page_table_walk

物理内存中的夺旗挑战 你已经读过关于分页的内容。图表看起来也合理。四级页表，每级9位，页框，偏移量。没错。但当你遇到一个真正需要手动遍历页表的挑战时，你意识到你并不真正理解它。你只是知道它。区别很大。 对我来说有效的方法是坐在QEMU和gdb前，亲自手动完成遍历：计算每个索引，从物理内存中读取每个条目，手动跟踪每个指针。一个下午的实践比几个小时的讲座学到更多。 这是我当时记录的笔记集合。如果你仍然缺少概念方面的理解，先看Zardus的关于内核内存管理的讲座。那是理论。这是实践。...

skitter-creek-bath-salts

skitter-creek-bath-salts Desbloqueandotodo en la CPU con el scrambling de DRAM — PSP, C6, microcódigo, SMM, y cualquier otra cosa que las especificaciones omitieron. &x == &x. Normalmente. Manipula el controlador de DRAM y una dirección puede terminar donde quieras en la memoria...

cormem-read-poc

免责声明 ： 本项目仅用于教育与安全研究目的。 请仅在您拥有或已获得明确授权测试的系统上使用。 未经授权使用可能在您的司法管辖区违法。 cordrvexploit — CVE-2026-38194 漏洞 该工具演示了 CVE-2026-38194，这是一个存在于 Teledyne Digital Imaging Sapera Memory Manager v9.0.0.0 及以下版本 中的漏洞。 CORMEM.SYS 内核驱动程序暴露了 IOCTL 而未进行任何访问控制检查，允许标准无特权用户直接通过内核读取和写入任意进程内存 —— 完全绕过 Win32 API 监控。...

Astra Linux – Vulnerability in Linux

In the Linux kernel, the following vulnerability has been resolved: iommu/arm-smmu: Fixed the refcount leak in the address translation for armsmmudevice. The reference counting issue occurs in several exception handling paths of armsmmuiovatophyshard. When these error scenarios occur, the functio...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, Linux, Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: nilfs2: Fixed a failure to detect corruption of DAT files in BTree and direct mappings. The patch series is titled “nilfs2: Fix kernel bug at submitbhwbc”. This resolves a kernel bug reported by syzbot. Since there are two...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: s390/sclp: Fixed the check for NULL values in the SCCB field. The tracing code called by the SCLP interrupt handler contains early exits if the SCCB address associated with an interrupt is NULL. This check is performed after the...

CVE-2026-68470: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: validate extension-frame layout before RX Extension frames only have the extension header at the regular 802.11 header offset. The generic RX path can still reach helpers and interface dispatch code that read...

CVE-2026-56179 Windows Network Address Translation (NAT) Spoofing Vulnerability

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CVE-2026-56179: Origin Validation Error

Origin validation error in Windows Network Address Translation NAT allows an unauthorized attacker to perform spoofing over an adjacent network...

CVE-2026-72761

The CVE affects the webhook URL validator in website/notifications/webhooks.py, which uses ip.is_global after DNS resolution. IPv6 transition addresses (NAT64 64:ff9b::/96, 6to4 2002::/16, Teredo 2001:0000::/32) are categorized as globally routable by IANA, causing is_global to return True even w...

PYSEC-2026-3645 Open WebUI: Any authenticated user can reach internal services and cloud metadata via NAT64-encoded URLs

Summary Open WebUI fetches user-supplied URLs on the server for RAG URL ingestion, URL-to-markdown conversion and web-search content retrieval, and decides whether a destination is allowed by asking whether its IP address is globally routable. That test operates on the literal IPv6 address and do...

penetration-testing-windows10

Vulnerability Analysis and Penetration Testing Using Metasploi...

SUSE CVE-2026-53520

Nezha Monitoring is a self-hostable, lightweight, servers and websites monitoring and O&M tool. From version 2.0.14 to before version 2.1.0, authenticated users can claim the dashboard Host through NAT and preempt all dashboard routing. This issue has been patched in version 2.1.0...

CVE-2026-54272

The CVE affects the ip-address JavaScript library (versions 10.1.1–10.2.0). A misclassification of IPv4-mapped/NAT64 IPv6 addresses in Address6.getType() caused SSRF and trust-boundary issues by not normalizing mapped addresses to IPv4 before checks, due to the IPv6 special-use prefix table missi...

CVE-2026-63913

In the Linux kernel, the following vulnerability has been resolved: netfilter: conntrack: tcp: do not force CLOSE on invalid-seq RST without direction check An unintended behavior in the TCP conntrack state machine allows a connection to be forced into the CLOSE state using an RST packet with an...

CVE-2026-63913

The CVE-2026-63913 entry concerns the Linux kernel netfilter conntrack TCP state machine. A crafted RST with an invalid SEQ after observing a SYN could transition the conntrack entry to TCP_CONNTRACK_CLOSE, even if the RST is not a valid response to the observed SYN or its direction. This could p...

CVE-2026-53374 drm/amdgpu: zero-initialize GART table on allocation

In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: zero-initialize GART table on allocation GART TLB is flushed after unmapping but not after mapping. Since amdgpubocreatekernel does not zero-initialize the buffer, when a single PTE is written the TLB may speculativel...

CVE-2026-56181 Windows Network Address Translation (NAT) Spoofing Vulnerability

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CVE-2026-56181

CVE-2026-56181 is a Windows Network Address Translation (NAT) spoofing vulnerability caused by an origin-validation error. It enables an adjacent-network attacker to impersonate a user on the NATed network, with high impact (code/privilege implications per report). Microsoft has released updates;...

CVE-2026-56181 Windows Network Address Translation (NAT) Spoofing Vulnerability

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