BE-2021-0009: Out-of-bounds vulnerabilities in MicroStation and MicroStation-based applications
Bentley ID: BE-2021-0009
CVE ID: CVE-2021-34897, CVE-2021-34904, CVE-2021-34905, CVE-2021-34910, CVE-2021-34914, CVE-2021-46589, CVE-2021-46635, CVE-2021-46636, CVE-2021-46637, CVE-2021-46638, CVE-2021-46639, CVE-2021-46640, CVE-2021-46641, CVE-2021-46642, CVE-2021-46643, CVE-2021-46644, CVE-2021-46646, CVE-2021-46648, CVE-2021-46649, CVE-2021-46650, CVE-2021-46651, CVE-2021-46652, CVE-2021-46654
Severity: 7.8 (High)
CVSS v3.1: AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Publication date: 7th December 2021
Revision date: 4th February 2022
MicroStation and MicroStation-based applications may be affected by out-of-bounds vulnerabilities when opening maliciously crafted DGN files. Exploiting these vulnerabilities could lead to code execution.
The following vulnerabilities related to this advisory were discovered by TrendMicro ZDI: ZDI-CAN-14864, ZDI-CAN-14877, ZDI-CAN-14878, ZDI-CAN-14883, ZDI-CAN-14892, ZDI-CAN-15383, ZDI-CAN-15507, ZDI-CAN-15508, ZDI-CAN-15509, ZDI-CAN-15510, ZDI-CAN-15511, ZDI-CAN-15512, ZDI-CAN-15513, ZDI-CAN-15514, ZDI-CAN-15515, ZDI-CAN-15530, ZDI-CAN-15532, ZDI-CAN-15534, ZDI-CAN-15535, ZDI-CAN-15536, ZDI-CAN-15537, ZDI-CAN-15538, ZDI-CAN-15540.
Using an affected version of MicroStation or MicroStation-based application to open a DGN file containing maliciously crafted data can force an out-of-bounds read or write. Exploitation of these vulnerabilities within the parsing of DGN files could enable an attacker to execute arbitrary code in the context of the current process.
|Applications||Affected Versions||Mitigated Versions|
|MicroStation||Versions prior to 10.16.02.*||10.16.02.* and more recent|
|Bentley View||Versions prior to 10.16.02.*||10.16.02.* and more recent|
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 DGN files coming from trusted sources.
Thanks to Mat Powell of Trend Micro Zero Day Initiative for discovering these vulnerabilities.
|7th December 2021||First version of the advisory|
|4th February 2022||Adding new CVE numbers provided by ZDI|