Candidate: CVE-2017-7418
PublicDate: 2017-04-04 17:59:00 UTC
References:
 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
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.
Ubuntu-Description:
Notes:
Bugs:
 http://bugs.proftpd.org/show_bug.cgi?id=4295
 http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=859592
Priority: medium
Discovered-by:
Assigned-to:
CVSS:
 nvd: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N [5.5 MEDIUM]

Patches_proftpd-dfsg:
upstream_proftpd-dfsg: released (1.3.5b-4)
precise_proftpd-dfsg: ignored (reached end-of-life)
precise/esm_proftpd-dfsg: DNE (precise was needed)
trusty_proftpd-dfsg: ignored (reached end-of-life)
trusty/esm_proftpd-dfsg: DNE (trusty was needed)
vivid/stable-phone-overlay_proftpd-dfsg: DNE
vivid/ubuntu-core_proftpd-dfsg: DNE
xenial_proftpd-dfsg: ignored (end of standard support, was needed)
yakkety_proftpd-dfsg: ignored (reached end-of-life)
zesty_proftpd-dfsg: ignored (reached end-of-life)
artful_proftpd-dfsg: ignored (reached end-of-life)
bionic_proftpd-dfsg: not-affected (1.3.5e-1build1)
cosmic_proftpd-dfsg: not-affected (1.3.5e-1build1)
disco_proftpd-dfsg: not-affected (1.3.5e-1build1)
eoan_proftpd-dfsg: not-affected (1.3.5e-1build1)
focal_proftpd-dfsg: not-affected (1.3.5e-1build1)
groovy_proftpd-dfsg: not-affected (1.3.5e-1build1)
hirsute_proftpd-dfsg: not-affected (1.3.5e-1build1)
impish_proftpd-dfsg: not-affected (1.3.5e-1build1)
jammy_proftpd-dfsg: not-affected (1.3.5e-1build1)
devel_proftpd-dfsg: not-affected (1.3.5e-1build1)