Information disclosure via DGN parser over-read
Published Feb 18, 2022 · Updated Aug 4, 2024
Out-of-bounds read in Bentley Systems MicroStation CONNECT 10.16.0.80 allows remote attackers to disclose data via crafted DGN files. The DGN parser fails to validate user-controlled data before reading past the end of an allocated buffer, exposing adjacent process memory. Exploitation requires the target to visit a malicious page or open a malicious file; code execution requires chaining this disclosure with another flaw.
Summary
What happened
Out-of-bounds read in Bentley Systems MicroStation CONNECT 10.16.0.80 allows remote attackers to disclose data via crafted DGN files. The DGN parser fails to validate user-controlled data before reading past the end of an allocated buffer, exposing adjacent process memory. Exploitation requires the target to visit a malicious page or open a malicious file; code execution requires chaining this disclosure with another flaw.
The record
- CVE
- CVE-2021-46649
- Published
- Feb 18, 2022
- Updated
- Aug 4, 2024
- Vendor
- Bentley Systems
- Product
- MicroStation
- Classifications
- CWE-125, 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
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Attacks
What attackers are doing with it
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Public exploit references
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Technologies
Your stack
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Your stack
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