Data exposure and crashes via unfiltered initialization keys
Published Jul 17, 2023 · Updated Oct 30, 2024
Prototype pollution in Automattic Mongoose before 7.3.4 allows remote attackers to expose application data or crash services. The document initialization routine iterates database-returned keys and accepts proto and constructor, allowing a renamed field to write through Object.prototype. Exploitation requires attacker-controlled document keys to reach initialization; the demonstrated path renames a stored field and triggers a subsequent query.
Summary
What happened
Prototype pollution in Automattic Mongoose before 7.3.4 allows remote attackers to expose application data or crash services. The document initialization routine iterates database-returned keys and accepts proto and constructor, allowing a renamed field to write through Object.prototype. Exploitation requires attacker-controlled document keys to reach initialization; the demonstrated path renames a stored field and triggers a subsequent query.
The record
- CVE
- CVE-2023-3696
- Published
- Jul 17, 2023
- Updated
- Oct 30, 2024
- Vendor
- Automattic
- Product
- Mongoose
- Classifications
- CWE-1321, CAPEC-77
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Jul 17, 2023CVE publishedPublication date reported by the CVE source.
- Oct 30, 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=0 <7.3.4
- Affected versionversion=unspecified <7.3.4
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
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
- Upstream document-initialization regression caseproof of concept · demonstrated
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Technologies
Your stack
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Your stack
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