CVE-2021-22708

CWE-3473 documents3 sources

Severity

7.2HIGH

EPSS

0.2%

top 52.20%

CISA KEV

Not in KEV

Exploit

No known exploits

Affected products

Schneider-electric Evlink City Evc1s22p4 Firmware Schneider-electric Evlink City Evc1s7p4 Firmware Schneider-electric Evlink Parking Ev.2 Firmware +3 more

Timeline

PublishedJul 21

Latest updateMay 24

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.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:HExploitability: 1.2 | Impact: 5.9

Affected Packages6 packages

▶NVDschneider-electric/evlink_smart_wallbox_evb1a_firmware< r8_v3.4.0.1

▶NVDschneider-electric/evlink_parking_evf2_firmware< r8_v3.4.0.1

▶NVDschneider-electric/evlink_parking_evw2_firmware< r8_v3.4.0.1

▶NVDschneider-electric/evlink_city_evc1s7p4_firmware< r8_v3.4.0.1

▶NVDschneider-electric/evlink_city_evc1s22p4_firmware< r8_v3.4.0.1

🔴Vulnerability Details

GHSA

GHSA-2wrx-q5xx-wffm: A CWE-347: Improper Verification of Cryptographic Signature vulnerability exists in EVlink City (EVC1S22P4 / EVC1S7P4 all versions prior to R8 V3↗2022-05-24

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CVEList

CVE-2021-22708: A CWE-347: Improper Verification of Cryptographic Signature vulnerability exists in EVlink City (EVC1S22P4 / EVC1S7P4 all versions prior to R8 V3↗2021-07-21

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