Bisonware Bison FTP Server V4R1 BDL File symlink

CVSS Meta Temp Score
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CTI Interest Score
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6.6$0-$5k0.00

Summaryinfo

A vulnerability classified as critical was found in Bisonware Bison FTP Server V4R1. Impacted is an unknown function of the component BDL File Handler. Such manipulation leads to symlink. This vulnerability is listed as CVE-2001-0765. In addition, an exploit is available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in Bisonware Bison FTP Server V4R1 (File Transfer Software) and classified as critical. Affected by this issue is an unknown function of the component BDL File Handler. The manipulation with an unknown input leads to a symlink vulnerability. Using CWE to declare the problem leads to CWE-61. The product, when opening a file or directory, does not sufficiently account for when the file is a symbolic link that resolves to a target outside of the intended control sphere. This could allow an attacker to cause the product to operate on unauthorized files. Impacted is confidentiality, integrity, and availability. CVE summarizes:

BisonFTP V4R1 allows local users to access directories outside of their home directory by uploading .bdl files, which can then be linked to other directories.

The weakness was presented 07/21/2001 by ByteRage as not defined posting (Bugtraq). The advisory is shared for download at archives.neohapsis.com. This vulnerability is handled as CVE-2001-0765. 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 an exploit is available.

After immediately, there has been an exploit disclosed. It is declared as proof-of-concept. The commercial vulnerability scanner Qualys is able to test this issue with plugin 27085 (BisonFTP BDL File Upload Directory Traversal Vulnerability).

Upgrading eliminates this vulnerability.

The vulnerability is also documented in the databases at X-Force (6782), SecurityFocus (BID 2963†), OSVDB (1888†) and Vulnerability Center (SBV-3801†). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 6.6

VulDB Base Score: 7.3
VulDB Temp Score: 6.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Symlink
CWE: CWE-61 / CWE-59
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Yes

Availability: 🔍
Status: Proof-of-Concept

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍
Exploit Delay Time: 🔍
ISS Proventia IPS: 🔍

Timelineinfo

07/02/2001 🔍
07/02/2001 +0 days 🔍
07/21/2001 +19 days 🔍
07/21/2001 +0 days 🔍
10/18/2001 +89 days 🔍
02/21/2003 +491 days 🔍
02/18/2004 +361 days 🔍
07/09/2014 +3794 days 🔍
05/20/2019 +1776 days 🔍

Sourcesinfo

Advisory: archives.neohapsis.com
Researcher: ByteRage
Status: Not defined
Confirmation: 🔍

CVE: CVE-2001-0765 (🔍)
GCVE (CVE): GCVE-0-2001-0765
GCVE (VulDB): GCVE-100-17528
X-Force: 6782 - BisonFTP \
SecurityFocus: 2963 - BisonFTP BDL File Upload Directory Traversal Vulnerability
OSVDB: 1888 - BisonWare FTP .bdl File Symlink Arbitrary File / Directory Access
Vulnerability Center: 3801 - BisonWare FTP Server Directory Traversal via Uploading of .bdl Files, Medium

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

Entryinfo

Created: 07/09/2014 17:32
Updated: 05/20/2019 06:36
Changes: 07/09/2014 17:32 (71), 05/20/2019 06:36 (1)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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