GCVE-110-OSM-2022-6

Advisory PublishedCVSS 9.6/10

Vulnetix · Advisory published May 19, 2022

Repository hijacking (chainjacking) attack on popular password hashing library with 2.5M+ lifetime downloads. Compromised to exfiltrate AWS credentials. Original maintainer hautelook deleted GitHub account in August 2021. Attacker (Yunus Aydın, Istanbul-based researcher who later claimed responsibility) registered abandoned username and published malicious versions. Modified PasswordHash.php specifically targets AWS_ACCESS_KEY_ID and AWS_SECRET_ACCESS_KEY environment variables. Credentials base64-encoded and exfiltrated to anti-theft-web.herokuapp[.]com. Same attack pattern used against Python ctx package on PyPI.

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Weaknesses (CWE)

CWE-506Embedded Malicious Code

Risk Scores

CVSS 3.1

9.6/10

Critical · CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H

Affected Products

Vendor	Product	Versions	Platforms
unknown	hautelook/phpass	Malicious versions published May 19-24, 2022 (affected)	—

References

Malicious packagist package: hautelook/phpass

advisory

vendor

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