fkie_cve-2019-15316
Vulnerability from fkie_nvd
Published
2019-08-21 20:15
Modified
2024-11-21 04:28
Severity ?
Summary
Valve Steam Client for Windows through 2019-08-20 has weak folder permissions, leading to privilege escalation (to NT AUTHORITY\SYSTEM) via crafted use of CreateMountPoint.exe and SetOpLock.exe to leverage a TOCTOU race condition.
References
| ▼ | URL | Tags | |
|---|---|---|---|
| cve@mitre.org | https://amonitoring.ru/article/onemore_steam_eop_0day/ | Third Party Advisory | |
| cve@mitre.org | https://habr.com/ru/company/pm/blog/464367/ | Third Party Advisory | |
| cve@mitre.org | https://www.youtube.com/watch?v=I93aH86BUaE | Exploit, Third Party Advisory | |
| cve@mitre.org | https://www.youtube.com/watch?v=ZCHrjP0cMew | Exploit, Third Party Advisory | |
| af854a3a-2127-422b-91ae-364da2661108 | https://amonitoring.ru/article/onemore_steam_eop_0day/ | Third Party Advisory | |
| af854a3a-2127-422b-91ae-364da2661108 | https://habr.com/ru/company/pm/blog/464367/ | Third Party Advisory | |
| af854a3a-2127-422b-91ae-364da2661108 | https://www.youtube.com/watch?v=I93aH86BUaE | Exploit, Third Party Advisory | |
| af854a3a-2127-422b-91ae-364da2661108 | https://www.youtube.com/watch?v=ZCHrjP0cMew | Exploit, Third Party Advisory |
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| valvesoftware | steam_client | * | |
| microsoft | windows | - |
{
"configurations": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:valvesoftware:steam_client:*:*:*:*:*:*:*:*",
"matchCriteriaId": "4D38C019-AD92-45CA-B9C6-4EBAEB13BBDB",
"versionEndIncluding": "2019-08-20",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
},
{
"cpeMatch": [
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"criteria": "cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:*",
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"vulnerable": false
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"operator": "OR"
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],
"operator": "AND"
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "Valve Steam Client for Windows through 2019-08-20 has weak folder permissions, leading to privilege escalation (to NT AUTHORITY\\SYSTEM) via crafted use of CreateMountPoint.exe and SetOpLock.exe to leverage a TOCTOU race condition."
},
{
"lang": "es",
"value": "Valve Steam Client para Windows hasta 2019-08-20 tiene permisos de carpeta d\u00e9biles, lo que lleva a la escalada de privilegios (a NT AUTHORITY \\ SYSTEM) mediante el uso dise\u00f1ado de CreateMountPoint.exe y SetOpLock.exe para aprovechar una condici\u00f3n de carrera TOCTOU."
}
],
"id": "CVE-2019-15316",
"lastModified": "2024-11-21T04:28:26.183",
"metrics": {
"cvssMetricV2": [
{
"acInsufInfo": false,
"baseSeverity": "MEDIUM",
"cvssData": {
"accessComplexity": "MEDIUM",
"accessVector": "LOCAL",
"authentication": "NONE",
"availabilityImpact": "COMPLETE",
"baseScore": 6.9,
"confidentialityImpact": "COMPLETE",
"integrityImpact": "COMPLETE",
"vectorString": "AV:L/AC:M/Au:N/C:C/I:C/A:C",
"version": "2.0"
},
"exploitabilityScore": 3.4,
"impactScore": 10.0,
"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"source": "nvd@nist.gov",
"type": "Primary",
"userInteractionRequired": false
}
],
"cvssMetricV30": [
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"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 7.0,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
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},
"published": "2019-08-21T20:15:12.930",
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"tags": [
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"sourceIdentifier": "cve@mitre.org",
"vulnStatus": "Modified",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-367"
},
{
"lang": "en",
"value": "CWE-732"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
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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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