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Vulnerability details: VCID-gm72-zyaz-aaac
Vulnerability ID VCID-gm72-zyaz-aaac
Aliases CVE-2017-7418
Summary ProFTPD before 1.3.5e and 1.3.6 before 1.3.6rc5 controls whether the home directory of a user could contain a symbolic link through the AllowChrootSymlinks configuration option, but checks only the last path component when enforcing AllowChrootSymlinks. Attackers with local access could bypass the AllowChrootSymlinks control by replacing a path component (other than the last one) with a symbolic link. The threat model includes an attacker who is not granted full filesystem access by a hosting provider, but can reconfigure the home directory of an FTP user.
Status Published
Exploitability 0.5
Weighted Severity 6.2
Risk 3.1
Affected and Fixed Packages Package Details
Weaknesses (1)
CWE-59 Improper Link Resolution Before File Access ('Link Following')
System Score Found at
generic_textual Medium http://people.canonical.com/~ubuntu-security/cve/2017/CVE-2017-7418.html
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generic_textual Medium https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-7418
generic_textual Medium https://github.com/proftpd/proftpd/commit/ecff21e0d0e84f35c299ef91d7fda088e516d4ed
generic_textual Medium https://github.com/proftpd/proftpd/commit/f59593e6ff730b832dbe8754916cb5c821db579f
generic_textual Medium https://github.com/proftpd/proftpd/pull/444/commits/349addc3be4fcdad9bd4ec01ad1ccd916c898ed8
cvssv2 2.1 https://nvd.nist.gov/vuln/detail/CVE-2017-7418
cvssv3 5.5 https://nvd.nist.gov/vuln/detail/CVE-2017-7418
Reference id Reference type URL
http://bugs.proftpd.org/show_bug.cgi?id=4295
http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00004.html
http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00022.html
http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00009.html
http://people.canonical.com/~ubuntu-security/cve/2017/CVE-2017-7418.html
https://api.first.org/data/v1/epss?cve=CVE-2017-7418
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-7418
https://github.com/proftpd/proftpd/commit/ecff21e0d0e84f35c299ef91d7fda088e516d4ed
https://github.com/proftpd/proftpd/commit/f59593e6ff730b832dbe8754916cb5c821db579f
https://github.com/proftpd/proftpd/pull/444/commits/349addc3be4fcdad9bd4ec01ad1ccd916c898ed8
http://www.securityfocus.com/bid/97409
859592 https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=859592
cpe:2.3:a:proftpd:proftpd:1.3.6:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:proftpd:proftpd:1.3.6:*:*:*:*:*:*:*
cpe:2.3:a:proftpd:proftpd:1.3.6:rc1:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:proftpd:proftpd:1.3.6:rc1:*:*:*:*:*:*
cpe:2.3:a:proftpd:proftpd:1.3.6:rc2:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:proftpd:proftpd:1.3.6:rc2:*:*:*:*:*:*
cpe:2.3:a:proftpd:proftpd:1.3.6:rc3:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:proftpd:proftpd:1.3.6:rc3:*:*:*:*:*:*
cpe:2.3:a:proftpd:proftpd:1.3.6:rc4:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:proftpd:proftpd:1.3.6:rc4:*:*:*:*:*:*
cpe:2.3:a:proftpd:proftpd:*:d:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:proftpd:proftpd:*:d:*:*:*:*:*:*
CVE-2017-7418 https://nvd.nist.gov/vuln/detail/CVE-2017-7418
No exploits are available.
Vector: AV:L/AC:L/Au:N/C:N/I:P/A:N Found at https://nvd.nist.gov/vuln/detail/CVE-2017-7418
Exploitability (E) Access Vector (AV) Access Complexity (AC) Authentication (Au) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

high

functional

unproven

proof_of_concept

not_defined

local

adjacent_network

network

high

medium

low

multiple

single

none

none

partial

complete

none

partial

complete

none

partial

complete
Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N Found at https://nvd.nist.gov/vuln/detail/CVE-2017-7418
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Exploit Prediction Scoring System (EPSS)
Percentile 0.05128
EPSS Score 0.00042
Published At Nov. 1, 2024, midnight
Date Actor Action Source VulnerableCode Version
There are no relevant records.