gsd-2018-13405
Vulnerability from gsd
Modified
2023-12-13 01:22
Details
The inode_init_owner function in fs/inode.c in the Linux kernel through 3.16 allows local users to create files with an unintended group ownership, in a scenario where a directory is SGID to a certain group and is writable by a user who is not a member of that group. Here, the non-member can trigger creation of a plain file whose group ownership is that group. The intended behavior was that the non-member can trigger creation of a directory (but not a plain file) whose group ownership is that group. The non-member can escalate privileges by making the plain file executable and SGID.
Aliases
Aliases
{
"GSD": {
"alias": "CVE-2018-13405",
"description": "The inode_init_owner function in fs/inode.c in the Linux kernel through 3.16 allows local users to create files with an unintended group ownership, in a scenario where a directory is SGID to a certain group and is writable by a user who is not a member of that group. Here, the non-member can trigger creation of a plain file whose group ownership is that group. The intended behavior was that the non-member can trigger creation of a directory (but not a plain file) whose group ownership is that group. The non-member can escalate privileges by making the plain file executable and SGID.",
"id": "GSD-2018-13405",
"references": [
"https://www.suse.com/security/cve/CVE-2018-13405.html",
"https://www.debian.org/security/2018/dsa-4266",
"https://access.redhat.com/errata/RHSA-2019:4164",
"https://access.redhat.com/errata/RHSA-2019:4159",
"https://access.redhat.com/errata/RHSA-2019:2730",
"https://access.redhat.com/errata/RHSA-2019:2696",
"https://access.redhat.com/errata/RHSA-2019:2566",
"https://access.redhat.com/errata/RHSA-2019:2476",
"https://access.redhat.com/errata/RHSA-2019:0717",
"https://access.redhat.com/errata/RHSA-2018:3096",
"https://access.redhat.com/errata/RHSA-2018:3083",
"https://access.redhat.com/errata/RHSA-2018:2948",
"https://ubuntu.com/security/CVE-2018-13405",
"https://advisories.mageia.org/CVE-2018-13405.html",
"https://linux.oracle.com/cve/CVE-2018-13405.html"
]
},
"gsd": {
"metadata": {
"exploitCode": "unknown",
"remediation": "unknown",
"reportConfidence": "confirmed",
"type": "vulnerability"
},
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"id": "GSD-2018-13405",
"modified": "2023-12-13T01:22:26.640477Z",
"schema_version": "1.4.0"
}
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"baseScore": 4.6,
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"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
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"severity": "MEDIUM",
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},
"baseMetricV3": {
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"baseScore": 7.8,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
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},
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}
},
"lastModifiedDate": "2022-04-06T15:28Z",
"publishedDate": "2018-07-06T14:29Z"
}
}
}
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