CoDeSys Authentication Bypass Directory Traversal

critical Nessus Plugin ID 62796
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The remote device is affected by a directory traversal vulnerability.


The remote device is a CoDeSys PLC (programmable logic controller).
Nessus was able to bypass the authentication mechanism and read an arbitrary file on the device by using a directory traversal string.


There are currently no known fixes. As a workaround, restrict access to the device.

See Also

Plugin Details

Severity: Critical

ID: 62796

File Name: scada_codesys_dir_traversal.nbin

Version: 1.54

Type: remote

Family: SCADA

Published: 11/2/2012

Updated: 7/12/2021

Dependencies: os_fingerprint.nasl, scada_codesys_detection.nbin

Risk Information

CVSS Score Source: CVE-2012-6069


Risk Factor: Medium

Score: 5.9


Risk Factor: Critical

Base Score: 10

Temporal Score: 8.5

Vector: AV:N/AC:L/Au:N/C:C/I:C/A:C

Temporal Vector: E:U/RL:U/RC:ND

Vulnerability Information

CPE: cpe:/a:3ssoftware:codesys

Required KB Items: SCADA/CoDeSys

Exploit Ease: No known exploits are available

Vulnerability Publication Date: 10/26/2012

Reference Information

CVE: CVE-2012-6068, CVE-2012-6069

BID: 52942, 56300

ICSA: 12-249-02, 13-011-01, 14-084-01

ICS-ALERT: 12-097-02