Priam uses File.createTempFile, which gives the permissions on that file -rw-r--r--. An attacker with read access to the local filesystem can read anything written there by the Priam process.

Affected: Maven: com.netflix.priam:priam

### Impact

When `File.createTempFile` creates a file, the permissions on that file are -rw-r--r--. This means that other users can read the contents of these files after they are written, although they can not modify the contents. This allows for local information disclosure if these files contain sensitive information.

Vulnerable locations: - https://github.com/Netflix/Priam/blob/362660bb7ebddb0cfa756a282d94678f65af9f06/priam/src/main/java/com/netflix/priam/backup/MetaData.java#L106-L111 - https://github.com/Netflix/Priam/blob/362660bb7ebddb0cfa756a282d94678f65af9f06/priam/src/main/java/com/netflix/priam/identity/DoubleRing.java#L109-L118 - https://github.com/Netflix/Priam/blob/362660bb7ebddb0cfa756a282d94678f65af9f06/priam/src/main/java/com/netflix/priam/restore/PostRestoreHook.java#L80-L86

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The custom CodeQL queries leveraged to find these this as well as their results can be found here:

https://lgtm.com/query/1543383251073929777/ https://lgtm.com/query/3142895023158674709/

## Official Disclosure

https://github.com/Netflix/security-bulletins/blob/master/advisories/nflx-2021-002.md

## Fix

There are no fixed versions.