Hacking & Tinkering (っ*'ᗜ'*)ノ =͟͟͞͞@rubiyalab✧*

Joined October 2024
[1day1line] CVE-2026-42980: Privilege Escalation via an Integer Underflow in Windows WMI Hello, This is minzu. Today's 1day1line covers a local privilege escalation vulnerability in the Windows kernel's WMI code (ntoskrnl.exe). When multiple WMI query results are written into one buffer, subtracting an 8-byte-aligned result size without checking the remaining output space can cause an integer underflow. The resulting size miscalculation can lead to a nonpaged pool buffer overflow. The public PoC demonstrates escalation to SYSTEM on vulnerable systems. Please refer to the blog post for more details! hackyboiz.github.io/2026/10/…
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Hell yeah Cellebrite is dropping SecureROM 0days on stage (variant of usbliter8) !!
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At #hexacon - Calif.io demos iOS 27.0.1 untethered jailbreak on iPhone 18 Pro
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Random RubiyaLab update: Last month, our members joined CSK2026 APEX as Tech & Grey Team supporters! 💪 Such a great experience contributing to an international cyber exercise ✨
For the third year, @ccdcoe contributed to the planning and execution of the international cyber defence exercise APEX (Allied Power Exercise), held in Seoul. 🇰🇷 The exercise brought together approximately 300 cyber defence experts from 23 countries to defend critical national infrastructure against sophisticated transnational cyber threats.
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#POC2026 🏖️📦 Jihyeon Jeong(@symsool9143) - "Sand-Unboxing: Breaking the V8 Sandbox 10+ Times and Unveiling a Temporal Design Failure"
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4397328654844826923795068102505872571721883526553349659561256924505973939597593482272505698004801207988043088656411102133523080581 divides RSA-260
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真正玩过 Linux 的人,现在看很多 AI Agent 教程,心情其实挺复杂的。 因为你会发现,AI 是 2026 年的。 很多所谓 Agent 基础设施,大概是 1996 年的。 给 Agent 单独建用户,叫身份隔离。 chmod 一下,叫最小权限。 分个目录,叫 Workspace Sandbox。 限制 sudo,叫安全边界。 systemd 守护进程,叫 Agent Runtime。 cron 定时跑,叫 Autonomous Scheduler。 journalctl 看日志,叫 Observability。 SSH 远程进去,叫 Human in the Loop。 Docker 套一层,叫 Secure Execution Environment。 进程挂了自动拉起,叫 Self Healing。 几个脚本互相调用一下,已经开始画 Multi Agent Architecture 了。 再配个 Redis,恨不得第二天融资。 我有时候看这些架构图,确实挺受教育的。 原来我以前管服务器的时候,每天都在做 Agent Infrastructure,只是当年没人告诉我这个词值钱。 Linux 真正舒服的地方就在这里。 你根本不用相信 Agent。 给它一个普通用户。 一个 home 目录。 该读的给读。 该写的给写。 不该碰的连看都别让它看。 CPU、内存、进程、端口、文件、网络,全都能管。 想长期跑就 systemd。 想临时跑就 tmux。 想定时跑就 cron。 想隔离就 container。 还不放心就 VM。 再不放心直接断网。 所以很多 Linux 老用户玩 Agent 上手特别快。 因为别人还在研究怎么优雅地管理一个会执行命令的 AI。 Linux 用户看了半天。 哦。 不就是又来了一个不太靠谱的普通用户吗。
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github.com/wh1te4ever/xnu_1d… I'm finally sharing my xnu_1day_practice project. It documents I've studied on my own over the past year .. Feel free to check it out if interested in researching XNU kernel vulnerability.
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New exploit: “xor dword [0xf80c2094], 1<<22” Unlocks CPU microcode, the platform security processor, system management mode, and every internal processor register, all at once, on 100 million AMD CPUs. As far as I can tell can’t be fixed. github.com/xoreaxeaxeax/skit…
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I wrote a post related to Hacksium CTF which happened this weekend. soon.haari.me/unravelling-ha… 한글로도 작성했으니 읽어봐주시면 감사하겠습니다. soon.haari.me/ko/unravelling…
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🏴‍☠️RubiyaLab pirates rocked DEF CON CTF with Jinddabi's & The Seoul Sauna Shogunate!! Proud of everyone showing sportsmanship throughout🔥 From here, we're branching into small groups to explore new directions. Excited to navigate the AI era with the spirit of CTF⛵🌊 Stay tuned!
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We can finally talk about it: We found a way to extract hidden reasoning of frontier models using a vulnerability in the APIs of every frontier AI company. We verified that our reasoning token count matches billed API thinking tokens 1:1 for most of the prompts we queried.
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PoC for a critical vulnerability in Apple macOS Screen Sharing (CVE-2026-65400). If Screen Sharing is enabled, any network attacker can exploit the bug to log in as any account, without knowing the password. We reverse engineered Apple’s unusual macOS 26.6.1 patch to understand the root cause and exploitation path. Please upgrade your macOS boxes to 26.6.1. Full technical writeup drops tomorrow.
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XSS Payload Written In Korean Language 🇰🇷 가='',나=!가+가,다=!나+가,라=가+{},마=나[가++],바=나[사=가],아=++사+가,자=라[사+아],나[자+=라[가]+(나.다+라)[가]+다[아]+마+바+나[사]+자+마+라[가]+바][자](다[가]+다[사]+나[아]+바+마+"('바로 나, 이 빌어먹을 염소한테 해킹당했지.')")() #XSS
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Wild, but expected. AUR (Arch Linux User Repository) pushes completely disabled due to influx of malware. I predicted widespread temporary shutdowns of major package repositories earlier this year. looks like it's happening!
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Quick POC using @nebusecurity CVE-2026-43499 to root my bootloader locked US S25 (SM-S931U1). Btw this works on latest fw. This phone is Android 16, June update. nebusec.ai/research/ionstack… I have detailed notes on flashing, exploitation, offset finding etc, blog post later 🖖
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NOTE: DEVELOPERS ONLY!!! IF YOU'RE AN END-USER, IT'S NOT FOR YOU!! I already shared my iOS 27 jailbreak on iPhone 11 Pro work based on @wh1te4ever's usbliter8 work. You can test it yourself. Full tutorial here: github.com/34306/usbliter8-f…
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