Missing authentication in SAP NetWeaver AS JAVA
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-306.
Summary
SAP NetWeaver AS JAVA (P2P Cluster Communication), versions - 7.11, 7.20, 7.30, 7.31, 7.40, 7.50, allows arbitrary connections from processes because of missing authentication check, that are outside the cluster and even outside the network segment dedicated for the internal cluster communication. As result, an unauthenticated attacker can invoke certain functions that would otherwise be restricted to system administrators only, including access to system administration functions or shutting down the system completely.
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| SAP | SAP NetWeaver AS JAVA (P2P Cluster Communication) | before 7.11; before 7.20; before 7.30; before 7.31; before 7.40; before 7.50 | 7.11, 7.20, 7.30, 7.31, 7.40, 7.50 | Patch available | CNA |
- SAP NetWeaver AS JAVA (P2P Cluster Communication) VendorSAP Affected before 7.11; before 7.20; before 7.30; before 7.31; before 7.40; before 7.50 Fixed in 7.11, 7.20, 7.30, 7.31, 7.40, 7.50 Patch available CNA
CPE configurations NVD · 6
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:sap:netweaver_application_server_java:7.11:*:*:*:*:*:*:* | 7.11 | Vulnerable | SAP |
| cpe:2.3:a:sap:netweaver_application_server_java:7.20:*:*:*:*:*:*:* | 7.20 | Vulnerable | SAP |
| cpe:2.3:a:sap:netweaver_application_server_java:7.30:*:*:*:*:*:*:* | 7.30 | Vulnerable | SAP |
| cpe:2.3:a:sap:netweaver_application_server_java:7.31:*:*:*:*:*:*:* | 7.31 | Vulnerable | SAP |
| cpe:2.3:a:sap:netweaver_application_server_java:7.40:*:*:*:*:*:*:* | 7.40 | Vulnerable | SAP |
| cpe:2.3:a:sap:netweaver_application_server_java:7.50:*:*:*:*:*:*:* | 7.50 | Vulnerable | SAP |
- cpe:2.3:a:sap:netweaver_application_server_java:7.11:*:*:*:*:*:*:* Versions 7.11 Vulnerable ·SAP
- cpe:2.3:a:sap:netweaver_application_server_java:7.20:*:*:*:*:*:*:* Versions 7.20 Vulnerable ·SAP
- cpe:2.3:a:sap:netweaver_application_server_java:7.30:*:*:*:*:*:*:* Versions 7.30 Vulnerable ·SAP
- cpe:2.3:a:sap:netweaver_application_server_java:7.31:*:*:*:*:*:*:* Versions 7.31 Vulnerable ·SAP
- cpe:2.3:a:sap:netweaver_application_server_java:7.40:*:*:*:*:*:*:* Versions 7.40 Vulnerable ·SAP
- cpe:2.3:a:sap:netweaver_application_server_java:7.50:*:*:*:*:*:*:* Versions 7.50 Vulnerable ·SAP
Remediation
- Fix · CNA SAP NetWeaver AS JAVA (P2P Cluster Communication) (SAP SE) Fixed in 7.11, 7.20, 7.30, 7.31, 7.40, 7.50
Timeline
- 2026-10-02 Threatist record created from CVE-2020-26829
- 2026-10-03 Alias added: GHSA-9fv2-mhpr-vp74
References
Advisory 4
- https://wiki.scn.sap.com/wiki/pages/viewpage.action?pageId=564757079
- https://launchpad.support.sap.com/#/notes/2974774
- 20210614 Onapsis Security Advisory 2021-0013: [CVE-2020-26829] - Missing Authentication Check In SAP NetWeaver AS JAVA P2P Cluster communication
- http://packetstormsecurity.com/files/163166/SAP-Netweaver-JAVA-7.50-Missing-Authorization.html
More SAP Netweaver Application Server Java vulnerabilities
- TI-2020-05139 Missing authentication in SAP NetWeaver AS JAVA KEVCVSS 3.1CRITICAL 10.0
- TI-2016-02146 SQL injection vulnerability in the UDDI server in SAP NetWeaver J2EE Engine 7.40 allows… KEVCVSS 3.1CRITICAL 9.8
- TI-2010-05023 The Invoker Servlet on SAP NetWeaver Application Server Java platforms, possibly before… KEVCVSS 3.1CRITICAL 10.0
- TI-2017-09362 Directory traversal vulnerability in scheduler/ui/js/ffffffffbca41eb4/UIUtilJavaScriptJS… KEVCVSS 3.1HIGH 7.5
- TI-2016-03377 Directory traversal vulnerability in SAP NetWeaver AS Java 7.1 through 7.5 allows remote… KEVCVSS 3.1HIGH 7.5
- TI-2016-07786 BC-BMT-BPM-DSK in SAP NetWeaver AS JAVA 7.5 allows remote authenticated users to conduct… KEVCVSS 3.1MEDIUM 6.5
Sources
- CVE-2020-26829 · CVE Program
- CVE-2020-26829 · NVD
- FIRST EPSS
- GHSA-9fv2-mhpr-vp74 · GitHub Advisory Database · CC BY 4.0
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