On 10.11.2020 a security relevant correction has been released by SAP SE. The manufacturer resolves an issue within Java.
SAP Note 2979062 addresses "[CVE-2020-26820] Privilege escalation in SAP NetWeaver Application Server for Java (UDDI Server)" to prevent os command 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 part of maintenance, the team suggests.
Risk specificationThe UDDI Server of SAP NetWeaver Application Server for Java allows an attacker to execute arbitrary OS commands without having the required permissions.
With the installation of the patch shipped with Note 2979062 the arbitrary OS command execution is now prevented by using a preferred list approach.
Update 22nd December 2020: SAP has provided the fix to the version SR UI 7.40 SP 017 & SR UI 7.31 SP 022
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
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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.