On 08.09.2020 a security relevant correction has been released by SAP SE. The manufacturer resolves an issue within ABAP.
SAP Note 2958563 addresses "[CVE-2020-6318] Code Injection vulnerability in SAP NetWeaver (ABAP Server) and ABAP Platform" to prevent code injection with a hot news risk for exploitation.
A workaround does not exist, according to SAP Security Advisory team. It is advisable to implement the correction as monthly patch process , the team suggests.
Risk specificationSAP NetWeaver (ABAP Server, up to release 7.40) and ABAP Platform (greater than release 7.40) allow an authenticated user to exploit these products potentially enabling to take complete control of the products, including viewing, changing, or deleting data by injecting code into the working memory which is subsequently executed by the application.
Implement the patch, wherever applicable. After installing the patch values of specific input parameters are now ignored.
The advisory 2958563 describes a problem within an ABAP based systems of a specific version. Affected versions are described below. ABAP software is deployed in various software components and is widely used within the SAP product portfolio.
SAP NetWeaver Application Server (formally known as SAP Web Application Server) is a building block of SAP NetWeaver. It is the foundation for most software products developed by SAP SE. SAP NetWeaver systems exist with Java and/or ABAP stacks. The advisory could be relevant for single and dual-stack ABAP installations.
The advisory is valid for
- SAP_BW 700-702
- SAP_BW 710-711
- SAP_BW 730
- SAP_BW 731
- SAP_BW 740
- SAP_BW 750-755 2
- SAP_BW_VIRTUAL_COMP 701
ABEX takes the security of SAP products very seriously. We very much encourage the responsible disclosure of security vulnerabilities. If you have detected a vulnerability in 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 ABEX security advisory are generated and continuously enriched by ABEX and affiliated security consultants, partners, customers of the SecurityBridge security suite, SAP support, and advisory groups.
There is no disclosure of zero-day vulnerabilities. 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, ABEX only discloses issues where the fixing security note has been released at least three months ago. 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.