SAP Fiori Launchpad Cross Site Scripting

2022.06.22
Credit: Yvan Genuer
Risk: Low
Local: No
Remote: Yes
CWE: CWE-79


CVSS Base Score: 4.3/10
Impact Subscore: 2.9/10
Exploitability Subscore: 8.6/10
Exploit range: Remote
Attack complexity: Medium
Authentication: No required
Confidentiality impact: None
Integrity impact: Partial
Availability impact: None

# Onapsis Security Advisory 2022-0005: Cross-Site Scripting (XSS) vulnerability in SAP Fiori launchpad ## Impact on Business Impact depends on the victim's privileges. In most cases, a successful attack allows an attacker to hijack a session, or force the victim to perform undesired requests in the SAP System (CSRF) as well as redirected to arbitrary web site (Open Redirect). ## Advisory Information - Public Release Date: 06/21/2022 - Security Advisory ID: ONAPSIS-2022-0005 - Researcher(s): Yvan Genuer ## Vulnerability Information - Vendor: SAP - Affected Components: - SAP\_UI 753 - SAP\_UI 754 - SAP\_UI 755 - SAP\_UI 756 - SAP\_BASIS 787 (Check SAP Note 3149805 for detailed information on affected releases) - Vulnerability Class: CWE-79 - CVSS v3 score: 8.2 AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:H/A:N - Risk Level: High - Assigned CVE: CVE-2022-26101 - Vendor patch Information: SAP Security NOTE 3149805 ## Affected Components Description SAP Fiori launchpad is the entry point to ABAP platform for SAP Fiori apps on mobile and desktop devices. ## Vulnerability Details During the navigation in SAP Fiori Launchpad, it is possible to provide a custom theme name using the url parameter ```sap-theme```. This parameter has an option to provide the path to a .css file, which it is used directly in the page generation. This optional input is not sufficiently sanitized, allowing an attacker to control and craft any kind of html payload in the page requested. ## Solution SAP has released SAP Note 3149805 which provide patched versions of the affected components. The patches can be downloaded from https://launchpad.support.sap.com/#/notes/3149805. 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 - 01/28/2022: Onapsis sends details to SAP - 02/09/2022: SAP provides internal ID - 03/08/2022: SAP releases SAP Note fixing the issue. - 06/21/2022: Advisory published ## References - Onapsis blogpost: https://onapsis.com/blog/sap-security-patch-day-march-2022-sap-focused-run-affec ted-several-vulnerabilities - CVE Mitre: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-26101 - Vendor Patch: https://launchpad.support.sap.com/#/notes/3149805 - Vendor FAQ: https://launchpad.support.sap.com/#/notes/3157089 ## 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. -- This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this email in error please notify the system manager. This message contains confidential information and is intended only for the individual named. If you are not the named addressee you should not disseminate, distribute or copy this e-mail. Please notify the sender immediately by e-mail if you have received this e-mail by mistake and delete this e-mail from your system. If you are not the intended recipient you are notified that disclosing, copying, distributing or taking any action in reliance on the contents of this information is strictly prohibited.


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