Integrity bypass via case-sensitive field matching
Published Apr 14, 2022 · Updated Aug 3, 2024
Improper handling of case sensitivity in Spring Framework 5.3.0 through 5.3.18 and 5.2.0 through 5.2.20 allows remote attackers to alter disallowed fields via crafted request parameters. DataBinder disallowedFields matching compares field and nested-property names case-sensitively, so a differently cased parameter bypasses the denylist during MVC or WebFlux binding. Exploitation requires an application using those binders and disallowed field patterns; impact is limited to unauthorized property binding and resulting integrity changes.
Summary
What happened
Improper handling of case sensitivity in Spring Framework 5.3.0 through 5.3.18 and 5.2.0 through 5.2.20 allows remote attackers to alter disallowed fields via crafted request parameters. DataBinder disallowedFields matching compares field and nested-property names case-sensitively, so a differently cased parameter bypasses the denylist during MVC or WebFlux binding. Exploitation requires an application using those binders and disallowed field patterns; impact is limited to unauthorized property binding and resulting integrity changes.
The record
- CVE
- CVE-2022-22968
- Published
- Apr 14, 2022
- Updated
- Aug 3, 2024
- Vendor
- Spring
- Product
- Spring Framework
- Classifications
- CWE-178, T1190
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Apr 14, 2022CVE 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=Spring Framework versions 5.3.0 - 5.3.18, 5.2.0 - 5.2.20, and older unsupported versions
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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