Advisory

SAP takes the security of its vast product portfolio very seriously and thus releases security fixes for vulnerabilities reported by external researchers and their customers every second Tuesday of the month.

SAP Note 3135581 was released on 11.01.2022 and deals with "Update 3 to Security Note 3130521: [CVE-2021-44228] Remote Code Execution vulnerability associated with Apache Log4j 2 component used in Java Web Service Adapter of SAP NetWeaver Process Integration" within Java. We advice you to follow the instructions, to resolve code injection with a medium potential for exploitation in component BC-XI-CON-JWS.

According to SAP Security Advisory team a workaround exists. It is advisable to implement the correction as monthly patch process.

Risk specification

The component log4j allows an attacker to execute malicious code when he is in control of log messages or message parameters.

Solution

The applications dependencies were updated to a newer release that no longer contains these log4j vulnerabilities. Alternativly, the consulting team has proposed the following: "You can apply the workaround procedure explained in note 3130521. If possible, set the java parameter log4j2.formatMsgNoLookups=true". The suggestion may be considered, as a workaround or compensating mitigation. We recommend installing/applying the correction wherever possible and as soon as possible. Base your decision on whether or not to apply the patch on your companies and systems risk perspective and consider the provided CVSS 6.6 score.

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 AS Java Home: SAP Netweaver Application Server Java wiki
A dedicated SAP NetWeaver 7.40 Application Server for Java Security Guide exists.

The advisory is valid for

SAP_XIAF 7.50 ¹¹

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 Java

CVSS 6.6

Component BC-XI-CON-JWS

Patch Day2022-01

Released on2022/01/11

SAP Note 3135581

Workaround Yes

Advisory

Risk specification

Solution

Affected System

Disclaimer

_{Affected system}
Java

_CVSS
6.6

_Component
BC-XI-CON-JWS

_{Patch Day}
2022-01

_{Released
on}
2022/01/11

_{SAP Note}
3135581

_Workaround
Yes