Vulnerability Monitor

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CVE-2017-7418

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.

Published

2017-04-04T17:59:00.337

Last Modified

2025-04-20T01:37:25.860

Status

Deferred

Source

[email protected]

Severity

CVSSv3.0: 5.5 (MEDIUM)

CVSSv2 Vector

AV:L/AC:L/Au:N/C:N/I:P/A:N

Access Vector: LOCAL
Access Complexity: LOW
Authentication: NONE
Confidentiality Impact: NONE
Integrity Impact: PARTIAL
Availability Impact: NONE

Exploitability Score

3.9

Impact Score

2.9

Weaknesses

Type: Primary
CWE-59

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	proftpd	proftpd	≤ 1.3.5	Yes
Application	proftpd	proftpd	1.3.6	Yes
Application	proftpd	proftpd	1.3.6	Yes
Application	proftpd	proftpd	1.3.6	Yes
Application	proftpd	proftpd	1.3.6	Yes
Application	proftpd	proftpd	1.3.6	Yes

References

http://bugs.proftpd.org/show_bug.cgi?id=4295 Issue Tracking, Patch ([email protected])
http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00004.html ([email protected])
http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00022.html ([email protected])
http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00009.html ([email protected])
http://www.securityfocus.com/bid/97409 Third Party Advisory, VDB Entry ([email protected])
https://github.com/proftpd/proftpd/commit/ecff21e0d0e84f35c299ef91d7fda088e516d4ed Issue Tracking, Patch, Third Party Advisory ([email protected])
https://github.com/proftpd/proftpd/commit/f59593e6ff730b832dbe8754916cb5c821db579f Issue Tracking, Patch, Third Party Advisory ([email protected])
https://github.com/proftpd/proftpd/pull/444/commits/349addc3be4fcdad9bd4ec01ad1ccd916c898ed8 Issue Tracking, Patch, Third Party Advisory ([email protected])
http://bugs.proftpd.org/show_bug.cgi?id=4295 Issue Tracking, Patch (af854a3a-2127-422b-91ae-364da2661108)
http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00004.html (af854a3a-2127-422b-91ae-364da2661108)
http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00022.html (af854a3a-2127-422b-91ae-364da2661108)
http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00009.html (af854a3a-2127-422b-91ae-364da2661108)
http://www.securityfocus.com/bid/97409 Third Party Advisory, VDB Entry (af854a3a-2127-422b-91ae-364da2661108)
https://github.com/proftpd/proftpd/commit/ecff21e0d0e84f35c299ef91d7fda088e516d4ed Issue Tracking, Patch, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://github.com/proftpd/proftpd/commit/f59593e6ff730b832dbe8754916cb5c821db579f Issue Tracking, Patch, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://github.com/proftpd/proftpd/pull/444/commits/349addc3be4fcdad9bd4ec01ad1ccd916c898ed8 Issue Tracking, Patch, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)