Malicious code execution via abandoned S3 bucket
Published Nov 16, 2023 · Updated Aug 2, 2024
Supply-chain compromise in H2O-3 allows attackers to deliver malicious code through an abandoned Amazon S3 bucket. The R client constructs an h2o.jar download URL under the h2o-release bucket and accepts a checksum fetched from the same location, while the disclosed bucket reference was no longer controlled by H2O.ai. Exploitation requires a user to install or initialize the R package so that attacker-controlled artifacts are retrieved, enabling code execution in that user's context.
Summary
What happened
Supply-chain compromise in H2O-3 allows attackers to deliver malicious code through an abandoned Amazon S3 bucket. The R client constructs an h2o.jar download URL under the h2o-release bucket and accepts a checksum fetched from the same location, while the disclosed bucket reference was no longer controlled by H2O.ai. Exploitation requires a user to install or initialize the R package so that attacker-controlled artifacts are retrieved, enabling code execution in that user's context.
The record
- CVE
- CVE-2023-6017
- Published
- Nov 16, 2023
- Updated
- Aug 2, 2024
- Vendor
- H2O.ai
- Product
- H2O-3
- Classifications
- CWE-840, T1195.002
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Nov 16, 2023CVE 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?
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- Affected versionversion=unspecified <=latest
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.
Public exploit references
- Huntr bounty report for CVE-2023-6017proof of concept · unverified
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Technologies
Your stack
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Your stack
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