Omnibox spoofing via incorrect Loader security UI
Published Mar 9, 2021 · Updated Aug 3, 2024
Incorrect security UI in Google Chrome before 89.0.4389.72 allows remote attackers to spoof the Omnibox through crafted HTML. The Loader mishandles security UI state, but Google has not published the specific operation that lets renderer-controlled content replace the displayed URL. Exploitation requires a compromised renderer process and user interaction with the crafted page; the bounded consequence is a false URL-bar display.
Summary
What happened
Incorrect security UI in Google Chrome before 89.0.4389.72 allows remote attackers to spoof the Omnibox through crafted HTML. The Loader mishandles security UI state, but Google has not published the specific operation that lets renderer-controlled content replace the displayed URL. Exploitation requires a compromised renderer process and user interaction with the crafted page; the bounded consequence is a false URL-bar display.
The record
- CVE
- CVE-2021-21170
- Published
- Mar 9, 2021
- Updated
- Aug 3, 2024
- Vendor
- Google Cloud
- Product
- Google Chrome
- Classifications
- T1036
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Mar 9, 2021CVE publishedPublication date reported by the CVE source.
- Aug 3, 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?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=unspecified <89.0.4389.72
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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Weakness, pattern, technique
Public exploit references
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Technologies
Your stack
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Your stack
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