PT-2022-9286 · Unknown+1 · Scadapack 333E+9

Published 2022-01-28 · Updated 2022-02-03 · CVE-2021-22816

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 SCADAPack 312E, 313E, 314E, 330E, 333E, 334E, 337E, 350E and 357E RTUs with firmware versions prior to V8.18.1

Description A vulnerability exists that could cause a Denial of Service when receiving a specially crafted request over Modbus, and the RTU is configured as a Modbus server.

Recommendations For SCADAPack 312E, 313E, 314E, 330E, 333E, 334E, 337E, 350E and 357E RTUs with firmware versions prior to V8.18.1, update the firmware to a version later than V8.18.1 to resolve the issue. As a temporary workaround, consider restricting access to the Modbus server to minimize the risk of exploitation.

Fix

Improper Check for Exceptional Conditions

Weakness Enumeration

CWE-754

Related Identifiers

CVE-2021-22816

Affected Products

Modbus

Scadapack 312E

Scadapack 313E

Scadapack 314E

Scadapack 330E

Scadapack 333E

Scadapack 334E

Scadapack 337E

Scadapack 350E

Scadapack 357E

References · 3

• https://nvd.nist.gov/vuln/detail/CVE-2021-22816 · Security Note
• https://osv.dev/vulnerability/CVE-2021-22816 · Vendor Advisory
• https://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2021-313-01 · Vendor Advisory