Vulnerability Note VU#924506
Toshiba 4690 OS contains an information disclosure vulnerability
Original Release date: 08 Jun 2015 | Last revised: 08 Jun 2015

Overview
The Toshiba 4690 operating system, version 6 (Release 3) and possibly earlier versions, contains an information disclosure vulnerability.

Description
CWE-200: Information Exposure – CVE-2014-4876
The Toshiba 4690 operating system, version 6 (Release 3) and possibly earlier versions, contains an information disclosure vulnerability. Sending a special string to TCP port 54138 causes system environment variables and other information to be returned to an unauthenticated client. The vendor has stated that this disclosure occurs by design as part of the support capabilities of 4690 and that:

The data being returned contains information about the current state of the 4690 OS and can be used for problem determination. The information is generally the same as that available by local 4690 APIs or from RMA, the 4690 OS system management function. It doesn’t contain sensitive (PCI) information.

Impact
A remote, unauthenticated attacker is able to view potentially sensitive system information.

Solution
The CERT/CC is currently unaware of a practical solution to this problem and recommends the following workaround.
Disable services

The vendor has suggested a workaround for users concerned about the information being exposed:

The user should disable the ADXSITCF logical name to the string -q. This will disable the services that connect with the network to provide this information, however it will also disable RMA system management data collection as well as prevent the use of ADXSITQL by support teams for gathering information without dumping the machine.

Vendor Information (Learn More)

VendorStatusDate NotifiedDate UpdatedToshiba Commerce SolutionsAffected06 Aug 201402 Jun 2015If you are a vendor and your product is affected, let
us know.

CVSS Metrics (Learn More)

Group
Score
Vector

Base
5.0
AV:N/AC:L/Au:N/C:P/I:N/A:N

Temporal
4.5
E:F/RL:W/RC:C

Environmental
3.4
CDP:N/TD:M/CR:ND/IR:ND/AR:ND

References

http://cwe.mitre.org/data/definitions/200.html
http://en.wikipedia.org/wiki/4690_Operating_System

Credit

Thanks to David Odell for reporting this vulnerability.
This document was written by Todd Lewellen and Joel Land.

Other Information

CVE IDs:
CVE-2014-4876

Date Public:
08 Jun 2015

Date First Published:
08 Jun 2015

Date Last Updated:
08 Jun 2015

Document Revision:
18

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