CVE-2021-22708

Description

A CWE-347: Improper Verification of Cryptographic Signature vulnerability exists in EVlink City (EVC1S22P4 / EVC1S7P4 all versions prior to R8 V3.4.0.1), EVlink Parking (EVW2 / EVF2 / EV.2 all versions prior to R8 V3.4.0.1), and EVlink Smart Wallbox (EVB1A all versions prior to R8 V3.4.0.1 ) that could allow an attacker to craft a malicious firmware package and bypass the signature verification mechanism.

Related CPE's

oschneider-electricevlink_city_evc1s22p4_firmware********

vulnerable

hschneider-electricevlink_city_evc1s22p4-*******

oschneider-electricevlink_city_evc1s7p4_firmware********

vulnerable

hschneider-electricevlink_city_evc1s7p4-*******

oschneider-electricevlink_parking_evw2_firmware********

vulnerable

hschneider-electricevlink_parking_evw2-*******

oschneider-electricevlink_parking_evf2_firmware********

vulnerable

hschneider-electricevlink_parking_evf2-*******

oschneider-electricevlink_parking_ev.2_firmware********

vulnerable

hschneider-electricevlink_parking_ev.2-*******

References

http://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2021-194-06

Vendor Advisory

CvssV3 impact

BaseSeverity

HIGH

ConfidentialityImpact

HIGH

AttackComplexity

LOW

Scope

UNCHANGED

AttackVector

NETWORK

AvailabilityImpact

HIGH

IntegrityImpact

HIGH

PrivilegesRequired

HIGH

BaseScore

7.2

VectorString

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Version

3.1

UserInteraction

NONE

CvssV2 impact

AccessComplexity

LOW

ConfidentialityImpact

PARTIAL

AvailabilityImpact

PARTIAL

IntegrityImpact

PARTIAL

BaseScore

6.5

VectorString

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

Version

2.0

AccessVector

NETWORK

Authentication

SINGLE

Created by Yello
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