PT-2021-20292 · Siemens · Simatic Cp 1543Sp-1+1

CVE-2021-33716 · Published 2021-09-14 · Updated 2022-12-08

Positive Technologies (AI Summary)

CVSS v3.1

6.5

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions: SIMATIC CP 1543-1 (incl. SIPLUS variants) versions prior to V3.0 SIMATIC CP 1545-1 versions prior to V1.1

Description: A vulnerability has been identified that allows an attacker with access to the subnet of the affected device to retrieve sensitive information stored in cleartext.

Recommendations: For SIMATIC CP 1543-1 (incl. SIPLUS variants) versions prior to V3.0, update to version V3.0 or later. For SIMATIC CP 1545-1 versions prior to V1.1, update to version V1.1 or later.

Fix

Cleartext Storage of Sensitive Information

Weakness Enumeration

CWE-312

Related Identifiers

CVE-2021-33716

Affected Products

Simatic Cp 1543Sp-1

Simatic Cp 1545-1

References · 4

• https://cert-portal.siemens.com/productcert/pdf/ssa-535997.pdf · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-33716 · Security Note
• https://osv.dev/vulnerability/CVE-2021-33716 · Vendor Advisory
• https://t.me/cibsecurity/28787 · Telegram Post