Code execution or service crash via prototype pollution
Published Jul 1, 2024 · Updated Aug 2, 2024
Prototype pollution in amoyjs @amoy/common 1.0.10 allows remote attackers to alter application behavior through crafted object properties. The extend and setValue functions accept proto-bearing objects or paths without blocking prototype traversal, causing attacker-chosen attributes to be written onto Object.prototype. Exploitation requires a consuming application to pass attacker-controlled input into either function; reachable gadgets determine whether the result is code execution, cross-site scripting, or a service crash.
Summary
What happened
Prototype pollution in amoyjs @amoy/common 1.0.10 allows remote attackers to alter application behavior through crafted object properties. The extend and setValue functions accept proto-bearing objects or paths without blocking prototype traversal, causing attacker-chosen attributes to be written onto Object.prototype. Exploitation requires a consuming application to pass attacker-controlled input into either function; reachable gadgets determine whether the result is code execution, cross-site scripting, or a service crash.
The record
- CVE
- CVE-2024-38994
- Published
- Jul 1, 2024
- Updated
- Aug 2, 2024
- Vendor
- amoyjs
- Product
- @amoy/common
- Classifications
- CWE-1321
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Jul 1, 2024CVE publishedPublication date reported by the CVE source.
- Aug 2, 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=1.0.10
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
- @amoy/common prototype-pollution proof of conceptproof of concept · unverified
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Technologies
Your stack
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Your stack
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