The "Protect Worksheet" functionality in Mathsoft Mathcad 12 through 13.1, and PTC Mathcad 14, implements file access restrictions via a protection element in a gzipped XML file, which allows attackers to bypass these restrictions by removing this element.
Mathsoft sold mathcad to PTC in 2006. PTC now supports all vulnerable versions.
CVSS Severity (version 2.0):
Impact Subscore: 6.4
Exploitability Subscore: 3.9
CVSS Version 2 Metrics:
Access Vector: Locally exploitable
Access Complexity: Low
Authentication: Not required to exploit
Impact Type: Allows unauthorized disclosure of information; Allows unauthorized modification; Allows disruption of service
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20071016 CVE-2007-4600 - Mathcad Protect Worksheet Vulnerability
Vulnerable software and versions