Siemens LOGO!8 PLC < 1.82.02 Improper Restriction within Memory Buffer or Session Fixation DoS (ICSA-19-162-03)

high Nessus Network Monitor Plugin ID 720304

Synopsis

A vulnerability has been identified in Siemens LOGO! devices allowing an attacker to cause a denial-of-service condition by using TCP port 10005 or stale Session ID.

Description

A vulnerability has been identified in Siemens LOGO! devices before V1.82.02. An attacker with network access to the port 10005/tcp could exploit improper restriction of operations within the bounds of a memory buffer. Alternatively, and attacker may obtain the session ID of an active user session. The integrated webserver does not invalidate the Session ID upon user logout.

Solution

Perform vendor recommended mitigations and apply available vendor upgrades.

See Also

https://www.us-cert.gov/ics/advisories/ICSA-19-162-03

Plugin Details

Severity: High

ID: 720304

Family: SCADA

Published: 10/7/2019

Updated: 10/7/2019

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5

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

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

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

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

Vulnerability Information

Patch Publication Date: 6/19/2019

Vulnerability Publication Date: 6/12/2019

Reference Information

CVE: CVE-2019-6571