CVE-2021-34920 : What You Need to Know
Learn about CVE-2021-34920 impacting Bentley View version 10.15.0.75. Remote attackers can execute arbitrary code via crafted JT files. See the impact, technical details, and mitigation steps.
This CVE-2021-34920 affects Bentley View version 10.15.0.75, allowing remote attackers to execute arbitrary code through crafted JT files. User interaction is required for exploitation. Here's what you need to know about this vulnerability.
Understanding CVE-2021-34920
This section dives into the details of the CVE-2021-34920 vulnerability affecting Bentley View version 10.15.0.75.
What is CVE-2021-34920?
CVE-2021-34920 allows remote attackers to execute arbitrary code by exploiting a flaw in parsing JT files. Crafted data in a JT file can trigger a buffer overflow, enabling code execution in the current process context.
The Impact of CVE-2021-34920
With a CVSS base score of 7.8, this high-severity vulnerability can result in high confidentiality, integrity, and availability impact on affected systems.
Technical Details of CVE-2021-34920
In this section, we explore the technical aspects of CVE-2021-34920.
Vulnerability Description
The vulnerability arises from the parsing of JT files, where malicious data can lead to a buffer overflow, allowing attackers to execute code in the context of the affected process.
Affected Systems and Versions
Bentley View 10.15.0.75 is the specific version impacted by this vulnerability, requiring user interaction via visiting a malicious page or opening a malicious file.
Exploitation Mechanism
To exploit CVE-2021-34920, attackers leverage crafted data in JT files to trigger a write past the end of an allocated buffer, enabling the execution of arbitrary code.
Mitigation and Prevention
Protecting systems from CVE-2021-34920 involves immediate actions and long-term security practices.
Immediate Steps to Take
Users should apply security updates promptly, avoid opening suspicious files or visiting untrusted websites, and implement security best practices.
Long-Term Security Practices
Regularly update software, utilize security tools, conduct security assessments, and educate users on safe browsing habits.
Patching and Updates
Vendor patches and updates addressing CVE-2021-34920 should be applied as soon as they are available to mitigate the risk of exploitation.