CVE-2026-29781— Sliver 代码问题漏洞

Sliver: Authenticated Nil-Pointer Dereference in Handlers

Sliver is a command and control framework that uses a custom Wireguard netstack. In versions from 1.7.3 and prior, a vulnerability exists in the Sliver C2 server's Protobuf unmarshalling logic due to a systemic lack of nil-pointer validation. By extracting valid implant credentials and omitting nested fields in a signed message, an authenticated actor can trigger an unhandled runtime panic. Because the mTLS, WireGuard, and DNS transport layers lack the panic recovery middleware present in the HTTP transport, this results in a global process termination. While requiring post-authentication access (a captured implant), this flaw effectively acts as an infrastructure "kill-switch," instantly severing all active sessions across the entire fleet and requiring a manual server restart to restore operations. At time of publication, there are no publicly available patches.

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空指针解引用

Sliver 代码问题漏洞

Sliver是Bishop Fox开源的一个开源的跨平台对手模拟/红队框架。可以被各种规模的组织用来执行安全测试。 Sliver 1.7.3及之前版本存在代码问题漏洞，该漏洞源于Protobuf解组逻辑缺乏空指针验证，可能导致全局进程终止。

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