HintInject

HintInject HintInject 是一款 Shellcode 嵌入与加载工具，是我在探索 PE 文件与导入目录表结构时开发的。它会接收原始 Shellcode 文件，将 Shellcode 分块放入 Hint/Name 表条目中，这些条目通过加载程序可执行文件上伪造的 DLL 导入项中的导入查找表（Import Lookup Table）可被访问。加载程序随后将这些分块合并起来执行 Shellcode。我不确定这算不算新颖的技术，但分享出来只是为了好玩。 DLL 加载过程 在解释 HintInject 的工作原理之前，我想先参考 Stack Overflow...

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

In the Linux kernel, the following vulnerability has been resolved: KVM: nSVM: Ignore nCR34:0 when loading PDPTEs from memory Ignore nCR34:0 when loading PDPTEs from memory for nested SVMs. When PAE paging is used, the bits 4:0 of the CR3 register are ignored, and thus VMRUN does not enforce a...

CVE-2026-71394

GNU Emacs for Android improperly validates the table header input in sfntreadtabledirectory in src/sfnt.c. Due to an incorrect comparison variable in the read-length check, a crafted font file that claims to contain more table directory entries than actually present causes the parser to return a...

CVE-2026-53057

In the Linux kernel, the following vulnerability has been resolved: iommu/riscv: Add IOTINVAL after updating DDT/PDT entries Add riscviommuiodiriotinval to perform required TLB and context cache invalidations after updating DDT or PDT entries, as mandated by the RISC-V IOMMU specification Section...

CVE-2026-53057 iommu/riscv: Add IOTINVAL after updating DDT/PDT entries

In the Linux kernel, the following vulnerability has been resolved: iommu/riscv: Add IOTINVAL after updating DDT/PDT entries Add riscviommuiodiriotinval to perform required TLB and context cache invalidations after updating DDT or PDT entries, as mandated by the RISC-V IOMMU specification Section...

PT-2026-51951

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the RISC-V IOMMU implementation where TLB Translation Lookaside Buffer and context cache invalidations were not performed after updating Device Directory Table DDT or...

CVE-2026-43214

A flaw was found in the Linux kernel's Kernel-based Virtual Machine KVM for x86 architectures. When reading Page Directory Pointer Table Registers PDPTRs in the getsregs2 function, the system fails to use proper Sleepable Read-Copy Update SRCU protection. This oversight can lead to incorrect memo...

SUSE CVE-2021-26347

Failure to validate the integer operand in ASP AMD Secure Processor bootloader may allow an attacker to introduce an integer overflow in the L2 directory table in SPI flash resulting in a potential denial of service...

CVE-2021-26346

Failure to validate the integer operand in ASP AMD Secure Processor bootloader may allow an attacker to introduce an integer overflow in the L2 directory table in SPI flash resulting in a potential denial of service...

CVE-2021-26346

Failure to validate the integer operand in ASP AMD Secure Processor bootloader may allow an attacker to introduce an integer overflow in the L2 directory table in SPI flash resulting in a potential denial of service...

CVE-2021-26347

Failure to validate the integer operand in ASP AMD Secure Processor bootloader may allow an attacker to introduce an integer overflow in the L2 directory table in SPI flash resulting in a potential denial of service...

CVE-2021-26388

Improper validation of the BIOS directory may allow for searches to read beyond the directory table copy in RAM, exposing out of bounds memory contents, resulting in a potential denial of service...

Windows/x86 - WinExec PopCalc PEB & Export Directory Table NullFree Dynamic Shellcode 178 bytes

; Windows/x86 - WinExec PopCalc PEB & Export Directory Table NullFree Dynamic Shellcode 178 bytes ; Description: ; This is a shellcode that pop a calc.exe. The shellcode iuses ; the PEB method to locate the baseAddress of the required module and the Export Directory Table ; to locate symbols. Als...

CVE-2020-5386

Dell EMC ECS, versions prior to 3.5, contains an Exposure of Resource vulnerability. A remote unauthenticated attacker can access the list of DT Directory Table objects of all internally running services and gain knowledge of sensitive data of the system...

CVE-2020-5386

Dell EMC ECS, versions prior to 3.5, contains an Exposure of Resource vulnerability. A remote unauthenticated attacker can access the list of DT Directory Table objects of all internally running services and gain knowledge of sensitive data of the system...

Windows/x86 - Null-Free WinExec Calc.exe Shellcode (195 bytes)

Title: Windows\x86 - Null-Free WinExec Calc.exe Shellcode 195 bytes Shellcode Author: Bobby Cooke Technique: PEB & Export Directory Table Tested On: Windows 10 Pro x86 10.0.18363 Build 18363 start: ; Create a new stack frame mov ebp, esp ; Set base stack pointer for new stack-frame sub esp, 0x20 ...

Windows/10 Pro - Dynamic Null-Free PopCalc Shellcode (223 bytes)

; Shellcode Title: Dynamic, Null-Free PopCalc Shellcode 223 Bytes ; Shellcode Author: Bobby Cooke ; Technique: PEB & Export Directory Table ; Tested On: Windows 10 Pro x86 10.0.18363 Build 18363 Create a new stack frame push ebp ; push current base pointer to the stack mov ebp, esp ; Set Base Sta...

Windows/x86 - Dynamic Bind Shell + Null-Free Shellcode (571 Bytes)

Shellcode Title: Windows/x86 - Dynamic Bind Shell + Null-Free Shellcode 571 Bytes Shellcode Author: Bobby Cooke Technique: PEB & Export Directory Table Tested On: Windows 10 Pro x86 10.0.18363 Build 18363 Shellcode Function: When executed, this shellcode creates a cmd.exe bind shell, using the...