Code execution via JT parser buffer overwrite
Published Feb 18, 2022 · Updated Aug 4, 2024
Out-of-bounds write in the JT parser in Bentley Systems MicroStation CONNECT 10.16.0.80 allows remote attackers to execute code via a crafted JT file. The parser writes crafted file data past the end of an allocated buffer, corrupting memory in the current process. Exploitation requires the target to visit a malicious page or open a malicious JT file, after which code runs with the process user's privileges.
Summary
What happened
Out-of-bounds write in the JT parser in Bentley Systems MicroStation CONNECT 10.16.0.80 allows remote attackers to execute code via a crafted JT file. The parser writes crafted file data past the end of an allocated buffer, corrupting memory in the current process. Exploitation requires the target to visit a malicious page or open a malicious JT file, after which code runs with the process user's privileges.
The record
- CVE
- CVE-2021-46576
- Published
- Feb 18, 2022
- Updated
- Aug 4, 2024
- Vendor
- Bentley Systems
- Product
- MicroStation
- Classifications
- CWE-787, T1203, T1204.002
- Attack vector
- local
- Privileges
- unauthenticated
Timeline
How it unfolded
- Feb 18, 2022CVE publishedPublication date reported by the CVE source.
- Aug 4, 2024Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
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- Affected versionversion=10.16.0.80
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
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Weakness, pattern, technique
Public exploit references
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Technologies
Your stack
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Your stack
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