ProFTPD < 1.3.5b / 1.3.6x < 1.3.6rc2 weak Diffie-Hellman key

Medium Nessus Plugin ID 106755


The remote FTP server is affected by a Denial of Service vulnerability.


The remote host is using ProFTPD, a free FTP server for Unix and Linux.
According to its banner, the version of ProFTPD installed on the remote host is prior to 1.3.5b or 1.3.6x prior to 1.3.6rc2 and is affected by an issue in the mod_tls module, which might cause a weaker than intended Diffie-Hellman key to be used.


Upgrade to ProFTPD version 1.3.5b / 1.3.6rc2 or later.

See Also

Plugin Details

Severity: Medium

ID: 106755

File Name: proftpd_1_3_6_rc2.nasl

Version: 1.2

Type: remote

Family: FTP

Published: 2018/02/12

Updated: 2019/11/08

Dependencies: 10092, 10084

Configuration: Enable paranoid mode

Risk Information

Risk Factor: Medium

CVSS v2.0

Base Score: 5

Temporal Score: 3.7

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:N/A:N

Temporal Vector: CVSS2#E:U/RL:OF/RC:C

CVSS v3.0

Base Score: 7.5

Temporal Score: 6.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/a:proftpd:proftpd

Required KB Items: ftp/proftpd, Settings/ParanoidReport

Exploit Ease: No known exploits are available

Patch Publication Date: 2016/03/11

Vulnerability Publication Date: 2016/03/08

Reference Information

CVE: CVE-2016-3125

BID: 84327