CVE-2021-21490 : What You Need to Know
Understand the impact of CVE-2021-21490, a medium severity cross-site scripting vulnerability in SAP NetWeaver AS for ABAP (Web Survey). Learn about affected versions and mitigation steps.
A detailed analysis of CVE-2021-21490, a vulnerability in SAP NetWeaver AS for ABAP (Web Survey) that allows for reflected cross-site scripting attacks.
Understanding CVE-2021-21490
This section delves into the specifics of the CVE-2021-21490 vulnerability in SAP NetWeaver AS for ABAP (Web Survey).
What is CVE-2021-21490?
SAP NetWeaver AS for ABAP (Web Survey) is affected by a reflected cross-site scripting vulnerability due to insufficient encoding of input and output parameters. This vulnerability could be exploited by a malicious user to access sensitive data and potentially impersonate other users.
The Impact of CVE-2021-21490
The vulnerability poses a medium severity threat with a CVSS base score of 6.1. Attackers can use this exploit to access session data, leading to potential data theft and unauthorized access to sensitive information.
Technical Details of CVE-2021-21490
Here we discuss the technical aspects of the CVE-2021-21490 vulnerability in SAP NetWeaver AS for ABAP (Web Survey).
Vulnerability Description
The vulnerability arises from the failure to properly encode input and output parameters, facilitating cross-site scripting attacks.
Affected Systems and Versions
SAP NetWeaver AS for ABAP (Web Survey) versions 700, 702, 710, 711, 730, 731, 750, 752, 75A, and 75F are impacted by this vulnerability.
Exploitation Mechanism
A malicious actor can exploit this vulnerability by injecting malicious script code that gets executed when other users access the affected system, potentially leading to session hijacking and data theft.
Mitigation and Prevention
In this section, we outline the steps to mitigate and prevent exploitation of CVE-2021-21490 in SAP NetWeaver AS for ABAP (Web Survey).
Immediate Steps to Take
Users and administrators are advised to apply the latest security patches provided by SAP to address this vulnerability and prevent potential exploitation.
Long-Term Security Practices
Implement secure coding practices and conduct regular security assessments to detect and remediate vulnerabilities in SAP systems.
Patching and Updates
Regularly update SAP NetWeaver AS for ABAP (Web Survey) to ensure that known vulnerabilities are patched and security measures are up to date.