Description
Sandstorm before build 0.203 allows remote attackers to read any specified file under /etc or /run via the sandbox backup function. The root cause is that the findFilesToZip function doesn't filter Line Feed (\n) characters in a directory name.
References
- https://github.com/sandstorm-io/sandstorm/commit/4ea8df7403381d9b657b121b3c98d8081b27414d
- https://github.com/sandstorm-io/sandstorm/commit/6e8572ea8bb56d0216bb1b410e5040edc051b120
- https://github.com/sandstorm-io/sandstorm/blob/v0.202/src/sandstorm/backup.c%2B%2B#L271
- https://sandstorm.io/news/2017-03-02-security-review
- https://devco.re/blog/2018/01/26/Sandstorm-Security-Review-CVE-2017-6200-en/