CVE-2024-6863Medium· 6.5▾ SunlitH2O Vulnerable to Execution of Arbitrary Files
▾ Sunlit zone — Low / medium · no exploitation signal
impact 35.8 · likelihood 0.1 · exploitation 0
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Exploit-prediction probability, daily snapshots since Jul 30.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via OSV
Last analysed / modified upstream
0.3%
0.3% → 0.4%
In h2oai/h2o-3 version 3.46.0, an endpoint exposing a custom EncryptionTool allows an attacker to encrypt any files on the target server with a key of their choosing. The chosen key can also be overwritten, resulting in ransomware-like behavior. This vulnerability makes it possible for an attacker to encrypt arbitrary files with keys of their choice, making it exceedingly difficult for the target to recover the keys needed for decryption.
h2o >= 3.32.1.2, <= 3.46.0ai.h2o:h2o-core >= 3.32.1.2, <= 3.46.0Refer to the advisory for the patched release.
Connected by shared product, vendor, weakness, or advisory.
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