Medium Severity
Affected system
Java
CVSS
6.9
Component
BC-JAS-COR-RMT
Patch Day
2020-06
Released on
2020/06/09
SAP Note
2878568
Workaround
No
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Advisory

A note with CVSS 6.9 for component BC-JAS-COR-RMT was released by SAP on 09.06.2020. The correction/advisory 2878568 was described with "[CVE-2020-6263] Authentication Bypass in Standalone Clients connecting to SAP NetWeaver AS Java via P4 Protocol" and affects the system type Java.

A workaround does not exist, according to SAP Security Advisory team. It is advisable to implement the correction as monthly patch process.

The vulnerability addressed is missing authentication check denial of service (dos) within Java.

Risk specification

The P4 Client implementation does open an unauthenticated Server Socket allowing an unnatuthenticated attacker to obtain Information about the deployment or make the component unavailable for use by legitimate clients.

Solution

The Server Socker is now deactivated by default. If it is needed, it can be reactivated via a Java property or an enviornment vairable.

Affected System

SAP Netweaver Application Server Java is part of the SAP NetWeaver Application Platform. It provides the complete infrastructure for deploying and running Java applications.

The advisory is valid for

 

Disclaimer

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.

 

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