geonetwork

A privileged attacker in GeoNetwork before 3.12.0 and 4.x before 4.0.4 can use the directory harvester before-script to execute arbitrary OS commands remotely on the hosting infrastructure. A User Administrator or Administrator account is required to perform this. This occurs in the runBeforeScript method in harvesters/src/main/java/org/fao/geonet/kernel/harvest/harvester/localfilesystem/LocalFilesystemHarvester.java. The earliest affected version is 3.4.0.

Geonetwork 3.10 through 4.2.0 contains an XML external entity vulnerability in PDF rendering that allows attackers to retrieve arbitrary files from the server. Attackers can exploit the insecure XML parser by crafting a malicious XML document with external entity references to read system files through the baseURL parameter in PDF creation requests.