Headline
GHSA-r5hm-mp3j-285g: sing-box vulnerable to improper authentication in the SOCKS inbound
Impact
This vulnerability allows specially crafted requests to bypass authentication, affecting all SOCKS inbounds with user authentication.
Patches
Update to sing-box 1.4.5 or 1.5.0-rc.5 and later versions.
Workarounds
Don’t expose the SOCKS5 inbound to insecure environments.
sing-box vulnerable to improper authentication in the SOCKS inbound
Critical severity GitHub Reviewed Published Sep 25, 2023 in SagerNet/sing-box • Updated Sep 26, 2023
Related news
Sing-box is an open source proxy system. Affected versions are subject to an authentication bypass when specially crafted requests are sent to sing-box. This affects all SOCKS5 inbounds with user authentication and an attacker may be able to bypass authentication. Users are advised to update to sing-box 1.4.4 or to 1.5.0-rc.4. Users unable to update should not expose the SOCKS5 inbound to insecure environments.