CVE-2021-27635 Detail

Current 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.


View Analysis Description

Severity



CVSS 3.x Severity and Metrics:

NIST CVSS score
NIST: NVD
Base Score:  6.5 MEDIUM
Vector:  CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:H

Nist CVSS score does not match with CNA score
CNA:  SAP SE
Base Score:  9.0 CRITICAL
Vector:  CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:L/A:H


NVD Analysts use publicly available information to associate vector strings and CVSS scores. We also display any CVSS information provided within the CVE List from the CNA.

Note: It is possible that the NVD CVSS may not match that of the CNA. The most common reason for this is that publicly available information does not provide sufficient detail or that information simply was not available at the time the CVSS vector string was assigned.

References to Advisories, Solutions, and Tools

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Hyperlink Resource
https://launchpad.support.sap.com/#/notes/3053066 Permissions Required  Vendor Advisory 
https://wiki.scn.sap.com/wiki/pages/viewpage.action?pageId=578125999 Vendor Advisory 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-611 Improper Restriction of XML External Entity Reference cwe source acceptance level NIST  

Known Affected Software Configurations Switch to CPE 2.2

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Change History

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Quick Info

CVE Dictionary Entry:
CVE-2021-27635
NVD Published Date:
06/09/2021
NVD Last Modified:
06/16/2021
Source:
SAP SE