ProFTPD < 1.3.1rc1 mod_ctrls Module pr_ctrls_recv_request Function Local Overflow

Medium Nessus Plugin ID 17718

New! Vulnerability Priority Rating (VPR)

Tenable calculates a dynamic VPR for every vulnerability. VPR combines vulnerability information with threat intelligence and machine learning algorithms to predict which vulnerabilities are most likely to be exploited in attacks. Read more about what VPR is and how it's different from CVSS.

VPR Score: 7.4


The remote FTP server is affected by a local buffer overflow 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 earlier than 1.3.1rc1 and is affected by a local, stack-based buffer overflow. The function 'pr_ctrls_recv_request' in the file 'src/ctrls.c' belonging to the 'mod_ctrls' module does not properly handle large values in the 'reqarglen' parameter.

This error can allow a local attacker to execute arbitrary code.


Upgrade to ProFTPD version 1.3.1rc1 or later.

See Also

Plugin Details

Severity: Medium

ID: 17718

File Name: proftpd_1_3_1_rc1.nasl

Version: 1.7

Type: remote

Family: FTP

Published: 2011/11/18

Updated: 2018/11/15

Dependencies: 10084, 10092

Configuration: Enable paranoid mode

Risk Information

Risk Factor: Medium

VPR Score: 7.4

CVSS v2.0

Base Score: 6.6

Temporal Score: 5.5

Vector: CVSS2#AV:L/AC:M/Au:S/C:C/I:C/A:C

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

Vulnerability Information

CPE: cpe:/a:proftpd:proftpd

Required KB Items: ftp/proftpd, Settings/ParanoidReport

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 2006/12/12

Vulnerability Publication Date: 2006/12/12

Exploitable With

Core Impact

Reference Information

CVE: CVE-2006-6563

BID: 21587

EDB-ID: 394, 3330, 3333