44252 : Tumbleweed SecureTransport FileTransfer ActiveX TransferFile() Method remoteFile Variable Overflow
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Info

Last Modified

2 months ago

Percent Complete

100%

Disclosure

Apr 07, 2008

Discovery

Aug 13, 2007

Dates

Exploit

Unknown

Solution

Oct 19, 2007

Description

There is a stack overflow in the vcst_eu.dll FileTransfer Module (1.0.0.5) ActiveX control in the Tumbleweed SecureTransport suite. By sending an overly long string to the TransferFile() 'remotefile' function, an attacker may be able to execute arbitrary code.

Classification

Location: Remote/Network Access Required
Attack Type: Input Manipulation
Impact: Loss of Integrity
Solution: Patch
Exploit: Exploit Available
Disclosure: OSVDB Verified, Vendor Verified, Coordinated Disclosure
OSVDB: Web Related

Technical

When a large value is specified for the 'remoteFile' parameter of the IActiveXTransfer.FileTransfer() method, a stack overflow occurs. Exploitation can result in code execution under the context of the current user. Other parameters, such as localFile, fdxCookie and localFile may also vulnerable.

Solution

Currently, there are no known workarounds or upgrades to correct this issue. However, Tumbleweed Communications has released a patch to address this vulnerability.

Products

Tumbleweed Communications Corp.
Watch-list

Watch-list
4.6.1

References

Manual Testing Notes

Credit

  • Patrick Webster - patrickBrand New Doo Dooaushack.com - aushack

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