Security Advisories

The Onapsis Research Labs delivers regular SAP® and Oracle® vulnerability research to our ecosystem of customers, partners and the information security industry.

Onapsis security advisories enable customers to better understand the security and business implications of discovered SAP and Oracle security issues. This enables organizations to prioritize patches, updates and their remediation strategies to ensure continuity of the business. Onapsis security advisories, together with vendor patches and security notes, are available for download to provide vendors and end-users with the necessary information to mitigate advanced threats to mission-critical applications running on SAP and Oracle.

High 06/14/2021 SAP Hybris eCommerce

SAP Hybris eCommerce Exposure of Sensitive Information

Impact On Business

An attacker can generate download-links sequentially targeting "impex" directory files. As a consequence, they will be able download most of these files, potentially disclosing critical Hybris information such as credentials.


Affected Components Description

SAP Hybris is an ecommerce platform that is used to address a family of products involving Customer Experience and Management. The "medias" module is responsible for providing users a secure way to upload and access files in the system.

Affected Components:

  • SAP Hybris eCommerce 1808
  • SAP Hybris eCommerce 1811
  • SAP Hybris eCommerce 1905
  • SAP Hybris eCommerce 2005

(Check SAP Note 2975189 for detailed information on affected releases)


Vulnerability Details

When a file is uploaded into Hybris using the "medias" module, part of the destination path is generated using user-provided information and some other static context data kept by Hybris.

The user-controlled part is the only one that changes among uploaded files and therefore it's possible to sequentially craft download-links (bruteforcing) with the goal of accessing prior uploaded files. Among these files it is possible to find critical ones such as those inside the 'impex' directory.

 

Solution

SAP has released SAP Note 2975189 which provides patched versions of the affected components.

The patches can be downloaded from https://launchpad.support.sap.com/#/notes/2975189

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

  • 08/25/2020: Onapsis provides details to SAP
  • 08/25/2020: SAP provides SR ID
  • 09/09/2020: SAP provides update: "Vulnerability is in progress"
  • 10/12/2020: SAP provides update: "Fix in progress"
  • 02/09/2021: SAP releases SAP Note fixing the issue. Vulnerability is now closed

 


REFERENCES

Advisory Information

  • Public Release Date: 06/14/2021
  • Security Advisory ID: ONAPSIS-2021-0007
  • Vulnerability Submission ID: 843
  • Researcher(s): Gaston Traberg


Vulnerability Information

  • Vendor: SAP
  • Vulnerability Class: |LS|CWE-200|RS| Exposure of Sensitive Information to an Unauthorized Actor
  • CVSS v3 score: 7.5 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
  • Severity: High
  • CVE:  CVE-2020-26809
  • Vendor patch Information: SAP Security Note 2975189

ABOUT OUR RESEARCH LABS

Onapsis Research Labs provides the industry analysis of key security issues that impact mission-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


This advisory is licensed under a Creative Commons 4.0 BY-ND International License

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