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Date: Mon, 14 Jun 2021 13:34:23 -0300
From: Onapsis Research via Fulldisclosure <fulldisclosure@...lists.org>
To: fulldisclosure@...lists.org
Subject: [FD] Onapsis Security Advisory 2021-0012: SAP Manufacturing
 Integration and Intelligence lack of server side validations leads to RCE

# Onapsis Security Advisory 2021-0012: SAP Manufacturing Integration
and Intelligence lack of server side validations leads to RCE

## Impact on Business

By abusing a Code Injection in SAP MII, an authenticated user with SAP
XMII Developer
privileges could execute code (including OS commands) on the server.
Thus, they would
be able to do everything a SAP Administrator is able to do. Some
possible actions are:

* Access to the SAP databases and read/modify/erase any record in any table
* Use these servers to pivot to other servers
* Place malware to later infect end users
* Modify network configurations and potentially affect internal networks

## Advisory Information

* Public Release Date: 06/14/2021
* Security Advisory ID: ONAPSIS-2021-0012
* Researcher(s): Nicolas Raus

## Vulnerability Information

* Vendor: SAP
* Affected Components:
  * XMII 15.1 lower than SP006 PL 000062
  * XMII 15.2 lower than SP003 PL 000038
  * XMII 15.3 lower than SP001 PL 000022
  * XMII 15.4 lower than SP001 PL 000007

  (Check SAP Note #3022622 for detailed information on affected releases)

* Vulnerability Class: [CWE-94] Improper Control of Generation of Code
('Code Injection')
* CVSS v3 score: 9.9 (AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H)
* Risk Level: Critical
* Assigned CVE: CVE-2021-21480
* Vendor patch Information: SAP Security Note #3022622

## Affected Components Description

SAP MII is an SAP NetWeaver AS Java based platform that enables
real-time production monitoring
and provides extensive data analysis tools. It functions as a data hub
between SAP ERP and
operational applications such as manufacturing execution systems
(MES). The software collects
data from production machinery, delivering real-time insights into its
performance and efficiency.

Affected components:

* XMII 15.1 lower than SP006 PL 000062
* XMII 15.2 lower than SP003 PL 000038
* XMII 15.3 lower than SP001 PL 000022
* XMII 15.4 lower than SP001 PL 000007

(Check SAP Note #3022622 for detailed information on affected releases)

## Vulnerability Details

An integral part of SAP MII is the Self-Service Composition
Environment (SSCE) that can
be used to design dashboards by simple drag and drop.  This dashboard
creation functionality
applies some client side validations which are then not performed on
the back-end, this
situation could allow an attacker to craft a malicious request with
executable code which
will be stored on the server. When such an infected dashboard is
opened in production by a
user having a minimum of authorizations, the malicious content gets
executed, leading to
remote code execution in the server.

## Solution

SAP has released SAP Note #3022622 which provide patched versions of the
affected components.

The patches can be downloaded from
<https://launchpad.support.sap.com/#/notes/3022622>.

Onapsis strongly recommends SAP customers to download the related
security fixes and apply them to the affected components in order to
reduce business risks.

## Report Timeline

* 02-01-2021: Onapsis sends details to SAP
* 02-04-2021: SAP provides internal ID
* 02-08-2021: SAP provides update: "In progress"
* 03-08-2021: SAP provides update: Vulnerability fixed SAP Security
note released: 3022622

## References

* Onapsis Blog Post: https://onapsis.com/blog/sap-security-notes-march-2021
* CVE Mitre: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21480
* Vendor Patch: https://launchpad.support.sap.com/#/notes/3022622

## About Onapsis Research Labs

Onapsis Research Labs provides the industry analysis of key security
issues that impact business-critical systems and applications.
Delivering frequent and timely security and compliance advisories with
associated risk levels, Onapsis Research Labs combine in-depth knowledge
and experience to deliver technical and business-context with sound
security judgment to the broader information security community.

Find all reported vulnerabilities at
<https://github.com/Onapsis/vulnerability_advisories>

## About Onapsis, Inc

Onapsis protects the mission-critical applications that run the global economy,
from the core to the cloud. The Onapsis Platform uniquely delivers actionable
insight, secure change, automated governance and continuous monitoring
for critical
systems—ERP, CRM, PLM, HCM, SCM and BI applications—from leading
vendors such as SAP,
Oracle, Salesforce and others, while keeping them protected and compliant.

For more information, connect with us on Twitter or LinkedIn, or visit us at
<https://www.onapsis.com>.


## License
This advisory is licensed under a [Creative Commons 4.0 BY-ND
International License](https://creativecommons.org/licenses/by-nd/4.0/legalcode)

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