CVE-2021-22821

28.01.2022, 20:15

A CWE-918 Server-Side Request Forgery (SSRF) vulnerability exists that could cause the station web server to forward requests to unintended network targets when crafted malicious parameters are submitted to the charging station web server. Affected Products: EVlink City EVC1S22P4 / EVC1S7P4 (All versions prior to R8 V3.4.0.2 ), EVlink Parking EVW2 / EVF2 / EVP2PE (All versions prior to R8 V3.4.0.2), and EVlink Smart Wallbox EVB1A (All versions prior to R8 V3.4.0.2)

SSRF

Provider	Type	Base Score	Atk. Vector	Atk. Complexity	Priv. Required	Vector
NIST	NIST	8.6 HIGH	NETWORK	LOW	NONE	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:N
schneider	CNA	---				---
CVE	ADP	---				---

Base Score

CVSS 3.x

EPSS Score

Percentile: 42%

Vendor	Product	Version
schneider-electric	evlink_city_evc1s22p4_firmware	𝑥 < 3.4.0.2
schneider-electric	evlink_city_evc1s7p4_firmware	𝑥 < 3.4.0.2
schneider-electric	evlink_parking_evw2_firmware	𝑥 < 3.4.0.2
schneider-electric	evlink_parking_evf2_firmware	𝑥 < 3.4.0.2
schneider-electric	evlink_parking_evp2pe_firmware	𝑥 < 3.4.0.2
schneider-electric	evlink_smart_wallbox_evb1a_firmware	𝑥 < 3.4.0.2

𝑥

= Vulnerable software versions

Common Weakness Enumeration

CWE-918 - Server-Side Request Forgery (SSRF)
The web server receives a URL or similar request from an upstream component and retrieves the contents of this URL, but it does not sufficiently ensure that the request is being sent to the expected destination.

References

https://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2021-348-02