Advisory

On 12.09.2023 a security relevant correction has been released by SAP SE. The manufacturer resolves an issue within PowerDesigner.

SAP Note 3357163 addresses "[CVE-2023-40621] Code Injection vulnerability in SAP PowerDesigner Client" to prevent code injection with a medium risk for exploitation.

A workaround does exist, according to SAP Security Advisory team. It is advisable to implement the correction as none, the team suggests.

Risk specification

SAP PowerDesigner Client allows an unauthenticated attacker to inject VBScript code in document and have it opened by unsuspecting user, to have it executed by the application on behalf of user. The application has security option to disable or prompt users before untrusted scripts are executed, but this is not set as default.

Solution

Upgrade to SAP PowerDesigner Client version 16.7 SP07: Default security level raised to "Prompt To Run" Circumstances exist that prevent the timely installation of a patch provided by the manufacturer. In such cases, you may consider applying the suggested workaround as a temporary or compensating mitigation: "Please assess the workaround applicability for your SAP landscape prior to implementation. Note that this workaround is a temporary fix and is not a permanent solution. SAP strongly recommends you apply the corrections outlined in the security note, which can be done in lieu of the workaround or after the workaround is implemented. As a workaround, one of the following can be applied : let each user manually raise security level setting to "Prompt to Run" (or "Block") enforce default security level for all users on a machine by applying registry: Windows Registry Editor Version 5.00 [HKEY_LOCAL_MACHINE\SOFTWARE\Sybase\PowerDesigner 16\General] "ScriptTrustabilityCheckLevel"="Prompt"".

The advisory is valid for

SYBASE POWERDESIGNER CLIENT 16.7 ⁴

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.

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Notifications

Affected system PowerDesigner

CVSS 6.3

Component BC-SYB-PD

Patch Day2023-09

Released on2023/09/12

SAP Note 3357163

Workaround Yes

Advisory

Risk specification

Solution

Disclaimer

_{Affected system}
PowerDesigner

_CVSS
6.3

_Component
BC-SYB-PD

_{Patch Day}
2023-09

_{Released
on}
2023/09/12

_{SAP Note}
3357163

_Workaround
Yes