CVE-2021-34910: Bentley View DGN File Parsing Out-Of-Bounds Read Information Disclosure Vulnerability
This vulnerability allows remote attackers to disclose sensitive information on affected installations of Bentley View 10.15.0.75. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the parsing of DGN files. The issue results from the lack of proper validation of user-supplied data, which can result in a read past the end of an allocated buffer. An attacker can leverage this in conjunction with other vulnerabilities to execute arbitrary code in the context of the current process. Was ZDI-CAN-14883.
Other sources
This vulnerability allows remote attackers to disclose sensitive information on affected installations of Bentley View. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the parsing of DGN files. The issue results from the lack of proper validation of user-supplied data, which can result in a read past the end of an allocated buffer. An attacker can leverage this in conjunction with other vulnerabilities to execute arbitrary code in the context of the current process.
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2021-34910?
CVE-2021-34910 has been classified as a medium severity vulnerability due to the requirement of user interaction for exploitation.
How do I fix CVE-2021-34910?
To mitigate CVE-2021-34910, update Bentley View or MicroStation to version 10.16.02 or later.
What type of information can be disclosed by CVE-2021-34910?
CVE-2021-34910 may allow remote attackers to disclose sensitive information from affected installations.
Which software is affected by CVE-2021-34910?
The affected software includes Bentley View versions earlier than 10.16.02 and Bentley MicroStation versions earlier than 10.16.02.
Is user interaction required to exploit CVE-2021-34910?
Yes, user interaction is required, as the target must visit a malicious page or open a malicious file.