CVE-2017-17405
Status: ModifiedHigh (8.8)—
Ruby before 2.4.3 allows Net::FTP command injection. Net::FTP#get, getbinaryfile, gettextfile, put, putbinaryfile, and puttextfile use Kernel#open to open a local file. If the localfile argument starts with the "|" pipe character, the command following the pipe character is executed. The default value of localfile is File.basename(remotefile), so malicious FTP servers could cause arbitrary command execution.
CVSS
- Version: 3.0
- Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- Base score: 8.8
Exploitation probability (EPSS)
- Probability of exploitation in the next 30 days: 74%
- Percentile among all scored CVEs: 99
- Score date: 10/3/2026
EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).
Affected technologies (8)
CWEs
- CWE-78
References
- http://www.securityfocus.com/bid/102204
- http://www.securitytracker.com/id/1042004
- https://access.redhat.com/errata/RHSA-2018:0378
- https://access.redhat.com/errata/RHSA-2018:0583
- https://access.redhat.com/errata/RHSA-2018:0584
- https://access.redhat.com/errata/RHSA-2018:0585
- https://access.redhat.com/errata/RHSA-2019:2806
- https://lists.debian.org/debian-lts-announce/2017/12/msg00024.html
- https://lists.debian.org/debian-lts-announce/2017/12/msg00025.html
- https://lists.debian.org/debian-lts-announce/2018/07/msg00012.html
- https://www.debian.org/security/2018/dsa-4259
- https://www.exploit-db.com/exploits/43381/
- https://www.ruby-lang.org/en/news/2017/12/14/net-ftp-command-injection-cve-2017-17405/
- https://www.ruby-lang.org/en/news/2017/12/14/ruby-2-4-3-released/
- http://www.securityfocus.com/bid/102204
- http://www.securitytracker.com/id/1042004
- https://access.redhat.com/errata/RHSA-2018:0378
- https://access.redhat.com/errata/RHSA-2018:0583
- https://access.redhat.com/errata/RHSA-2018:0584
- https://access.redhat.com/errata/RHSA-2018:0585
- https://access.redhat.com/errata/RHSA-2019:2806
- https://lists.debian.org/debian-lts-announce/2017/12/msg00024.html
- https://lists.debian.org/debian-lts-announce/2017/12/msg00025.html
- https://lists.debian.org/debian-lts-announce/2018/07/msg00012.html
- https://www.debian.org/security/2018/dsa-4259
- https://www.exploit-db.com/exploits/43381/
- https://www.ruby-lang.org/en/news/2017/12/14/net-ftp-command-injection-cve-2017-17405/
- https://www.ruby-lang.org/en/news/2017/12/14/ruby-2-4-3-released/
Raw JSON (NVD)
Show
{
"id": "CVE-2017-17405",
"cveTags": [],
"metrics": {
"cvssMetricV2": [
{
"type": "Primary",
"source": "nvd@nist.gov",
"cvssData": {
"version": "2.0",
"baseScore": 9.3,
"accessVector": "NETWORK",
"vectorString": "AV:N/AC:M/Au:N/C:C/I:C/A:C",
"authentication": "NONE",
"integrityImpact": "COMPLETE",
"accessComplexity": "MEDIUM",
"availabilityImpact": "COMPLETE",
"confidentialityImpact": "COMPLETE"
},
"acInsufInfo": false,
"impactScore": 10,
"baseSeverity": "HIGH",
"obtainAllPrivilege": false,
"exploitabilityScore": 8.6,
"obtainUserPrivilege": false,
"obtainOtherPrivilege": false,
"userInteractionRequired": true
}
],
"cvssMetricV30": [
{
"type": "Primary",
"source": "nvd@nist.gov",
"cvssData": {
"scope": "UNCHANGED",
"version": "3.0",
"baseScore": 8.8,
"attackVector": "NETWORK",
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
"integrityImpact": "HIGH",
"userInteraction": "REQUIRED",
"attackComplexity": "LOW",
"availabilityImpact": "HIGH",
"privilegesRequired": "NONE",
"confidentialityImpact": "HIGH"
},
"impactScore": 5.9,
"exploitabilityScore": 2.8
}
]
},
"affected": [
{
"source": "cve@mitre.org",
"affectedData": [
{
"vendor": "n/a",
"product": "n/a",
"versions": [
{
"status": "affected",
"version": "n/a"
}
]
}
]
}
],
"published": "2017-12-15T09:29:00.203",
"references": [
{
"url": "http://www.securityfocus.com/bid/102204",
"tags": [
"Third Party Advisory",
"VDB Entry"
],
"source": "cve@mitre.org"
},
{
"url": "http://www.securitytracker.com/id/1042004",
"tags": [
"Third Party Advisory",
"VDB Entry"
],
"source": "cve@mitre.org"
},
{
"url": "https://access.redhat.com/errata/RHSA-2018:0378",
"tags": [
"Third Party Advisory"
],
"source": "cve@mitre.org"
},
{
"url": "https://access.redhat.com/errata/RHSA-2018:0583",
"tags": [
"Third Party Advisory"
],
"source": "cve@mitre.org"
},
{
"url": "https://access.redhat.com/errata/RHSA-2018:0584",
"tags": [
"Third Party Advisory"
],
"source": "cve@mitre.org"
},
{
"url": "https://access.redhat.com/errata/RHSA-2018:0585",
"tags": [
"Third Party Advisory"
],
"source": "cve@mitre.org"
},
{
"url": "https://access.redhat.com/errata/RHSA-2019:2806",
"source": "cve@mitre.org"
},
{
"url": "https://lists.debian.org/debian-lts-announce/2017/12/msg00024.html",
"tags": [
"Mailing List",
"Third Party Advisory"
],
"source": "cve@mitre.org"
},
{
"url": "https://lists.debian.org/debian-lts-announce/2017/12/msg00025.html",
"tags": [
"Mailing List",
"Third Party Advisory"
],
"source": "cve@mitre.org"
},
{
"url": "https://lists.debian.org/debian-lts-announce/2018/07/msg00012.html",
"tags": [
"Mailing List",
"Third Party Advisory"
],
"source": "cve@mitre.org"
},
{
"url": "https://www.debian.org/security/2018/dsa-4259",
"tags": [
"Third Party Advisory"
],
"source": "cve@mitre.org"
},
{
"url": "https://www.exploit-db.com/exploits/43381/",
"tags": [
"Exploit",
"Third Party Advisory",
"VDB Entry"
],
"source": "cve@mitre.org"
},
{
"url": "https://www.ruby-lang.org/en/news/2017/12/14/net-ftp-command-injection-cve-2017-17405/",
"tags": [
"Vendor Advisory"
],
"source": "cve@mitre.org"
},
{
"url": "https://www.ruby-lang.org/en/news/2017/12/14/ruby-2-4-3-released/",
"tags": [
"Patch",
"Release Notes",
"Vendor Advisory"
],
"source": "cve@mitre.org"
},
{
"url": "http://www.securityfocus.com/bid/102204",
"tags": [
"Third Party Advisory",
"VDB Entry"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "http://www.securitytracker.com/id/1042004",
"tags": [
"Third Party Advisory",
"VDB Entry"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "https://access.redhat.com/errata/RHSA-2018:0378",
"tags": [
"Third Party Advisory"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "https://access.redhat.com/errata/RHSA-2018:0583",
"tags": [
"Third Party Advisory"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "https://access.redhat.com/errata/RHSA-2018:0584",
"tags": [
"Third Party Advisory"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "https://access.redhat.com/errata/RHSA-2018:0585",
"tags": [
"Third Party Advisory"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "https://access.redhat.com/errata/RHSA-2019:2806",
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "https://lists.debian.org/debian-lts-announce/2017/12/msg00024.html",
"tags": [
"Mailing List",
"Third Party Advisory"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "https://lists.debian.org/debian-lts-announce/2017/12/msg00025.html",
"tags": [
"Mailing List",
"Third Party Advisory"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "https://lists.debian.org/debian-lts-announce/2018/07/msg00012.html",
"tags": [
"Mailing List",
"Third Party Advisory"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "https://www.debian.org/security/2018/dsa-4259",
"tags": [
"Third Party Advisory"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "https://www.exploit-db.com/exploits/43381/",
"tags": [
"Exploit",
"Third Party Advisory",
"VDB Entry"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "https://www.ruby-lang.org/en/news/2017/12/14/net-ftp-command-injection-cve-2017-17405/",
"tags": [
"Vendor Advisory"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "https://www.ruby-lang.org/en/news/2017/12/14/ruby-2-4-3-released/",
"tags": [
"Patch",
"Release Notes",
"Vendor Advisory"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
}
],
"vulnStatus": "Modified",
"weaknesses": [
{
"type": "Primary",
"source": "nvd@nist.gov",
"description": [
{
"lang": "en",
"value": "CWE-78"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "Ruby before 2.4.3 allows Net::FTP command injection. Net::FTP#get, getbinaryfile, gettextfile, put, putbinaryfile, and puttextfile use Kernel#open to open a local file. If the localfile argument starts with the \"|\" pipe character, the command following the pipe character is executed. The default value of localfile is File.basename(remotefile), so malicious FTP servers could cause arbitrary command execution."
},
{
"lang": "es",
"value": "Ruby en versiones anteriores a la 2.4.3 permite la inyección de comandos Net::FTP. Net::FTP#get, getbinaryfile, gettextfile, put, putbinaryfile y puttextfile emplean Kernel#open para abrir un archivo local. Si el argumento localfile empieza por el carácter \"|\", el comando que lo siga se ejecutará. El valor por defecto de localfile es File.basename(remotefile), por lo que servidores FTP maliciosos podrían provocar la ejecución de comandos arbitrarios."
}
],
"lastModified": "2026-06-17T01:10:44.647",
"configurations": [
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:a:ruby-lang:ruby:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "B35C3AD5-0AFB-481C-A14C-74FE4E9D4075",
"versionEndIncluding": "2.2.8",
"versionStartIncluding": "2.2"
},
{
"criteria": "cpe:2.3:a:ruby-lang:ruby:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "1D4CCCBF-2BC7-4F93-ABD5-E8A979DD6FBC",
"versionEndIncluding": "2.3.5",
"versionStartIncluding": "2.3"
},
{
"criteria": "cpe:2.3:a:ruby-lang:ruby:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "175826D2-3602-48AE-A3B9-5764E8FC8834",
"versionEndIncluding": "2.4.2",
"versionStartIncluding": "2.4"
},
{
"criteria": "cpe:2.3:a:ruby-lang:ruby:2.5.0:preview1:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "1A059BF9-B9CA-4468-ABCD-0B8BD0C67FEF"
}
],
"operator": "OR"
}
]
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "16F59A04-14CF-49E2-9973-645477EA09DA"
},
{
"criteria": "cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "C11E6FB0-C8C0-4527-9AA0-CB9B316F8F43"
},
{
"criteria": "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "DEECE5FC-CACF-4496-A3E7-164736409252"
}
],
"operator": "OR"
}
]
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "33C068A4-3780-4EAB-A937-6082DF847564"
},
{
"criteria": "cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "51EF4996-72F4-4FA4-814F-F5991E7A8318"
},
{
"criteria": "cpe:2.3:o:redhat:enterprise_linux_server_aus:7.4:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "D99A687E-EAE6-417E-A88E-D0082BC194CD"
},
{
"criteria": "cpe:2.3:o:redhat:enterprise_linux_server_aus:7.6:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "B353CE99-D57C-465B-AAB0-73EF581127D1"
},
{
"criteria": "cpe:2.3:o:redhat:enterprise_linux_server_eus:7.4:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "9EC0D196-F7B8-4BDD-9050-779F7A7FBEE4"
},
{
"criteria": "cpe:2.3:o:redhat:enterprise_linux_server_eus:7.5:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "A4E9DD8A-A68B-4A69-8B01-BFF92A2020A8"
},
{
"criteria": "cpe:2.3:o:redhat:enterprise_linux_server_eus:7.6:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "BF77CDCF-B9C9-427D-B2BF-36650FB2148C"
},
{
"criteria": "cpe:2.3:o:redhat:enterprise_linux_server_tus:7.4:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "D5F7E11E-FB34-4467-8919-2B6BEAABF665"
},
{
"criteria": "cpe:2.3:o:redhat:enterprise_linux_server_tus:7.6:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "B76AA310-FEC7-497F-AF04-C3EC1E76C4CC"
},
{
"criteria": "cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "825ECE2D-E232-46E0-A047-074B34DB1E97"
}
],
"operator": "OR"
}
]
}
],
"sourceIdentifier": "cve@mitre.org"
}