Object prototype modification via recursive configuration merge
Published Apr 23, 2020 · Updated Aug 4, 2024
Prototype pollution in Ideame paypal-adaptive 0.4.2 and earlier allows attackers to modify Object.prototype via crafted configuration data. The recursive merge function enumerates configuration properties, follows proto into defaultConfig, and assigns attacker-controlled nested values to Object.prototype. A consuming application must pass attacker-controlled configuration data to the PayPal constructor; effects remain in the Node.js process and depend on available prototype gadgets.
Summary
What happened
Prototype pollution in Ideame paypal-adaptive 0.4.2 and earlier allows attackers to modify Object.prototype via crafted configuration data. The recursive merge function enumerates configuration properties, follows proto into defaultConfig, and assigns attacker-controlled nested values to Object.prototype. A consuming application must pass attacker-controlled configuration data to the PayPal constructor; effects remain in the Node.js process and depend on available prototype gadgets.
The record
- CVE
- CVE-2020-7643
- Published
- Apr 23, 2020
- Updated
- Aug 4, 2024
- Vendor
- Ideame
- Product
- paypal-adaptive
- Classifications
- CWE-1321
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Apr 23, 2020CVE 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?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=All versions including 0.4.2
What conditions does exploitation require?
What is affected?
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
- paypal-adaptive __proto__ configuration proof of conceptproof of concept · demonstrated
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Technologies
Your stack
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Your stack
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