2018-01-03
ALT-BU-2018-2988-1
Branch sisyphus update bulletin.
Closed vulnerabilities
Published: 2017-04-04
Modified: 2024-11-21
Modified: 2024-11-21
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.
Severity: MEDIUM (5.5)
Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
References:
- http://bugs.proftpd.org/show_bug.cgi?id=4295
- http://bugs.proftpd.org/show_bug.cgi?id=4295
- openSUSE-SU-2019:1836
- openSUSE-SU-2019:1836
- openSUSE-SU-2019:1870
- openSUSE-SU-2019:1870
- openSUSE-SU-2020:0031
- openSUSE-SU-2020:0031
- 97409
- 97409
- https://github.com/proftpd/proftpd/commit/ecff21e0d0e84f35c299ef91d7fda088e516d4ed
- https://github.com/proftpd/proftpd/commit/ecff21e0d0e84f35c299ef91d7fda088e516d4ed
- https://github.com/proftpd/proftpd/commit/f59593e6ff730b832dbe8754916cb5c821db579f
- https://github.com/proftpd/proftpd/commit/f59593e6ff730b832dbe8754916cb5c821db579f
- https://github.com/proftpd/proftpd/pull/444/commits/349addc3be4fcdad9bd4ec01ad1ccd916c898ed8
- https://github.com/proftpd/proftpd/pull/444/commits/349addc3be4fcdad9bd4ec01ad1ccd916c898ed8