CVE-2021-41372

A Cross-Site Scripting (XSS) and Cross-Site Request Forgery (CSRF) vulnerability exists when Power BI Report Server Template file (pbix) containing HTML files is uploaded to the server and HTML files are accessed directly by the victim. Combining these 2 vulnerabilities together, an attacker is able to upload malicious Power BI templates files to the server using the victim's session and run scripts in the security context of the user and perform privilege escalation in case the victim has admin privileges when the victim access one of the HTML files present in the malicious Power BI template uploaded. The security update addresses the vulnerability by helping to ensure that Power BI Report Server properly sanitize file uploads.

CVSS v3 7.6 HIGH
CVSS v2.0 6.8 MEDIUM

7.6^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.3 / Impact : 4.7

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact LOW

Availability Impact NONE

Scope CHANGED

6.8^/10

CVSS v2.0 : MEDIUM

Vector : AV:N/AC:M/Au:N/C:P/I:P/A:P

Exploitability : 8.6 / Impact : 6.4

Access Vector NETWORK

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-41372	Patch Vendor Advisory
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-41372	Patch Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:microsoft:power_bi_report_server:15.0.1107.165:*:*:*:*:*:*:*

History

No history.

Information

Published : 2021-11-10 01:19

Updated : 2024-11-21 06:26

NVD link : CVE-2021-41372

Mitre link : CVE-2021-41372

CVE.ORG link : CVE-2021-41372

JSON object : View

Products Affected

microsoft

power_bi_report_server

CWE

CWE-79

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

CWE-352

Cross-Site Request Forgery (CSRF)

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