FKIE_CVE-2017-9525
Vulnerability from fkie_nvd - Published: 2017-06-09 16:29 - Updated: 2025-04-20 01:37
Severity ?
Summary
In the cron package through 3.0pl1-128 on Debian, and through 3.0pl1-128ubuntu2 on Ubuntu, the postinst maintainer script allows for group-crontab-to-root privilege escalation via symlink attacks against unsafe usage of the chown and chmod programs.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| cron_project | cron | * | |
| canonical | ubuntu_linux | * | |
| debian | debian_linux | * | |
| debian | debian_linux | 8.0 | |
| debian | debian_linux | 9.0 |
{
"configurations": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:cron_project:cron:*:*:*:*:*:*:*:*",
"matchCriteriaId": "E3444166-4E36-4879-BAC9-A90E13FFE19F",
"versionEndIncluding": "3.0pl1-128.",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
},
{
"cpeMatch": [
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"vulnerable": false
},
{
"criteria": "cpe:2.3:o:debian:debian_linux:*:*:*:*:*:*:*:*",
"matchCriteriaId": "4C8919F1-CD33-437E-9627-69352B276BA3",
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}
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"operator": "AND"
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{
"nodes": [
{
"cpeMatch": [
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"criteria": "cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*",
"matchCriteriaId": "C11E6FB0-C8C0-4527-9AA0-CB9B316F8F43",
"vulnerable": true
},
{
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"matchCriteriaId": "DEECE5FC-CACF-4496-A3E7-164736409252",
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}
],
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],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "In the cron package through 3.0pl1-128 on Debian, and through 3.0pl1-128ubuntu2 on Ubuntu, the postinst maintainer script allows for group-crontab-to-root privilege escalation via symlink attacks against unsafe usage of the chown and chmod programs."
},
{
"lang": "es",
"value": "En el paquete cron hasta la versi\u00f3n 3.0pl1-128 en Debian, y hasta la versi\u00f3n 3.0pl1-128ubuntu2 en Ubuntu, el script de mantenimiento postinst permite la escalada de privilegios de grupo-crontab a root por medio de ataques de enlace simb\u00f3lico (symlink) contra el uso no seguro de los programas chown y chmod."
}
],
"id": "CVE-2017-9525",
"lastModified": "2025-04-20T01:37:25.860",
"metrics": {
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"acInsufInfo": false,
"baseSeverity": "MEDIUM",
"cvssData": {
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"accessVector": "LOCAL",
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"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
}
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"cvssMetricV31": [
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"attackVector": "LOCAL",
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"baseSeverity": "MEDIUM",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "HIGH",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
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"impactScore": 5.9,
"source": "nvd@nist.gov",
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]
},
"published": "2017-06-09T16:29:02.110",
"references": [
{
"source": "cve@mitre.org",
"tags": [
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"url": "http://bugs.debian.org/864466"
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"url": "https://lists.debian.org/debian-lts-announce/2019/03/msg00025.html"
},
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}
],
"sourceIdentifier": "cve@mitre.org",
"vulnStatus": "Deferred",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-59"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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