Upstream information

CVE-2017-7418 at MITRE

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.

SUSE information

Overall state of this security issue: Does not affect SUSE products

This issue is currently rated as having moderate severity.

CVSS v2 Scores
  National Vulnerability Database
Base Score 2.1
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
CVSS v3 Scores
  National Vulnerability Database
Base Score 5.5
Vector AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
Access Vector Local
Access Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality Impact None
Integrity Impact High
Availability Impact None
SUSE Bugzilla entry: 1032443

SUSE Security Advisories:

List of released packages

Product(s) Fixed package version(s) References
openSUSE Leap 42.1
  • proftpd >= 1.3.5d-7.1
  • proftpd-debuginfo >= 1.3.5d-7.1
  • proftpd-debugsource >= 1.3.5d-7.1
  • proftpd-devel >= 1.3.5d-7.1
  • proftpd-doc >= 1.3.5d-7.1
  • proftpd-lang >= 1.3.5d-7.1
  • proftpd-ldap >= 1.3.5d-7.1
  • proftpd-ldap-debuginfo >= 1.3.5d-7.1
  • proftpd-mysql >= 1.3.5d-7.1
  • proftpd-mysql-debuginfo >= 1.3.5d-7.1
  • proftpd-pgsql >= 1.3.5d-7.1
  • proftpd-pgsql-debuginfo >= 1.3.5d-7.1
  • proftpd-radius >= 1.3.5d-7.1
  • proftpd-radius-debuginfo >= 1.3.5d-7.1
  • proftpd-sqlite >= 1.3.5d-7.1
  • proftpd-sqlite-debuginfo >= 1.3.5d-7.1
Patchnames:
openSUSE-2017-481
openSUSE Leap 42.2
  • proftpd >= 1.3.5d-6.3.1
  • proftpd-debuginfo >= 1.3.5d-6.3.1
  • proftpd-debugsource >= 1.3.5d-6.3.1
  • proftpd-devel >= 1.3.5d-6.3.1
  • proftpd-doc >= 1.3.5d-6.3.1
  • proftpd-lang >= 1.3.5d-6.3.1
  • proftpd-ldap >= 1.3.5d-6.3.1
  • proftpd-ldap-debuginfo >= 1.3.5d-6.3.1
  • proftpd-mysql >= 1.3.5d-6.3.1
  • proftpd-mysql-debuginfo >= 1.3.5d-6.3.1
  • proftpd-pgsql >= 1.3.5d-6.3.1
  • proftpd-pgsql-debuginfo >= 1.3.5d-6.3.1
  • proftpd-radius >= 1.3.5d-6.3.1
  • proftpd-radius-debuginfo >= 1.3.5d-6.3.1
  • proftpd-sqlite >= 1.3.5d-6.3.1
  • proftpd-sqlite-debuginfo >= 1.3.5d-6.3.1
Patchnames:
openSUSE-2017-481