Serv-U < SFTP Server Authentication Bypass Vulnerability

High Nessus Network Monitor Plugin ID 5712


The remote SFTP server is affected by an authentication bypass vulnerability.


The remote host is running Serv-U File Server, an FTP/SFTP Server for Windows.

Versions of Serv-U earlier than are potentially affected by a security bypass vulnerability in the SFTP module. By supplying a valid username and blank password, an attacker can gain unauthorized access to the affected application.


Upgrade to Serv-U version or later.

See Also

Plugin Details

Severity: High

ID: 5712

File Name: 5712.prm

Family: SSH

Published: 2010/11/18

Modified: 2016/11/23

Dependencies: 1967, 3059

Nessus ID: 50659

Risk Information

Risk Factor: High


Base Score: 7.5

Temporal Score: 6.2

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

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


Base Score: 7.3

Temporal Score: 6.8


Temporal Vector: CVSS3#E:F/RL:O/RC:C

Vulnerability Information

Patch Publication Date: 2010/11/16

Vulnerability Publication Date: 2010/11/16

Reference Information

BID: 44905

OSVDB: 69386