BigBlueButton before 2.2.5 allows remote attackers to obtain sensitive files via Local File Inclusion.
The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.
Link | Tags |
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https://twitter.com/thibeault_chenu/status/1249976515917422593 | third party advisory |
https://twitter.com/bigbluebutton/status/1252706369486180353 | third party advisory |
https://github.com/bigbluebutton/bigbluebutton/compare/v2.2.4...v2.2.5 | third party advisory patch |
https://cwe.mitre.org/data/definitions/23.html | third party advisory |
https://github.com/tchenu/CVE-2020-12112 | third party advisory exploit |