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CVE-2021-21447 : Vulnerability Insights and Analysis

Learn about CVE-2021-21447, a medium-severity XSS vulnerability in SAP BusinessObjects BI platform versions 410 and 420. Find out the impact, affected systems, and mitigation steps.

This article provides detailed information about CVE-2021-21447, a vulnerability in SAP BusinessObjects Business Intelligence platform versions 410 and 420 that allows an attacker to execute malicious JavaScript payloads.

Understanding CVE-2021-21447

In this section, we will delve into the specifics of the CVE-2021-21447 vulnerability in SAP BusinessObjects Business Intelligence platform.

What is CVE-2021-21447?

The CVE-2021-21447 vulnerability affects versions 410 and 420 of the SAP BusinessObjects Business Intelligence platform. It enables an authenticated attacker to inject a malicious JavaScript payload into an input field, leading to Stored Cross-Site Scripting (XSS) when viewed by a relevant user.

The Impact of CVE-2021-21447

The impact of this vulnerability is rated as medium with a CVSS base score of 5.4. If exploited, an attacker can execute arbitrary code within the context of the user's session, potentially leading to sensitive data exposure or unauthorized actions.

Technical Details of CVE-2021-21447

In this section, we will discuss the technical aspects of CVE-2021-21447, including the vulnerability description, affected systems, and exploitation mechanism.

Vulnerability Description

The CVE-2021-21447 vulnerability allows an authenticated attacker to insert a malicious JavaScript payload into an input field, leading to Stored Cross-Site Scripting when viewed by an authorized user.

Affected Systems and Versions

SAP BusinessObjects Business Intelligence platform versions 410 and 420 are affected by this vulnerability, exposing them to potential exploitation by malicious actors.

Exploitation Mechanism

To exploit CVE-2021-21447, an attacker needs to be authenticated and capable of injecting the malicious payload into the custom value input field of an Input Control. Upon successful injection, the payload can be executed by a user viewing the application content.

Mitigation and Prevention

In this final section, we will outline the steps to mitigate the risks posed by CVE-2021-21447 and prevent its exploitation.

Immediate Steps to Take

Users and administrators are advised to apply the necessary security patches provided by SAP to address the CVE-2021-21447 vulnerability promptly. Additionally, monitoring user input fields and sanitizing them to prevent script injections can help reduce the risk of exploitation.

Long-Term Security Practices

Implementing secure coding practices, conducting regular security audits, and providing security awareness training to users can enhance the overall security posture and mitigate similar vulnerabilities in the future.

Patching and Updates

Regularly updating the SAP BusinessObjects Business Intelligence platform to the latest secure versions is crucial to ensure that known vulnerabilities, including CVE-2021-21447, are addressed effectively.

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