Advisory

A note with CVSS 4.8 for component BC-CTS-DTR was released by SAP on 13.10.2020. The correction/advisory 2939419 was described with "[CVE-2020-6370] Cross-Site Scripting (XSS) vulnerability in SAP NetWeaver (DI Design Time Repository)" and affects the system type SAP NetWeaver Development Infrastructure (NWDI).

A workaround does not exist, according to SAP Security Advisory team. It is advisable to implement the correction as part of maintenance.

The vulnerability addressed is Cross-Site Scripting (XSS) within SAP NetWeaver Development Infrastructure (NWDI).

Cross-site scripting (XSS) is the name of a class of security vulnerabilities that can occur in web-based applications. XSS combines all vulnerabilities that allow an attacker to inject HTML Markup and/or JavaScript into the front end of the affected web application.

XSS attacks can occur whenever the application dynamically creates its HTML/JavaScript/CSS content, which is passed to the user's web browser, and attacker-controlled values are used in this process. If these values are included in the generated code without proper validation and encoding, the attacker is able to include arbitrary coding snippets into the application's front end. The code is then rendered by the victim's web browser and interpreted in the victim's current authentication context.

Risk specification

SAP NetWeaver Design Time Repository (DTR) does not sufficiently encode user controlled inputs, resulting in Cross-Site Scripting (XSS) vulnerability.

Solution

The url parameters are now properly encoded to prevent a successful XSS attack.

The advisory is valid for

DI_DTR 7.11
DI_DTR 7.30 ²
DI_DTR 7.31 ²
DI_DTR 7.40 ²
DI_DTR 7.50 ³

Releated advisories

Disclaimer

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The advisories found within the SecurityBridge advisory are generated and continuously enriched by our Team at SecurityBridge and affiliated security consultants, partners, customers of the SecurityBridge Platform, SAP support, and advisory groups.

We do not disclose zero-day vulnerabilities unless a security patch has been made available to the public. In such case, the platform only provides details on which version or signature updates are available within the SecurityBridge platform in order to monitor or measure the vulnerability.

In accordance with SAP guidelines, SecurityBridge only discloses issues where the fixing security note has been released. The vulnerability platform makes no references to available exploits or Proof of Concepts (PoC). Advisories and vulnerabilities will always mention the fixing security note or hints to the corresponding SAP documentation.

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Notifications

Affected system SAP NetWeaver...

CVSS 4.8

Component BC-CTS-DTR

Patch Day2020-10

Released on2020/10/13

SAP Note 2939419

Workaround No

Advisory

Risk specification

Solution

Disclaimer

_{Affected system}
SAP NetWeaver...

_CVSS
4.8

_Component
BC-CTS-DTR

_{Patch Day}
2020-10

_{Released
on}
2020/10/13

_{SAP Note}
2939419

_Workaround
No