-FTP PORT bounce attempt
Snort Class: 🔍
SourceFire IPS: 🔍
ISS Proventia IPS: 🔍
Fortigate IPS: 🔍

Timelineinfo

12/10/1997 🔍
12/10/1997 +0 days 🔍
12/10/1997 +0 days 🔍
10/22/2002 +1777 days 🔍
10/25/2002 +3 days 🔍
09/01/2004 +677 days 🔍
06/18/2014 +3577 days 🔍
05/05/2019 +1782 days 🔍

Sourcesinfo

Status: Not defined

CVE: CVE-1999-0017 (🔍)
X-Force: 945
Vulnerability Center: 190 - FTP Bounce Attack on Multiple FTP Servers, High
SecurityFocus: 6050 - IPSwitch WS_FTP Server FTP Bounce Vulnerability

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

Entryinfo

Created: 06/18/2014 17:39
Updated: 05/05/2019 12:59
Changes: 06/18/2014 17:39 (75), 05/05/2019 12:59 (2)
Complete: 🔍

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