Go to homepageCyberStrike

Menu

Star on GitHub · 3.2k
Sign inDownload

CVE-2021-27635

6.5 · MEDIUM

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 app…

Published Jun 9, 2021CWE-611EPSS 1.59%

Overview

CVE-2021-27635 is a medium-severity vulnerability. It was published on June 9, 2021 and has a CVSS 3.1 base score of 6.5 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 6.5, rated MEDIUM. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

Technical 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.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refpacketstormsecurity.com/files/164592/SAP-JAVA-NetWeaver-System-Connections-XML-Injection.htmlRefseclists.org/fulldisclosure/2021/Oct/28Reflaunchpad.support.sap.com/#/notes/3053066Refwiki.scn.sap.com/wiki/pages/viewpage.action?pageId=578125999Refpacketstormsecurity.com/files/164592/SAP-JAVA-NetWeaver-System-Connections-XML-Injection.htmlRefseclists.org/fulldisclosure/2021/Oct/28Reflaunchpad.support.sap.com/#/notes/3053066Refwiki.scn.sap.com/wiki/pages/viewpage.action?pageId=578125999

How CyberStrike helps

Frequently asked questions

What is CVE-2021-27635?

CVE-2021-27635 is a medium-severity vulnerability. It was published on June 9, 2021 and has a CVSS 3.1 base score of 6.5 (MEDIUM).

How severe is CVE-2021-27635?

This vulnerability has a CVSS 3.1 base score of 6.5, rated MEDIUM. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2021-27635?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2021-27635?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2021-27635 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

Related MEDIUM CVEs from 2021

View all
Browse by year2026202520242023202220212020201920182017201620152014201320122011201020092008200720062005200420032002200120001999