Vulnerability CVE-2021-27635


Published: 2021-06-09

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.

See advisories in our WLB2 database:
Topic
Author
Date
High
SAP JAVA NetWeaver System Connections XML Injection
Pablo Artuso
23.10.2021

Type:

CWE-611

(Information Exposure Through XML External Entity Reference)

CVSS2 => (AV:N/AC:L/Au:S/C:P/I:N/A:P)

CVSS Base Score
Impact Subscore
Exploitability Subscore
5.5/10
4.9/10
8/10
Exploit range
Attack complexity
Authentication
Remote
Low
Single time
Confidentiality impact
Integrity impact
Availability impact
Partial
None
Partial
Affected software
SAP -> Netweaver application server for java 

 References:
https://launchpad.support.sap.com/#/notes/3053066
https://wiki.scn.sap.com/wiki/pages/viewpage.action?pageId=578125999

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