[SECURITY] CVE-2019-0214: Apache Archiva arbitrary file write and delete on the server

[Martin <martin_s () apache org>]

CVE-2019-0214: Apache Archiva arbitrary file write and delete on the server

Severity: Medium

Vendor:
The Apache Software Foundation

Versions Affected:
    Apache Archiva 2.0.0 - 2.2.3
    The unsupported versions 1.x are also affected.  

It is possible to write files to the archiva server at arbitrary locations by using the artifact upload mechanism. 
Existing files can be overwritten, if the archiva run user has appropriate permission on the filesystem for the target 
file.

Mitigation:
  It is highly recommended to upgrade to Archiva 2.2.4 or higher, where additional validations are implemented to 
prevent such malicious parameter values.
  As intermediate action you may reduce the number of users that are allowed to upload to archiva and make sure, that 
the archiva run user may have only 
  write permission to the directories needed.

References:
http://archiva.apache.org/security.html#CVE-2019-0214

The newest Archiva version can be downloaded from:
http://archiva.apache.org/download.cgi