Insecure file permissions, network access control and DNS usage put systems that use Legato NetWorker at risk.
When the software is running, several files that contain sensitive information are created with insecure permissions. The information exposed include passwords and can therefore be used for privilege elevation.
An empty "servers" file, which should normally contain hostnames of authorized backup servers, may allow unauthorized backups to be made. Sensitive information can be extracted from these backups.
When reverse DNS fails for the Legato client IP a weak authorization scheme, containing a flaw that allows unauthorized access, is used. This may allow unauthorized access.
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