Advisory

On 14.09.2021 a security relevant correction has been released by SAP SE. The manufacturer resolves an issue within SAP GUI / Frontend.

SAP Note 3060621 addresses "[CVE-2021-38150] Information disclosure in SAP Business Client" to prevent information disclosure with a medium risk for exploitation.

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

Information disclosure is when an application fails to properly protect sensitive and confidential information from parties that are not supposed to have access to the subject matter in normal circumstances.
Carefully review every information disclosure vulnerablity in regards to disclosure obligations post-GDPR for ‘Personal data’ under the Data Protection Act 2018.

Risk specification

With access to a victim's local memory or the local memory dump, an attacker is able to read high sensitive data. This would allow the attacker to compromise the corresponding backend for which the credentials are valid.

Solution

Providing passwords in SAP Business Client startup URLs (sap-nwbc://) is not possible anymore by default.

The advisory is valid for

BC-WD-CLT-BUS 7.0 ⁴
BC-WD-CLT-BUS 7.70 ³

Releated advisories

Disclaimer

SecurityBridge takes the security of SAP products very seriously. We very much encourage the responsible disclosure of security vulnerabilities. If you have detected a vulnerability concerning one of the SAP software products – either in the latest or in a former product version follow the guidelines and processes in accordance with the SAP portal page “Report a Security Vulnerability to SAP”.

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 GUI / Frontend

CVSS 6.1

Component BC-FES-BUS-DSK

Patch Day2021-09

Released on2021/09/14

SAP Note 3060621

Workaround No

Advisory

Risk specification

Solution

Disclaimer

_{Affected system}
SAP GUI / Frontend

_CVSS
6.1

_Component
BC-FES-BUS-DSK

_{Patch Day}
2021-09

_{Released
on}
2021/09/14

_{SAP Note}
3060621

_Workaround
No