PT-2022-9290 · Schneider Electric · Evlink Parking Evf2+4

Published 2022-01-28 · Updated 2022-02-03 · CVE-2021-22820

Positive Technologies (AI Summary)

CVSS v3.1

9.8

Critical

Base vector

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

Name of the Vulnerable Software and Affected Versions EVlink City EVC1S22P4 / EVC1S7P4 versions prior to R8 V3.4.0.2 EVlink Parking EVW2 / EVF2 / EVP2PE versions prior to R8 V3.4.0.2 EVlink Smart Wallbox EVB1A versions prior to R8 V3.4.0.2

Description A CWE-614 Insufficient Session Expiration issue exists, allowing an attacker to maintain unauthorized access to the charger station web server over a hijacked session, even after the legitimate user has changed their password.

Recommendations For EVlink City EVC1S22P4 / EVC1S7P4 versions prior to R8 V3.4.0.2, update to R8 V3.4.0.2 or later to resolve the issue. For EVlink Parking EVW2 / EVF2 / EVP2PE versions prior to R8 V3.4.0.2, update to R8 V3.4.0.2 or later to resolve the issue. For EVlink Smart Wallbox EVB1A versions prior to R8 V3.4.0.2, update to R8 V3.4.0.2 or later to resolve the issue.

Fix

Insufficient Session Expiration

Weakness Enumeration

CWE-613

Related Identifiers

CVE-2021-22820

Affected Products

Evlink City Evc1S22P4

Evlink City Evc1S7P4

Evlink Parking Evf2

Evlink Parking Evp2Pe

Evlink Smart Wallbox Evb1A

References · 3

• https://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2021-348-02 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-22820 · Security Note
• https://osv.dev/vulnerability/CVE-2021-22820 · Vendor Advisory