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SAP Enterprise Portal Sensitive Data Disclosure

SAP Enterprise Portal Sensitive Data Disclosure
Posted Oct 22, 2021
Authored by Yvan Genuer | Site onapsis.com

SAP Enterprise Portal suffers from an sensitive information disclosure vulnerability in the com.sapportals.navigation.testComponent.NavigationRequestSniffer servlet.

tags | advisory, info disclosure
advisories | CVE-2021-33687
MD5 | 61f49ec4e078bf89a71c995b274bd403

SAP Enterprise Portal Sensitive Data Disclosure

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# Onapsis Security Advisory 2021-0020: SAP Enterprise Portal - Exposed
sensitive data in html body


## Impact on Business

One HTTP endpoint of the portal exposes sensitive information that could be
used
by an attacker with administrator privileges, in conjunction with other
attacks
(e.g. XSS).


## Advisory Information

- Public Release Date: 11/22/2021
- Security Advisory ID: ONAPSIS-2021-0020
- Researcher(s): Yvan Genuer


## Vulnerability Information

- Vendor: SAP
- Affected Components:
- EP-RUNTIME 7.10
- EP-RUNTIME 7.11
- EP-RUNTIME 7.20
- EP-RUNTIME 7.30
- EP-RUNTIME 7.31
- EP-RUNTIME 7.40
- EP-RUNTIME 7.50

(Check SAP Note 3059764 for detailed information on affected releases)

- Vulnerability Class: CWE-200
- CVSS v3 score: 4.5 AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:N/A:N
- Risk Level: Medium
- Assigned CVE: CVE-2021-33687
- Vendor patch Information: SAP Security NOTE 3059764


## Affected Components Description

SAP Enterprise Portal is a web frontend component for SAP Netweaver.


## Vulnerability Details

The SAP Portal servlet,
`com.sapportals.navigation.testComponent.NavigationRequestSniffer`, expose
in
the body html part, all headers values from requester. Sensitive
information,
like cookies sessions are exposed.
Example of cookie names where value are exposed:
```
saplb_*
JSESSIONID
SAPWP_active
PortalAlias
MYSAPSSO2
JSESSIONMARKID
```
It break cookies security because these sensitives data could be use and
treated
as normal body data.


## Solution

SAP has released SAP Note 3059764 which provide patched versions of the
affected components.

The patches can be downloaded from
https://launchpad.support.sap.com/#/notes/3059764.

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

- 04/26/2021: Onapsis sends details to SAP
- 04/29/2021: SAP provides internal ID
- 05/13/2021: SAP provides update
- 05/18/2021: Onapsis provides update
- 07/13/2021: SAP releases SAP Note fixing the issue.
- 11/22/2021: Advisory published.


## References

- Onapsis blogpost:
https://www.onapsis.com/blog/sap-security-patch-day-july-2021-serious-vulnerabilities-sap-netweaver-java-fixed
- CVE Mitre:
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-33687
- Vendor Patch:
https://launchpad.support.sap.com/#/notes/3059764


## 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)
<br><br><img src="../../images/license_cc.png" align="left" height="36"
width="112" >

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