HOMEVULNERABILITIESCVE-2017-7418
MEDIUM

CVE-2017-7418

CWE-59Published: April 4, 2017· Updated: Jun 17, 2026

5.5
CVSS v3.1

Official Description

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.

NVD Source

Technical Analysis

CVE-2017-7418 requires local access, meaning attackers must already have a foothold on the target system.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in full integrity compromise (data manipulation), with a CVSS base score of 5.5.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorLocal
Attack ComplexityLow
Privileges Req.Low
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityNone
IntegrityHigh
AvailabilityNone
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

Affected Vendors & Products

proftpd1 product(s)
proftpd
Source: NVD CPE · 2 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

PATCHhttp://bugs.proftpd.org/show_bug.cgi?id=4295
PATCHhttps://github.com/proftpd/proftpd/commit/ecff21e0d0e84f35c299ef91d7fda088e516d4ed
PATCHhttps://github.com/proftpd/proftpd/commit/f59593e6ff730b832dbe8754916cb5c821db579f
PATCHhttps://github.com/proftpd/proftpd/pull/444/commits/349addc3be4fcdad9bd4ec01ad1ccd916c898ed8
PATCHhttp://bugs.proftpd.org/show_bug.cgi?id=4295
PATCHhttps://github.com/proftpd/proftpd/commit/ecff21e0d0e84f35c299ef91d7fda088e516d4ed
PATCHhttps://github.com/proftpd/proftpd/commit/f59593e6ff730b832dbe8754916cb5c821db579f
PATCHhttps://github.com/proftpd/proftpd/pull/444/commits/349addc3be4fcdad9bd4ec01ad1ccd916c898ed8
ADVISORYhttp://www.securityfocus.com/bid/97409
ADVISORYhttp://www.securityfocus.com/bid/97409

All References (16)

→
http://bugs.proftpd.org/show_bug.cgi?id=4295Issue Tracking · Patch
→
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://www.securityfocus.com/bid/97409Third Party Advisory · VDB Entry
→
https://github.com/proftpd/proftpd/commit/ecff21e0d0e84f35c299ef91d7fda088e516d4edIssue Tracking · Patch · Third Party Advisory
→
https://github.com/proftpd/proftpd/commit/f59593e6ff730b832dbe8754916cb5c821db579fIssue Tracking · Patch · Third Party Advisory
→
https://github.com/proftpd/proftpd/pull/444/commits/349addc3be4fcdad9bd4ec01ad1ccd916c898ed8Issue Tracking · Patch · Third Party Advisory
→
http://bugs.proftpd.org/show_bug.cgi?id=4295Issue Tracking · Patch
→
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://www.securityfocus.com/bid/97409Third Party Advisory · VDB Entry
→
https://github.com/proftpd/proftpd/commit/ecff21e0d0e84f35c299ef91d7fda088e516d4edIssue Tracking · Patch · Third Party Advisory
→
https://github.com/proftpd/proftpd/commit/f59593e6ff730b832dbe8754916cb5c821db579fIssue Tracking · Patch · Third Party Advisory

Quick Facts

CVE IDCVE-2017-7418
CVSS Score5.5 / 10
SeverityMEDIUM
WeaknessCWE-59
CISA KEVNo
Affected1 vendor(s)
PublishedApr 4, 2017

Related CVEs (CWE-59)

CVE-2002-2374
10.0
CVE-2024-28185
10.0
CVE-2024-28189
10.0
CVE-2014-4480
10.0
CVE-2026-44881
9.9
CVE-2018-5225
9.9

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2017-7418 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
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