fkie_cve-2024-6863
Vulnerability from fkie_nvd
Published
2025-03-20 10:15
Modified
2025-07-15 15:52
Severity ?
Summary
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.
References
| ▶ | URL | Tags | |
|---|---|---|---|
| security@huntr.dev | https://huntr.com/bounties/10f55937-0cba-4530-897f-2abf30ed5270 | Exploit, Third Party Advisory |
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"configurations": [
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"nodes": [
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"criteria": "cpe:2.3:a:h2o:h2o:3.46.0:*:*:*:*:*:*:*",
"matchCriteriaId": "23A801BB-59F5-4E6E-9DC6-C9D924DC28D2",
"vulnerable": true
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"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "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."
},
{
"lang": "es",
"value": "En la versi\u00f3n 3.46.0 de h2oai/h2o-3, un endpoint que expone una herramienta de cifrado personalizada permite a un atacante cifrar cualquier archivo en el servidor objetivo con una clave de su elecci\u00f3n. Esta clave tambi\u00e9n puede sobrescribirse, lo que resulta en un comportamiento similar al de un ransomware. Esta vulnerabilidad permite a un atacante cifrar archivos arbitrarios con claves de su elecci\u00f3n, lo que dificulta enormemente que el objetivo recupere las claves necesarias para el descifrado."
}
],
"id": "CVE-2024-6863",
"lastModified": "2025-07-15T15:52:34.060",
"metrics": {
"cvssMetricV30": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "LOW",
"baseScore": 6.5,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "LOW",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L",
"version": "3.0"
},
"exploitabilityScore": 3.9,
"impactScore": 2.5,
"source": "security@huntr.dev",
"type": "Secondary"
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"published": "2025-03-20T10:15:34.493",
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"sourceIdentifier": "security@huntr.dev",
"vulnStatus": "Analyzed",
"weaknesses": [
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"description": [
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"lang": "en",
"value": "CWE-749"
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"source": "security@huntr.dev",
"type": "Primary"
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}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
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