Cc Tweaked
Monthly
Incomplete NAT64 prefix filtering in CC: Tweaked prior to 1.120.0 allows any Lua-capable Minecraft player on a dual-stack server to bypass SSRF protections and reach loopback, RFC 1918, cloud metadata, or internal API endpoints. The flaw resides in AddressPredicate.java, which correctly blocks the RFC 6052 Well-Known NAT64 prefix (64:ff9b::/96) but omits the RFC 8215 Local-Use prefix (64:ff9b:1::/48), enabling requests via http.request or http.websocket to mapped internal IPv4 addresses. No public exploit code has been identified and this vulnerability is not listed in the CISA KEV catalog; exploitation requires a non-default dual-stack NAT64 deployment.
CC: Tweaked is a mod for Minecraft which adds programmable computers, turtles, and more to the game. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, low attack complexity. This Server-Side Request Forgery (SSRF) vulnerability could allow attackers to make the server perform requests to unintended internal or external resources.
Incomplete NAT64 prefix filtering in CC: Tweaked prior to 1.120.0 allows any Lua-capable Minecraft player on a dual-stack server to bypass SSRF protections and reach loopback, RFC 1918, cloud metadata, or internal API endpoints. The flaw resides in AddressPredicate.java, which correctly blocks the RFC 6052 Well-Known NAT64 prefix (64:ff9b::/96) but omits the RFC 8215 Local-Use prefix (64:ff9b:1::/48), enabling requests via http.request or http.websocket to mapped internal IPv4 addresses. No public exploit code has been identified and this vulnerability is not listed in the CISA KEV catalog; exploitation requires a non-default dual-stack NAT64 deployment.
CC: Tweaked is a mod for Minecraft which adds programmable computers, turtles, and more to the game. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, low attack complexity. This Server-Side Request Forgery (SSRF) vulnerability could allow attackers to make the server perform requests to unintended internal or external resources.