http://bugzilla.opensuse.org/show_bug.cgi?id=1032443 Bug ID: 1032443 Summary: VUL-0: CVE-2017-7418: proftpd: AllowChrootSymlinks not enforced by replacing a path component with a symbolic link Classification: openSUSE Product: openSUSE Distribution Version: Leap 42.2 Hardware: Other OS: Other Status: NEW Severity: Normal Priority: P5 - None Component: Security Assignee: chris@computersalat.de Reporter: abergmann@suse.com QA Contact: qa-bugs@suse.de Found By: Security Response Team Blocker: --- 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. References: http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2017-7418 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-7418 http://www.cvedetails.com/cve/CVE-2017-7418/ http://bugs.proftpd.org/show_bug.cgi?id=4295 https://github.com/proftpd/proftpd/commit/f59593e6ff730b832dbe8754916cb5c821... https://github.com/proftpd/proftpd/pull/444/commits/349addc3be4fcdad9bd4ec01... https://github.com/proftpd/proftpd/commit/ecff21e0d0e84f35c299ef91d7fda088e5... -- You are receiving this mail because: You are on the CC list for the bug.