PT-2022-12847 · Bentley · Microstation Connect

Mat Powell · Published 2022-01-31 · Updated 2022-02-28 · CVE-2021-46609

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

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

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

Description This issue allows remote attackers to execute arbitrary code 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 PDF files due to the lack of validating the existence of an object prior to performing operations on it. An attacker can leverage this to execute code in the context of the current process.

Recommendations For version 10.16.0.80, consider disabling the PDF parsing functionality until a patch is available to prevent exploitation. Restrict access to malicious pages or files to minimize the risk of attack. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Use After Free

Weakness Enumeration

CWE-416

Related Identifiers

CVE-2021-46609

ZDI-22-196

Affected Products

Microstation Connect

References · 5

• https://zerodayinitiative.com/advisories/ZDI-22-196 · Security Note
• https://osv.dev/vulnerability/CVE-2021-46609 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-46609 · Security Note
• https://bentley.com/en/common-vulnerability-exposure/BE-2021-0003 · Vendor Advisory
• https://t.me/cibsecurity/37740 · Telegram Post