Vulnerability Name:

CVE-2017-7418 (CCN-126184)

Assigned:2017-04-04
Published:2017-04-04
Updated:2019-08-08
Summary: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.
CVSS v3 Severity:5.5 Medium (CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N)
4.8 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): High
Availibility (A): None
4.0 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N)
3.5 Low (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): Low
Availibility (A): None
CVSS v2 Severity:2.1 Low (CVSS v2 Vector: AV:L/AC:L/Au:N/C:N/I:P/A:N)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): Low
Authentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): Partial
Availibility (A): None
2.1 Low (CCN CVSS v2 Vector: AV:L/AC:L/Au:N/C:N/I:P/A:N)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): Low
Athentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): Partial
Availibility (A): None
Vulnerability Type:CWE-59
Vulnerability Consequences:Bypass Security
References:Source: CCN
Type: ProFTPD Bugzilla – Bug 4295
AllowChrootSymlinks off does not check entire DefaultRoot path for symlinks

Source: CONFIRM
Type: Issue Tracking, Patch
http://bugs.proftpd.org/show_bug.cgi?id=4295

Source: MITRE
Type: CNA
CVE-2017-7418

Source: SUSE
Type: UNKNOWN
openSUSE-SU-2019:1836

Source: SUSE
Type: UNKNOWN
openSUSE-SU-2019:1870

Source: SUSE
Type: UNKNOWN
openSUSE-SU-2020:0031

Source: BID
Type: Third Party Advisory, VDB Entry
97409

Source: CCN
Type: BID-97409
ProFTPD CVE-2017-7418 Local Security Bypass Vulnerability

Source: XF
Type: UNKNOWN
proftpd-cve20177418-sec-bypass(126184)

Source: CONFIRM
Type: Issue Tracking, Patch, Third Party Advisory
https://github.com/proftpd/proftpd/commit/ecff21e0d0e84f35c299ef91d7fda088e516d4ed

Source: CONFIRM
Type: Issue Tracking, Patch, Third Party Advisory
https://github.com/proftpd/proftpd/commit/f59593e6ff730b832dbe8754916cb5c821db579f

Source: CONFIRM
Type: Issue Tracking, Patch, Third Party Advisory
https://github.com/proftpd/proftpd/pull/444/commits/349addc3be4fcdad9bd4ec01ad1ccd916c898ed8

Vulnerable Configuration:Configuration 1:
  • cpe:/a:proftpd:proftpd:*:d:*:*:*:*:*:* (Version <= 1.3.5)
  • OR cpe:/a:proftpd:proftpd:1.3.6:*:*:*:*:*:*:*
  • OR cpe:/a:proftpd:proftpd:1.3.6:rc1:*:*:*:*:*:*
  • OR cpe:/a:proftpd:proftpd:1.3.6:rc2:*:*:*:*:*:*
  • OR cpe:/a:proftpd:proftpd:1.3.6:rc3:*:*:*:*:*:*
  • OR cpe:/a:proftpd:proftpd:1.3.6:rc4:*:*:*:*:*:*

    • Configuration CCN 1:
  • cpe:/a:proftpd:proftpd:1.3.5d:*:*:*:*:*:*:*
  • OR cpe:/a:proftpd:proftpd:1.3.6:*:*:*:*:*:*:*
  • OR cpe:/a:proftpd:proftpd:1.3.6:rc1:*:*:*:*:*:*
  • OR cpe:/a:proftpd:proftpd:1.3.6:rc2:*:*:*:*:*:*
  • OR cpe:/a:proftpd:proftpd:1.3.6:rc3:*:*:*:*:*:*
  • OR cpe:/a:proftpd:proftpd:1.3.6:rc4:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    Oval Definitions
    Definition IDClassTitleLast Modified
    oval:org.opensuse.security:def:20177418
    V
    		CVE-2017-7418
    2022-06-30
    oval:org.opensuse.security:def:113176
    P
    		proftpd-1.3.6e-1.10 on GA media (Moderate)
    2022-01-17
    oval:org.opensuse.security:def:74757
    P
    		Security update for go1.17 (Moderate)
    2021-12-23
    oval:org.opensuse.security:def:93432
    P
    		 (Moderate)
    2021-12-06
    oval:org.opensuse.security:def:106598
    P
    		proftpd-1.3.6e-1.10 on GA media (Moderate)
    2021-10-01
    oval:org.opensuse.security:def:63192
    P
    		apache2-2.4.33-3.15.1 on GA media (Moderate)
    2021-09-21
    oval:org.opensuse.security:def:64570
    P
    		Security update for java-11-openjdk (Important)
    2021-09-03
    oval:org.opensuse.security:def:74307
    P
    		Security update for ffmpeg (Important)
    2021-09-02
    oval:org.opensuse.security:def:93576
    P
    		 (Moderate)
    2021-08-23
    oval:org.opensuse.security:def:63418
    P
    		tomcat-9.0.36-3.24.1 on GA media (Moderate)
    2021-08-10
    oval:org.opensuse.security:def:63461
    P
    		vpx-tools-1.6.1-6.6.8 on GA media (Moderate)
    2021-08-10
    oval:org.opensuse.security:def:62762
    P
    		imlib2-loaders-1.4.10-1.28 on GA media (Moderate)
    2021-08-09
    oval:org.opensuse.security:def:62755
    P
    		gstreamer-plugins-bad-1.16.2-7.22 on GA media (Moderate)
    2021-08-09
    oval:org.opensuse.security:def:62759
    P
    		hplip-3.20.11-2.1 on GA media (Moderate)
    2021-08-09
    oval:org.opensuse.security:def:62787
    P
    		libgypsy-devel-0.9-2.30 on GA media (Moderate)
    2021-08-09
    oval:org.opensuse.security:def:62852
    P
    		dpkg-1.19.0.4-2.30 on GA media (Moderate)
    2021-06-08
    oval:org.opensuse.security:def:100289
    P
    		 (Moderate)
    2021-06-04
    oval:org.opensuse.security:def:64512
    P
    		Security update for gstreamer, gstreamer-plugins-bad, gstreamer-plugins-base, gstreamer-plugins-good, gstreamer-plugins-ugly (Important)
    2021-06-01
    oval:org.opensuse.security:def:64682
    P
    		Security update for avahi (Moderate)
    2021-05-04
    oval:org.opensuse.security:def:74624
    P
    		Security update for spamassassin (Important)
    2021-04-13
    oval:org.opensuse.security:def:63258
    P
    		dhcp-relay-4.3.5-6.3.1 on GA media (Moderate)
    2020-12-03
    oval:org.opensuse.security:def:62373
    P
    		podman-1.0.1-2.20 on GA media (Moderate)
    2020-12-03
    oval:org.opensuse.security:def:63608
    P
    		argyllcms-1.9.2-2.27 on GA media (Moderate)
    2020-12-03
    oval:org.opensuse.security:def:62573
    P
    		libpango-1_0-0-32bit-1.40.14-3.3.1 on GA media (Moderate)
    2020-12-03
    oval:org.opensuse.security:def:62372
    P
    		docker-runc-1.0.0rc6+gitr3748_96ec2177ae84-6.15.1 on GA media (Moderate)
    2020-12-03
    oval:org.opensuse.security:def:63054
    P
    		libnss_slurm2-20.02.3-1.7 on GA media (Moderate)
    2020-12-03
    oval:org.opensuse.security:def:62965
    P
    		log4j12-javadoc-1.2.17-2.26 on GA media (Moderate)
    2020-12-03
    oval:org.opensuse.security:def:62396
    P
    		bluez-5.48-3.7 on GA media (Moderate)
    2020-12-03
    oval:org.opensuse.security:def:64241
    P
    		dracut on GA media (Moderate)
    2020-12-01
    oval:org.opensuse.security:def:64303
    P
    		libXfont2-2 on GA media (Moderate)
    2020-12-01
    oval:org.opensuse.security:def:64166
    P
    		Security update for xen (Important)
    2020-12-01
    oval:org.opensuse.security:def:63985
    P
    		Security update for systemd (Important)
    2020-12-01
    oval:org.opensuse.security:def:64129
    P
    		Security update for the Linux Kernel (Important)
    2020-12-01
    oval:org.opensuse.security:def:63879
    P
    		Security update for libssh2_org (Moderate)
    2020-12-01
    oval:org.opensuse.security:def:74181
    P
    		Security update for the Linux Kernel (Important)
    2020-12-01
    oval:org.opensuse.security:def:64410
    P
    		libykcs11-1 on GA media (Moderate)
    2020-12-01
    oval:org.opensuse.security:def:63837
    P
    		Security update for clamav (Moderate)
    2020-12-01
    oval:org.opensuse.security:def:64302
    P
    		libXfont-devel on GA media (Moderate)
    2020-12-01
    oval:org.opensuse.security:def:64087
    P
    		Security update for MozillaFirefox (Important)
    2020-12-01
    oval:org.opensuse.security:def:63745
    P
    		Security update for libsolv, libzypp, zypper (Moderate)
    2020-12-01
    oval:org.opensuse.security:def:110419
    P
    		Security update for proftpd (Moderate)
    2020-01-13
    oval:org.opensuse.security:def:100145
    P
    		Security update for proftpd (Important)
    2019-08-14
    oval:org.opensuse.security:def:109931
    P
    		Security update for proftpd (Important)
    2019-08-08
    oval:com.ubuntu.cosmic:def:201774180000000
    V
    		CVE-2017-7418 on Ubuntu 18.10 (cosmic) - medium.
    2017-04-04
    oval:com.ubuntu.artful:def:20177418000
    V
    		CVE-2017-7418 on Ubuntu 17.10 (artful) - untriaged.
    2017-04-04
    oval:com.ubuntu.trusty:def:20177418000
    V
    		CVE-2017-7418 on Ubuntu 14.04 LTS (trusty) - medium.
    2017-04-04
    oval:com.ubuntu.bionic:def:201774180000000
    V
    		CVE-2017-7418 on Ubuntu 18.04 LTS (bionic) - medium.
    2017-04-04
    oval:com.ubuntu.bionic:def:20177418000
    V
    		CVE-2017-7418 on Ubuntu 18.04 LTS (bionic) - medium.
    2017-04-04
    oval:com.ubuntu.xenial:def:20177418000
    V
    		CVE-2017-7418 on Ubuntu 16.04 LTS (xenial) - medium.
    2017-04-04
    oval:com.ubuntu.xenial:def:201774180000000
    V
    		CVE-2017-7418 on Ubuntu 16.04 LTS (xenial) - medium.
    2017-04-04
    oval:com.ubuntu.cosmic:def:20177418000
    V
    		CVE-2017-7418 on Ubuntu 18.10 (cosmic) - medium.
    2017-04-04
    oval:com.ubuntu.disco:def:201774180000000
    V
    		CVE-2017-7418 on Ubuntu 19.04 (disco) - medium.
    2017-04-04
    oval:com.ubuntu.precise:def:20177418000
    V
    		CVE-2017-7418 on Ubuntu 12.04 LTS (precise) - untriaged.
    2017-04-04
    BACK
    proftpd proftpd * d
    proftpd proftpd 1.3.6
    proftpd proftpd 1.3.6 rc1
    proftpd proftpd 1.3.6 rc2
    proftpd proftpd 1.3.6 rc3
    proftpd proftpd 1.3.6 rc4
    proftpd proftpd 1.3.5d
    proftpd proftpd 1.3.6
    proftpd proftpd 1.3.6 rc1
    proftpd proftpd 1.3.6 rc2
    proftpd proftpd 1.3.6 rc3
    proftpd proftpd 1.3.6 rc4