PT-2021-14538 · Microsoft+1 · Office+2

Published 2021-01-12 · Updated 2021-01-14 · CVE-2021-21470

Positive Technologies (AI Summary)

CVSS v3.1

4.4

Medium

Base vector

AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L

Name of the Vulnerable Software and Affected Versions SAP EPM Add-in for Microsoft Office version 1010 SAP EPM Add-in for SAP Analysis Office version 2.8

Description The issue allows an authenticated attacker with user privileges to parse malicious XML files, potentially resulting in XXE-based attacks in applications that accept attacker-controlled XML configuration files. This occurs because the logging service does not disable XML external entities when parsing configuration files. A successful exploit would have limited impact on the integrity and availability of the application.

Recommendations For SAP EPM Add-in for Microsoft Office version 1010, update to a version that disables XML external entities in the logging service to prevent XXE-based attacks. For SAP EPM Add-in for SAP Analysis Office version 2.8, update to a version that disables XML external entities in the logging service to prevent XXE-based attacks. As a temporary workaround, consider restricting the parsing of XML configuration files to trusted sources until a patch is available.

Fix

XXE

Weakness Enumeration

CWE-611

Related Identifiers

CVE-2021-21470

Affected Products

Office

Sap Epm Add-In For Microsoft Office

Sap Epm Add-In For Sap Analysis Office

References · 5

• https://wiki.scn.sap.com/wiki/pages/viewpage.action?pageId=564760476 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2021-21470 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-21470 · Security Note
• https://t.me/cvenotify/8527 · Telegram Post
• https://launchpad.support.sap.com/#/notes/3000291 · Note