# Onapsis Security Advisory 2021-0006: [CVE-2020-26811] - SAP Hybris
eCommerce - SSRF in acceleratorservices module


## Impact on Business

SAP Hybris *acceleratorservices* module is vulnerable to be used to make custom
POST requests to any valid URL without authentication.


## Advisory Information

- Public Release Date: 06/14/2021
- Security Advisory ID: ONAPSIS-2021-006
- Researcher: Gaston Traberg


## Vulnerability Information

- Vendor: SAP
- Affected Components:
  - SAP Hybris eCommerce 1808
  - SAP Hybris eCommerce 1811
  - SAP Hybris eCommerce 1905
  - SAP Hybris eCommerce 2005
- Vulnerability Class: [CWE-918] Server-Side Request Forgery (SSRF)
- CVSS v3 score: 5.3 (AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N)
- Risk Level: Medium
- Assigned CVE: CVE-2020-26811
- Vendor patch Information: SAP Security NOTE 2975170


## Affected Components Description

SAP Hybris is an ecommerce platform that is used to address a family
of products involving
Customer Experience and Management. The acceleratorservices extension
provides a payment gateway
mock that integrates with the Accelerator storefront checkout process.


## Vulnerability Details

A Server Side Request Forgery without authentication, exists in SAP
Hybris acceleratorservices.
This means that anyone accessing this extension, is able to use it to
make arbitrary HTTP requests,
bypassing network restrictions.

This same issue can be used to make a self-referenced request that
will loop forever,
consuming all memory resources and locking the service until restart
(Denial of Service).


## Solution

SAP has released SAP Note 2975170 which provide patched versions of the
affected components.

The patches can be downloaded
fromhttps://service.sap.com/sap/support/notes/2975170.

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

- 25-08-2020: Onapsis provides details to SAP
- 25-08-2020: SAP provides SR ID
- 09-09-2020: SAP provides update: "Vulnerability is in progress"
- 12-10-2020: SAP provides update: "Fix in progress"
- 10-11-2021: SAP releases SAP Note fixing the issue. Vulnerability is
now closed


## References

* Onapsis blogpost: https://onapsis.com/blog/sap-security-notes-november-2020
* CVE Mitre: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-26811
* Vendor Patch: https://launchpad.support.sap.com/#/notes/2975170


## 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
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for critical
systems—ERP, CRM, PLM, HCM, SCM and BI applications—from leading
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Oracle, Salesforce and others, while keeping them protected and compliant.

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## 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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