UBUNTU-CVE-2017-7418

See a problem?
Please try reporting it to the source first.

Source

https://ubuntu.com/security/CVE-2017-7418

Import Source

https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2017/UBUNTU-CVE-2017-7418.json

JSON Data

https://api.test.osv.dev/v1/vulns/UBUNTU-CVE-2017-7418

Upstream

CVE-2017-7418

Published

2017-04-04T17:59:00Z

Modified

2025-10-24T04:46:14Z

Severity

5.5 (Medium) CVSS_V3 - CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N CVSS Calculator
Ubuntu - medium

Summary

[none]

Details

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

Affected packages

Ubuntu:16.04:LTS / proftpd-dfsg

Package

Name: proftpd-dfsg
Purl: pkg:deb/ubuntu/proftpd-dfsg@1.3.5a-1ubuntu0.1?arch=source&distro=xenial

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Affected versions

1.*

1.3.5-2

1.3.5a-1

1.3.5a-1build1

1.3.5a-1ubuntu0.1

Ecosystem specific

{
    "binaries": [
        {
            "binary_name": "proftpd-basic",
            "binary_version": "1.3.5a-1ubuntu0.1"
        },
        {
            "binary_name": "proftpd-dev",
            "binary_version": "1.3.5a-1ubuntu0.1"
        },
        {
            "binary_name": "proftpd-mod-geoip",
            "binary_version": "1.3.5a-1ubuntu0.1"
        },
        {
            "binary_name": "proftpd-mod-ldap",
            "binary_version": "1.3.5a-1ubuntu0.1"
        },
        {
            "binary_name": "proftpd-mod-mysql",
            "binary_version": "1.3.5a-1ubuntu0.1"
        },
        {
            "binary_name": "proftpd-mod-odbc",
            "binary_version": "1.3.5a-1ubuntu0.1"
        },
        {
            "binary_name": "proftpd-mod-pgsql",
            "binary_version": "1.3.5a-1ubuntu0.1"
        },
        {
            "binary_name": "proftpd-mod-sqlite",
            "binary_version": "1.3.5a-1ubuntu0.1"
        }
    ]
}