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SMAP is Pre-Disarmed: How a Stack Pivot That Shouldn't Work Revealed a Kernel-Wide Design Compromise

While working through a kernel exploit chain on Windows 11, I noticed that a stack pivot into user-mode memory didn't trigger SMAP.

I wrote up three experiments to figure out why. Short version: the normal syscall entry path arrives with RFLAGS.AC=1. SMAP is effectively disabled for any code reached through a standard IOCTL dispatch. This aligns with what MSRC documented back in 2020 (the Windows kernel simply wasn't built with SMAP in mind, and retrofitting it would touch ~2,900 locations: here)

My conclusion isn't novel here. It's just an experimental confirmation of the architectural compromise on current builds. I just wanted to shine the light on this blind spot.

submitted by /u/Important_Map6928
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Inside a Russian-speaking operator's toolkit for compromising Ukrainian IP cameras

Hunt.io researchers analyzed two open directories recovered through Attack Capture system and reconstructed the tooling one operator used to find, exploit, and view internet-exposed cameras in Ukraine.

Technical highlights:

  • A custom FastAPI/Docker project the operator named camview, which wraps the open-source Ingram scanner, brute-forces camera credentials over HTTP and RTSP (3,811 pair dictionary), and transcodes RTSP to MJPEG for browser viewing
  • Ingram targets known camera CVEs: CVE-2017-7921 and CVE-2021-36260 (Hikvision), CVE-2021-33044/33045 (Dahua), CVE-2020-25078 (D-Link), CVE-2020-25169 (Reolink)
  • The operator's logs recorded live viewing sessions from 58 Ukrainian cameras, with session lengths, frame counts, and frame rates
  • A proxy script authenticated to a compromised OpenCart admin panel and relayed the operator's traffic through the victim network
  • A second, separately operated directory was linked only by the same Ingram scanner. It chained TP-Link Archer CVEs (CVE-2024-53375, CVE-2024-57049) and MikroTik API brute-forcing to turn edge devices into SOCKS5 proxies reporting to a chisel listener on port 4444

No state attribution. Full analysis, IOCs, and ATT&CK mapping in the writeup

submitted by /u/Straight-Practice-99
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