Misc

.goreleaser.yml

@@ -5,7 +5,8 @@ before:
     - go mod tidy
     - ./scripts/completions.sh
 builds:
-  - dir: cmd
+  - skip: true
+    dir: cmd
     env:
       - CGO_ENABLED=0
     goos:

Vagrantfile

@@ -75,10 +75,7 @@ Vagrant.configure("2") do |config|
     apt-get update && apt-get upgrade -y
     apt-get install golang-go make cmake gcc gcc-multilib g++-multilib gdb checksec -y
 
-    sh /home/vagrant/gopwn/scripts/install_capstone.sh
-    sh /home/vagrant/gopwn/scripts/install_keystone.sh
-
-    echo "/usr/local/lib" >> /etc/ld.so.conf
-    ldconfig
+    /home/vagrant/gopwn/scripts/install_capstone.sh
+    /home/vagrant/gopwn/scripts/install_keystone.sh
   SHELL
 end

elf.go

@@ -152,8 +152,8 @@ func (e *ELF) Canary() bool {
 // NX checks whether the current binary uses NX protections
 func (e *ELF) NX() bool {
 	for _, prog := range e.file.Progs {
-		if uint32(prog.Type) == uint32(0x6474e551) { // PT_GNU_STACK
-			if (uint32(prog.Flags) & uint32(elf.PF_X)) == 0 {
+		if prog.Type == elf.PT_GNU_STACK {
+			if prog.Flags&elf.PF_X == 0 {
 				return true
 			}
 		}

rop.go

@@ -0,0 +1,9 @@
+package gopwn
+
+type GadgetType int
+
+const (
+	GADGET_TYPE_ROP GadgetType = iota
+	GADGET_TYPE_JOP
+	GADGET_TYPE_SYS
+)

scripts/install_capstone.sh

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/bash
 
 CS_VERSION=4.0.2
 
@@ -12,4 +12,5 @@ cd ./capstone
 make
 make install
 
+cd $HOME
 rm -rf /tmp/capstone

scripts/install_keystone.sh

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/bash
 
 KS_VERSION=0.9.2
 
@@ -11,14 +11,14 @@ mv ./keystone-${KS_VERSION} ./keystone
 cd ./keystone
 mkdir build
 cd build
-cmake -DCMAKE_BUILD_TYPE=Release -D BUILD_LIBS_ONLY=1 -DBUILD_SHARED_LIBS=ON -G "Unix Makefiles" ..
+cmake -DCMAKE_BUILD_TYPE=Release -D BUILD_LIBS_ONLY=1 -DBUILD_SHARED_LIBS=OFF -G "Unix Makefiles" ..
 make -j8
 make install
 
+cd $HOME
 rm -rf /tmp/keystone
 
 # Keystone is installed in /usr/local, depending on your distribution (eg. Ubuntu) you might need to add /usr/local/lib to /etc/ld.so.conf. 
-if [ $(awk -F= '/^ID=/{print $2}' /etc/os-release) == "ubuntu" ]; then
-  echo "/usr/local/lib" >> /etc/ld.so.conf
+if [[ "$(awk -F= '/^ID=/{print $2}' /etc/os-release)" == "ubuntu" ]]; then
   ldconfig
 fi