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CWE - 273 : Improper Check for Dropped Privileges

CWE Definition http://cwe.mitre.org/data/definitions/273.html
Number of vulnerabilities: 0
Description The software attempts to drop privileges but does not check or incorrectly checks to see if the drop succeeded.If the drop fails, the software will continue to run with the raised privileges, which might provide additional access to unprivileged users.
Background Details
Other Notes In Microsoft Operating environments that have access control, impersonation is used so that access checks can be performed on a client identity by a server with higher privileges. By impersonating the client, the server is restricted to client-level security -- although in different threads it may have much higher privileges. Code which relies on this for security must ensure that the impersonation succeeded-- i.e., that a proper privilege demotion happened.

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