PT-2020-2434 · Siemens · Scalance S623+3

Published 2020-02-11 · Updated 2023-04-25 · CVE-2019-13925

Positive Technologies (AI Summary)

CVSS v2.0

7.8

High

Base vector

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

Name of the Vulnerable Software and Affected Versions SCALANCE S602 versions 3.0 through 4.0 SCALANCE S612 versions 3.0 through 4.0 SCALANCE S623 versions 3.0 through 4.0 SCALANCE S627-2M versions 3.0 through 4.0

Description A vulnerability has been identified that could cause a Denial-of-Service condition of the web server. This issue is related to an uncontrolled resource consumption (exhaustion) that can be exploited by sending specially crafted packets to port 443/tcp of affected devices, potentially allowing a remote attacker to cause a service disruption.

Recommendations For SCALANCE S602 versions 3.0 through 4.0, consider restricting access to port 443/tcp as a temporary workaround until a patch is available. For SCALANCE S612 versions 3.0 through 4.0, consider restricting access to port 443/tcp as a temporary workaround until a patch is available. For SCALANCE S623 versions 3.0 through 4.0, consider restricting access to port 443/tcp as a temporary workaround until a patch is available. For SCALANCE S627-2M versions 3.0 through 4.0, consider restricting access to port 443/tcp as a temporary workaround until a patch is available.

Fix

Resource Exhaustion

Weakness Enumeration

CWE-400

Related Identifiers

BDU:2020-02440

CVE-2019-13925

Affected Products

Scalance S602

Scalance S612

Scalance S623

Scalance S627-2M

References · 5

• https://nvd.nist.gov/vuln/detail/CVE-2019-13925 · Security Note
• https://osv.dev/vulnerability/CVE-2019-13925 · Vendor Advisory
• https://cert-portal.siemens.com/productcert/pdf/ssa-591405.pdf · Vendor Advisory
• https://bdu.fstec.ru/vul/2020-02440 · Security Note
• https://us-cert.gov/ics/advisories/icsa-20-042-10 · Note