Description
Sliver is a command and control framework that uses a custom Wireguard netstack. Prior to 1.7.0, the DNS C2 listener accepts unauthenticated TOTP bootstrap messages and allocates server-side DNS sessions without validating OTP values, even when EnforceOTP is enabled. Because sessions are stored without a cleanup/expiry path in this flow, an unauthenticated remote actor can repeatedly create sessions and drive memory exhaustion. This vulnerability is fixed in 1.7.0.
Problem types
CWE-306: Missing Authentication for Critical Function
CWE-400: Uncontrolled Resource Consumption
Product status
References
github.com/...sliver/security/advisories/GHSA-wxrw-gvg8-fqjp
github.com/BishopFox/sliver/releases/tag/v1.7.0