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.
| Version | Base score | Base severity | Vector |
|---|
| Hyperlink | Resource Type |
|---|
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.
| Type | CWE ID | Description |
|---|---|---|
| text | N/A | n/a |
| Version | Base score | Base severity | Vector |
|---|
| CAPEC ID | Description |
|---|
| Event | Date |
|---|
| Hyperlink | Resource |
|---|---|
| https://github.com/proftpd/proftpd/commit/ecff21e0d0e84f35c299ef91d7fda088e516d4ed | x_refsource_CONFIRM |
| https://github.com/proftpd/proftpd/commit/f59593e6ff730b832dbe8754916cb5c821db579f | x_refsource_CONFIRM |
| http://bugs.proftpd.org/show_bug.cgi?id=4295 | x_refsource_CONFIRM |
| http://www.securityfocus.com/bid/97409 | vdb-entry x_refsource_BID |
| https://github.com/proftpd/proftpd/pull/444/commits/349addc3be4fcdad9bd4ec01ad1ccd916c898ed8 | x_refsource_CONFIRM |
| http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00004.html | vendor-advisory x_refsource_SUSE |
| http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00022.html | vendor-advisory x_refsource_SUSE |
| http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00009.html | vendor-advisory x_refsource_SUSE |
| Version | Base score | Base severity | Vector |
|---|
| CAPEC ID | Description |
|---|
| Event | Date |
|---|
| Hyperlink | Resource |
|---|---|
| https://github.com/proftpd/proftpd/commit/ecff21e0d0e84f35c299ef91d7fda088e516d4ed | x_refsource_CONFIRM x_transferred |
| https://github.com/proftpd/proftpd/commit/f59593e6ff730b832dbe8754916cb5c821db579f | x_refsource_CONFIRM x_transferred |
| http://bugs.proftpd.org/show_bug.cgi?id=4295 | x_refsource_CONFIRM x_transferred |
| http://www.securityfocus.com/bid/97409 | vdb-entry x_refsource_BID x_transferred |
| https://github.com/proftpd/proftpd/pull/444/commits/349addc3be4fcdad9bd4ec01ad1ccd916c898ed8 | x_refsource_CONFIRM x_transferred |
| http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00004.html | vendor-advisory x_refsource_SUSE x_transferred |
| http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00022.html | vendor-advisory x_refsource_SUSE x_transferred |
| http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00009.html | vendor-advisory x_refsource_SUSE x_transferred |
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.
| Date Added | Due Date | Vulnerability Name | Required Action |
|---|---|---|---|
| N/A |
| Type | Version | Base score | Base severity | Vector |
|---|---|---|---|---|
| Primary | 3.0 | 5.5 | MEDIUM | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N |
| Primary | 2.0 | 2.1 | LOW | AV:L/AC:L/Au:N/C:N/I:P/A:N |