CVE-2014-0774

Schneider Electric OFS Stack Buffer Overflow

Published Feb 28, 2014 CVSS 2.0 · 6.8 Medium EPSS < 1% KEV · Not listed
Description
Stack-based buffer overflow in the C++ sample client in Schneider Electric OPC Factory Server (OFS) TLXCDSUOFS33 - 3.35, TLXCDSTOFS33 - 3.35, TLXCDLUOFS33 - 3.35, TLXCDLTOFS33 - 3.35, and TLXCDLFOFS33 - 3.35 allows local users to gain privileges via vectors involving a malformed configuration file.

Remediation

Vendor Solution

Schneider Electric has a product upgrade as well as a workaround solution that mitigates this vulnerability.  Schneider Electric Security Notification SEVD 2014-031-01,”Vulnerability Disclosure – OPC Factory Server V3.35,” http://www.downloads.schneider-electric.com/?p_Conf=&p_localesFilter=&p_docTypeFilter=155589... http://www.downloads.schneider-electric.com/     The security announcements affecting the OPC Factory Server are available here: http://www2.schneider-electric.com/sites/corporate/en/support/cybersecurity/cybersecurity.page Schneider Electric recommends customers to upgrade to OFS v3.4 or later (Version v3.5 is currently available). Customers that cannot upgrade are directed to remove the demonstration client from affected computers, provided it is not required for operations.

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2014-0805 Stack-based buffer overflow in the C++ sample client in Schneider Electric OPC Factory Server (OFS) TLXCDSUOFS33 - 3.35, TLXCDSTOFS33 - 3.35, TLXCDLUOFS33 - 3.35, TLXCDLTOFS33 - 3.35, and TLXCDLFOFS33 - 3.35 allows local users to gain privileges via vectors involving a malformed configuration file.
History
Type Values Removed Values Added
Title Schneider Electric OFS Stack Buffer Overflow
Weaknesses CWE-121
References
Metrics cvssV2_0

{'score': 6.9, 'vector': 'AV:L/AC:M/Au:N/C:C/I:C/A:C'}

cvssV2_0

{'score': 6.8, 'vector': 'AV:L/AC:L/Au:S/C:C/I:C/A:C'}