Communities and collections administrators can escalate their privilege up to system administrator

Impact

Any community or collection administrator can escalate their permission up to become system administrator.

This vulnerability only existed in 7.0 and does not impact 6.x or below.

Patches

Fix is included in 7.1. Please upgrade to 7.1 at your earliest convenience.

Workarounds

In 7.0, temporarily disable the ability for community or collection administrators to manage permissions or workflows settings, i.e. set the following properties in your local.cfg / dspace.cfg file

core.authorization.collection-admin.policies = false
core.authorization.community-admin.policies = false
core.authorization.community-admin.collection.workflows = false

Once upgraded to 7.1, these settings can be safely reverted to the default values of true.

References

Discovered during investigation of https://github.com/DSpace/DSpace/issues/7928

For more information

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