CVE-2021-32987 : Vulnerability Insights and Analysis
CVE-2021-32987 poses a high-severity risk in AVEVA SuiteLink Server, enabling attackers to trigger a null pointer dereference. Learn about the impact, affected systems, and mitigation steps.
A vulnerability has been identified in AVEVA SuiteLink Server that could allow an attacker to exploit a null pointer dereference. This could result in a denial of service condition on affected systems.
Understanding CVE-2021-32987
This vulnerability involves a null pointer dereference in the SuiteLink server when processing command 0x0b, potentially leading to service disruption.
What is CVE-2021-32987?
CVE-2021-32987 is a high-severity vulnerability affecting various AVEVA products, allowing an attacker to trigger a null pointer dereference in the SuiteLink server.
The Impact of CVE-2021-32987
The vulnerability can be exploited remotely with a low attack complexity, causing a denial of service with a high availability impact, but no confidentiality or integrity impact.
Technical Details of CVE-2021-32987
The vulnerability is rated with a CVSS base score of 7.5, indicating a high severity issue with low attack complexity over the network without requiring privileges.
Vulnerability Description
The issue involves a null pointer dereference in the SuiteLink server during the processing of command 0x0b.
Affected Systems and Versions
Products affected include AVEVA System Platform 2020, AVEVA InTouch 2020, AVEVA Historian 2020, AVEVA Communication Drivers Pack 2020, AVEVA Batch Management 2020, and AVEVA MES 2014.
Exploitation Mechanism
Attackers can exploit this vulnerability remotely via the network without user interaction, resulting in a high impact on system availability.
Mitigation and Prevention
Organizations using affected AVEVA products should take immediate action to secure their systems and prevent potential exploitation.
Immediate Steps to Take
Apply the corresponding security update provided by AVEVA to address the vulnerability promptly and reduce the risk of exploitation.
Long-Term Security Practices
Implement a robust security policy, including regular monitoring, network segmentation, and access controls to mitigate future vulnerabilities.
Patching and Updates
Refer to AVEVA security bulletin AVEVA-2021-003 for detailed information on the security update and activation-based licensing requirements.