CVE-2021-34938 : Security Advisory and Response
Learn about CVE-2021-34938, a high severity vulnerability in Bentley View 10.15.0.75 that allows remote attackers to execute arbitrary code. Understand the impact, affected systems, and mitigation steps.
This vulnerability allows remote attackers to execute arbitrary code on affected installations of Bentley View 10.15.0.75, requiring user interaction. The flaw exists within the parsing of JT files due to improper validation of user-supplied data length.
Understanding CVE-2021-34938
This CVE concerns a high severity heap-based buffer overflow vulnerability affecting Bentley View 10.15.0.75.
What is CVE-2021-34938?
CVE-2021-34938 allows remote attackers to execute arbitrary code on systems running Bentley View 10.15.0.75. Attackers can leverage this flaw by tricking users into visiting a malicious page or opening a malicious file.
The Impact of CVE-2021-34938
The vulnerability has a high severity rating and can lead to remote code execution in the context of the current user.
Technical Details of CVE-2021-34938
This section provides detailed technical insights into the vulnerability.
Vulnerability Description
CVE-2021-34938 is a heap-based buffer overflow issue found in the parsing of JT files due to inadequate validation of user-supplied data length.
Affected Systems and Versions
The vulnerability affects Bentley View version 10.15.0.75.
Exploitation Mechanism
To exploit CVE-2021-34938, attackers need to entice users to interact with malicious content, such as visiting a compromised webpage or opening a corrupted file.
Mitigation and Prevention
Protecting systems from CVE-2021-34938 requires immediate actions and long-term security practices.
Immediate Steps to Take
Users should avoid interacting with untrusted or suspicious content, including links and files from unknown sources.
Long-Term Security Practices
Implementing security best practices, such as keeping software up to date, using security tools, and educating users on safe browsing habits, can help prevent similar vulnerabilities.
Patching and Updates
Vendors may release patches or updates to address CVE-2021-34938. It is crucial to apply these patches promptly to mitigate the risk of exploitation.