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CVE-2022-28310: BE-2022-0009 | 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 SKP files. The issue results from the lack of validating the existence of an object prior to performing operations on the object. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-16339.

CVE
#vulnerability#zero_day

BE-2022-0009: SKP File Parsing Use-After-Free vulnerabilities in MicroStation and MicroStation-based applications

Bentley ID: BE-2022-0009
CVE ID: CVE-2022-28303, CVE-2022-28310
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 use-after-free vulnerabilities when opening maliciously crafted SKP files. Exploiting these vulnerabilities could lead to code execution.

**Details
**The following vulnerabilities related to this advisory were discovered by TrendMicro ZDI: ZDI-CAN-16280 and ZDI-CAN-16339. Using an affected version of MicroStation or MicroStation-based application to open a SKP file containing maliciously crafted data can force a use-after-free vulnerability. Exploitation of these vulnerabilities within the parsing of SKP 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 SKP 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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