PT-2021-16734 · Unknown · Automation License Manager 6+1

Published 2021-08-10 · Updated 2021-08-18 · CVE-2021-25659

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

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

Name of the Vulnerable Software and Affected Versions Automation License Manager 5 (All versions) Automation License Manager 6 versions prior to V6.0 SP9 Update 2

Description A vulnerability has been identified that could lead to a denial-of-service, preventing legitimate users from using the system. This occurs when specially crafted packets are sent to port 4410/tcp of an affected system, causing extensive memory consumption.

Recommendations For Automation License Manager 5, at the moment, there is no information about a newer version that contains a fix for this vulnerability. For Automation License Manager 6 versions prior to V6.0 SP9 Update 2, update to V6.0 SP9 Update 2 or later to resolve the issue. As a temporary workaround, consider restricting access to port 4410/tcp to minimize the risk of exploitation.

Resource Exhaustion

Weakness Enumeration

CWE-400

Related Identifiers

CVE-2021-25659

Affected Products

Automation License Manager 5

Automation License Manager 6

References · 4

• https://osv.dev/vulnerability/CVE-2021-25659 · Vendor Advisory
• https://cert-portal.siemens.com/productcert/pdf/ssa-158827.pdf · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-25659 · Security Note
• https://t.me/cibsecurity/27050 · Telegram Post