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CVE-2022-28307: BE-2022-0005 | Bentley Systems | Infrastructure Engineering Software Company

This vulnerability allows remote attackers to execute arbitrary code on affected installations of Bentley View 10.16.02.022. 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 DXF files. Crafted data in a DXF file can trigger a read past the end of an allocated buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-16306.

CVE
#vulnerability#zero_day

BE-2022-0005: DXF File Parsing Out-of-bounds Read Vulnerabilities in MicroStation and MicroStation-based applications

Bentley ID: BE-2022-0005
CVE ID: CVE-2022-28307, CVE-2022-28311
Severity: 3.3
CVSS v3.1: AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
Publication date: 2022-04-05
Revision date: 2022-04-05

**Summary
**MicroStation and MicroStation-based applications may be affected by out-of-bounds read vulnerabilities when opening maliciously crafted DXF files. Exploiting these vulnerabilities could lead to information disclosure.

**Details
**The following vulnerabilities related to this advisory were discovered by TrendMicro ZDI: ZDI-CAN-16306 and ZDI-CAN-16341. Using an affected version of MicroStation or MicroStation-based application to open a DXF file containing maliciously crafted data can force an out-of-bounds read. Exploitation of these vulnerabilities within the parsing of DXF files could enable an attacker to read information 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 DXF files coming from trusted sources.

**Acknowledgement
**Thanks to Mat Powell of Trend Micro Zero Day Initiative for discovering these vulnerabilities.

Revision History

Date

Description

2022-04-05

First version of this advisory

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