Siemens Automation License Manager 5.x < 6.0.9 DoS (SSA-158827)

high Nessus Plugin ID 152531
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The remote host has software installed that is affected by a denial of service vulnerability.


The version of Siemens Automation License Manager installed on the remote host is version 5.x prior to 6.0.9. It is, therefore, affected by a denial of service vulnerability. An attacker could exploit this by sending specially crafted packets to port 4410/tcp of an affected system.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.


Upgrade to Siemens Automation License Manager 6.0+SP9+Upd2 (6.0.9) or later.

See Also

Plugin Details

Severity: High

ID: 152531

File Name: scada_siemens_alm_ssa_158827.nbin

Version: 1.3

Type: local

Agent: windows

Family: SCADA

Published: 8/12/2021

Updated: 8/17/2021

Dependencies: scada_app_siemens_alm_detect.nbin

Risk Information

CVSS Score Source: CVE-2021-25659


Risk Factor: Low

Score: 3.6


Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

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

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


Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

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

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

Vulnerability Information

CPE: cpe:/a:siemens:automation_license_manager

Required KB Items: installed_sw/Siemens Automation License Manager, SMB/Registry/Enumerated

Exploit Ease: No known exploits are available

Patch Publication Date: 8/10/2021

Vulnerability Publication Date: 8/10/2021

Reference Information

CVE: CVE-2021-25659

IAVB: 2021-B-0046