nosferatu

nosferatu Windows NTLM/Kerberos 认证后门 工作原理 首先，DLL 被注入到 lsass.exe 进程中，并开始挂钩认证 WinAPI 调用。目标函数为： NTLM: NtlmShared!MsvpPasswordValidate Kerberos: cryptdll!CDLocateCSystem Kerberos: samsrv!SamIRetrieveMultiplePrimaryCredentials 为了不被检测，挂钩的函数会先调用原始函数，允许正常认证流程。仅在发现认证失败后，挂钩才会将实际 NTLM 哈希替换为后门哈希。 使用 nosferat...

GO-2026-5962 File Browser: Command Injection via Authentication Hook Shell Substitution (Pre-Authentication RCE) in github.com/filebrowser/filebrowser

File Browser: Command Injection via Authentication Hook Shell Substitution Pre-Authentication RCE in github.com/filebrowser/filebrowser...

CVE-2026-54088

File Browser is a file managing interface for uploading, deleting, previewing, renaming, and editing files within a specified directory. Prior to 2.63.6, the Hook Authentication feature in File Browser allows administrators to delegate login verification to an external shell command. User-supplie...

mod_gnutls: Certificate validation error

Background modgnutls is an extension for ​Apache’s httpd. It uses the ​GnuTLS library to provide HTTPS. It supports some protocols and features that modssl does not. Description It was discovered that the authentication hook in modgnutls does not validate client’s certificates even when option...

CVE-2015-2091

Summary: CVE-2015-2091 affects mod-gnutls (Apache module) versions = 0.7.3 in the Gentoo advisory). Remediation (supported by sources): upgrade mod-gnutls to patched versions; apply vendor advisories that list updated releases. No exploit details are provided beyond the vulnerability description ...

CVE-2015-2091

The authentication hook mgshookauthz in mod-gnutls 0.5.10 and earlier does not validate client certificates when "GnuTLSClientVerify require" is set, which allows remote attackers to spoof clients via a crafted certificate...