Vulnerability CVE-2021-34888


Published: 2022-01-13

Description:
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 JT 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-14841.

Type:

CWE-125

(Out-of-bounds Read)

CVSS2 => (AV:N/AC:M/Au:N/C:P/I:N/A:N)

CVSS Base Score
Impact Subscore
Exploitability Subscore
4.3/10
2.9/10
8.6/10
Exploit range
Attack complexity
Authentication
Remote
Medium
No required
Confidentiality impact
Integrity impact
Availability impact
Partial
None
None
Affected software
Bentley -> Bentley view 
Bentley -> Microstation 

 References:
https://www.zerodayinitiative.com/advisories/ZDI-21-1477/
https://www.bentley.com/en/common-vulnerability-exposure/BE-2021-0005

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