Headline
CVE-2022-28305: BE-2022-0008 | Bentley Systems | Infrastructure Engineering Software Company
This vulnerability allows remote attackers to execute arbitrary code on affected installations of Bentley MicroStation CONNECT 10.16.02.034. 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 OBJ files. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-16172.
BE-2022-0008: OBJ File Parsing Stack Overflow vulnerabilities in MicroStation and MicroStation-based applications
Bentley ID: BE-2022-0008
CVE ID: CVE-2022-28304, CVE-2022-28305, CVE-2022-28306
Severity: 7.8
CVSS v3.1: AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Publication date: 2022-04-05
Revision date: 2022-04-05
**Summary
**MicroStation and MicroStation-based applications may be affected by stack overflow vulnerabilities when opening maliciously crafted OBJ files. Exploiting these vulnerabilities could lead to code execution.
**Details
**The following vulnerabilities related to this advisory were discovered by TrendMicro ZDI: ZDI-CAN-16171, ZDI-CAN-16172 and ZDI-CAN-16174. Using an affected version of MicroStation or MicroStation-based application to open a OBJ file containing maliciously crafted data can force stack overflows. Exploitation of these vulnerabilities within the parsing of OBJ files could enable an attacker to execute arbitrary code in the context of the current process.
Affected Versions
Applications
Affected Versions
Mitigated Versions
MicroStation
10.16.02.* and prior versions
10.16.03.* and more recent
Bentley View
10.16.02.* and prior versions
10.16.03.* and more recent
**Recommended Mitigations
**Bentley recommends updating to the latest versions of MicroStation and MicroStation-based applications. As a general best practice, it is also recommended to only open OBJ files coming from trusted sources.
**Acknowledgement
**Thanks to Anonymous working with Trend Micro Zero Day Initiative for finding these vulnerabilities.
Revision History
Date
Description
2022-04-05
First version of this advisory
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This vulnerability allows remote attackers to execute arbitrary code on affected installations of Bentley MicroStation CONNECT 10.16.02.034. 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 OBJ files. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-16171.
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