National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2017-7418 Detail

Current 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.

Source:  MITRE
View Analysis Description

Severity



CVSS 3.x Severity and Metrics:

NIST CVSS score
NIST: NVD
Base Score: 5.5 MEDIUM
Vector:  CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://bugs.proftpd.org/show_bug.cgi?id=4295 Issue 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/97409 Third Party Advisory VDB Entry
https://github.com/proftpd/proftpd/commit/ecff21e0d0e84f35c299ef91d7fda088e516d4ed Issue Tracking Patch Third Party Advisory
https://github.com/proftpd/proftpd/commit/f59593e6ff730b832dbe8754916cb5c821db579f Issue Tracking Patch Third Party Advisory
https://github.com/proftpd/proftpd/pull/444/commits/349addc3be4fcdad9bd4ec01ad1ccd916c898ed8 Issue Tracking Patch Third Party Advisory

Weakness Enumeration

CWE-ID CWE Name Source
CWE-59 Improper Link Resolution Before File Access ('Link Following') NIST  

Known Affected Software Configurations Switch to CPE 2.2

Configuration 1 ( hide )
 cpe:2.3:a:proftpd:proftpd:*:d:*:*:*:*:*:*
     Show Matching CPE(s)
Up to (including)
1.3.5
 cpe:2.3:a:proftpd:proftpd:1.3.6:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:proftpd:proftpd:1.3.6:rc1:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:proftpd:proftpd:1.3.6:rc2:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:proftpd:proftpd:1.3.6:rc3:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:proftpd:proftpd:1.3.6:rc4:*:*:*:*:*:*
     Show Matching CPE(s)


Change History

5 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2017-7418
NVD Published Date:
04/04/2017
NVD Last Modified:
08/08/2019