CVE-2021-27623 : Security Advisory and Response
Explore the details of CVE-2021-27623, a vulnerability in SAP Internet Graphics Service allowing system crash. Learn about impact, affected versions, and mitigation steps.
A detailed analysis of CVE-2021-27623, a vulnerability in SAP Internet Graphics Service that allows an unauthenticated attacker to trigger a system crash.
Understanding CVE-2021-27623
This section delves into the nature of the CVE-2021-27623 vulnerability and its potential impact.
What is CVE-2021-27623?
The CVE-2021-27623 vulnerability exists in SAP Internet Graphics Service, where an attacker can exploit insufficient input validation to trigger a memory corruption error, leading to a system crash.
The Impact of CVE-2021-27623
This vulnerability allows an unauthenticated attacker to render the system unavailable by triggering an internal memory corruption error, resulting in a system crash.
Technical Details of CVE-2021-27623
Explore the technical aspects of CVE-2021-27623, including the vulnerability description, affected systems, and exploitation mechanism.
Vulnerability Description
The vulnerability arises from insufficient input validation in method CXmlUtility::CheckLength(), enabling attackers to crash the system via a malicious IGS request.
Affected Systems and Versions
SAP Internet Graphics Service versions < 7.20, < 7.20EXT, < 7.53, < 7.20_EX2, and < 7.81 are impacted by this vulnerability.
Exploitation Mechanism
An unauthenticated attacker can trigger a system crash by submitting a malicious IGS request over the network due to inadequate input validation.
Mitigation and Prevention
Learn how to mitigate the risks associated with CVE-2021-27623 and prevent potential exploitation.
Immediate Steps to Take
Immediate steps include applying relevant patches, monitoring network traffic for suspicious activity, and restricting access to vulnerable systems.
Long-Term Security Practices
Regular security training, implementing secure coding practices, and conducting routine vulnerability assessments can enhance long-term security.
Patching and Updates
Ensure that systems are promptly updated with the latest security patches from SAP to address the CVE-2021-27623 vulnerability.