Vulnerability · Published Jun 9, 2021 · Assigned by sap
CVE-2021-27635
Critical 9.0
In plain English
A critical-severity security flaw in SAP NetWeaver AS for JAVA from SAP SE. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.6% (higher than 76% of all known vulnerabilities).
Official description
SAP NetWeaver AS for JAVA, versions - 7.20, 7.30, 7.31, 7.40, 7.50, allows an attacker authenticated as an administrator to connect over a network and submit a specially crafted XML file in the application because of missing XML Validation, this vulnerability enables attacker to fully compromise confidentiality by allowing them to read any file on the filesystem or fully compromise availability by causing the system to crash. The attack cannot be used to change any data so that there is no compromise as to integrity.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| SAP SE | SAP NetWeaver AS for JAVA | < 7.20< 7.30< 7.31< 7.40< 7.50 |
References
- https://wiki.scn.sap.com/wiki/pages/viewpage.action?pageId=578125999 x_refsource_MISC
- https://launchpad.support.sap.com/#/notes/3053066 x_refsource_MISC
- 20211022 Onapsis Security Advisory 2021-0016: XXE in SAP JAVA NetWeaver System Connections mailing-list, x_refsource_FULLDISC
- http://packetstormsecurity.com/files/164592/SAP-JAVA-NetWeaver-System-Connections-XML-Injection.html x_refsource_MISC