The ActiveBar1 ActiveX control in the Data Dynamics ActiveBar ActiveX controls, as distributed in ActBar.ocx 18.104.22.168 in IBM Rational System Architect 22.214.171.124, 126.96.36.199, and earlier, does not properly restrict the SetLayoutData method, which allows remote attackers to execute arbitrary code via a crafted Data argument, a different vulnerability than CVE-2007-3883. NOTE: some of these details are obtained from third party information.
The product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check. This allows attackers to bypass intended access restrictions.
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Assuming a user with a given identity, authorization is the process of determining whether that user can access a given resource, based on the user’s privileges and any permissions or other access-control specifications that apply to the resource. When access control checks are incorrectly applied, users are able to access data or perform actions that they should not be allowed to perform. This can lead to a wide range of problems, including information exposures, denial of service, and arbitrary code execution.