CVE-2020-11498 (NVD)

2020-04-02

Slack Nebula through 1.1.0 contains a relative path vulnerability that allows a low-privileged attacker to execute code in the context of the root user via tun_darwin.go or tun_windows.go. A user can also use Nebula to execute arbitrary code in the user's own context, e.g., for user-level persistence or to bypass security controls. NOTE: the vendor states that this "requires a high degree of access and other preconditions that are tough to achieve."

Products Nebula
Type Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') (CWE-22)
First patch - None (likely due to unavailable code)
Links http://www.pwn3d.org/posts/7918501-slack-nebula-relative-path-bug-bounty-disclosure
https://github.com/slackhq/nebula/pull/191