WinSCP up to 4.0.3 Protocol access control

CVSS Meta Temp Score
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CTI Interest Score
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5.1$0-$5k0.00

Summaryinfo

A vulnerability was found in WinSCP up to 4.0.3. It has been classified as critical. This affects an unknown part of the component Protocol Handler. Performing a manipulation results in access control. This vulnerability is cataloged as CVE-2007-4909. Furthermore, there is an exploit available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability classified as critical has been found in WinSCP up to 4.0.3 (Connectivity Software). This affects an unknown code block of the component Protocol Handler. The manipulation with an unknown input leads to a access control vulnerability. CWE is classifying the issue as CWE-264. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

Interpretation conflict in WinSCP before 4.0.4 allows remote attackers to perform arbitrary file transfers with a remote server via file-transfer commands in the final portion of a (1) scp, and possibly a (2) sftp or (3) ftp, URL, as demonstrated by a URL specifying login to the remote server with a username of scp, which is interpreted as an HTTP scheme name by the protocol handler in a web browser, but is interpreted as a username by WinSCP. NOTE: this is related to an incomplete fix for CVE-2006-3015.

The weakness was shared 09/17/2007 (Website). It is possible to read the advisory at securityfocus.com. This vulnerability is uniquely identified as CVE-2007-4909 since 09/17/2007. The exploitability is told to be difficult. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Technical details are unknown but a public exploit is available. The attack technique deployed by this issue is T1068 according to MITRE ATT&CK.

The exploit is shared for download at securityfocus.com. It is declared as proof-of-concept. The vulnerability scanner Nessus provides a plugin with the ID 26027 (WinSCP URL Protocol Handler Arbitrary File Transfer), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Windows and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 371701 (WinSCP URL Protocol Handler Arbitrary File Access Vulnerability).

Upgrading to version 3.8.2 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 (36591), Tenable (26027), SecurityFocus (BID 25655†), Secunia (SA26820†) and SecurityTracker (ID 1018697†). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Type

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.6
VulDB Meta Temp Score: 5.1

VulDB Base Score: 5.6
VulDB Temp Score: 5.1
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: Access control
CWE: CWE-264
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

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

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 26027
Nessus Name: WinSCP URL Protocol Handler Arbitrary File Transfer
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: WinSCP 3.8.2

Timelineinfo

09/03/2007 🔍
09/13/2007 +10 days 🔍
09/13/2007 +0 days 🔍
09/14/2007 +1 days 🔍
09/14/2007 +0 days 🔍
09/17/2007 +3 days 🔍
09/17/2007 +0 days 🔍
09/17/2007 +0 days 🔍
09/18/2007 +0 days 🔍
03/16/2015 +2736 days 🔍
10/18/2018 +1312 days 🔍

Sourcesinfo

Advisory: securityfocus.com⛔
Status: Not defined
Confirmation: 🔍

CVE: CVE-2007-4909 (🔍)
GCVE (CVE): GCVE-0-2007-4909
GCVE (VulDB): GCVE-100-38799
X-Force: 36591
SecurityFocus: 25655 - WinSCP URL Protocol Handler Arbitrary File Access Vulnerability
Secunia: 26820 - WinSCP Protocol Handler Command Line Switch Injection, Highly Critical
SecurityTracker: 1018697
Vulnerability Center: 16085 - WinSCP < 4.0.4 Remote File Transfer Commands Execution, Medium

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

Entryinfo

Created: 03/16/2015 12:18
Updated: 10/18/2018 07:31
Changes: 03/16/2015 12:18 (61), 10/18/2018 07:31 (17)
Complete: 🔍
Cache ID: 216::103

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