A weakness has been reported in the Auth Core component for Apache Sling, which can be exploited by malicious people to conduct spoofing attacks.
Input passed via e.g. the "resource" parameter is not properly verified within the org.apache.sling.auth.core.spi.AbstractAuthenticationFormServlet class before being used to redirect users. This can be exploited to redirect a user to an arbitrary website e.g. when a user clicks a specially crafted link to the affected script hosted on a trusted domain.
The weakness is reported in versions prior to 1.1.4.
Solution: Update to version 1.1.4.
Provided and/or discovered by: The vendor credits Raphael Wegmueller, Adobe Systems Incorporated.
Original Advisory: Apache Sling:
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Subject: Apache Sling Auth Core Component "resource" Open Redirection Weakness
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