GNS3 ubridge through 0.9.18 on macOS, as used in GNS3 server before 2.1.17, allows a local attacker to read arbitrary files because it handles configuration-file errors by printing the configuration file while executing in a setuid root context.
Source: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-14976
Reference (s):
- https://github.com/GNS3/gns3-server/releases/tag/v2.1.17
- https://github.com/GNS3/ubridge/commit/2eb0d1dab6a6de76cf3556130a2d52af101077db
- https://theevilbit.github.io/posts/
- https://www.gns3.com/