PT-2022-12831 · Bentley · Bentley Microstation Connect

Mat Powell · Published 2022-01-31 · Updated 2022-02-25 · CVE-2021-46593

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

Name of the Vulnerable Software and Affected Versions Bentley MicroStation CONNECT version 10.16.0.80

Description This issue allows remote attackers to disclose sensitive information on affected installations. User interaction is required, where the target must visit a malicious page or open a malicious file. The flaw exists within the parsing of DWG files due to the lack of proper validation of user-supplied data. This can result in a read past the end of an allocated buffer, potentially allowing an attacker to execute arbitrary code in the context of the current process when combined with other vulnerabilities.

Recommendations For Bentley MicroStation CONNECT version 10.16.0.80, consider restricting the parsing of DWG files from untrusted sources until a patch is available. As a temporary workaround, avoid opening DWG files from unknown or malicious sources to minimize the risk of exploitation. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Out of bounds Read

Weakness Enumeration

CWE-125

Related Identifiers

CVE-2021-46593

ZDI-22-180

Affected Products

Bentley Microstation Connect

References · 4

• https://nvd.nist.gov/vuln/detail/CVE-2021-46593 · Security Note
• https://zerodayinitiative.com/advisories/ZDI-22-180 · Security Note
• https://osv.dev/vulnerability/CVE-2021-46593 · Vendor Advisory
• https://bentley.com/en/common-vulnerability-exposure/BE-2021-0010 · Vendor Advisory