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    CVE-2021-20862

    Improper access control vulnerability in ELECOM routers (WRC-1167GST2 firmware v1.25 and prior, WRC-1167GST2A firmware v1.25 and prior, WRC-1167GST2H firmware v1.25 and prior, WRC-2533GS2-B firmware v1.52 and prior, WRC-2533GS2-W firmware v1.52 and prior, WRC-1750GS firmware v1.03 and prior, WRC-1750GSV firmware v2.11 and prior, WRC-1900GST firmware v1.03 and prior, WRC-2533GST firmware v1.03 and prior, WRC-2533GSTA firmware v1.03 and prior, WRC-2533GST2 firmware v1.25 and prior, WRC-2533GST2SP firmware v1.25 and prior, WRC-2533GST2-G firmware v1.25 and prior, and EDWRC-2533GST2 firmware v1.25 and prior) allows a network-adjacent unauthenticated attacker to bypass access restriction, and to obtain anti-CSRF tokens and change the product's settings via unspecified vectors.

    Published:Dec 1, 2021
    Last Modified:Nov 21, 2024
    EPS:Dec 1, 2021
    EPSS Score:0.00103
    CVSS Score:4.3

    Affected Products

    Vendor
    Elecom
    Product
    Edwrc-2533gst2
    Vendor
    Elecom
    Product
    Edwrc-2533gst2 Firmware
    Vendor
    Elecom
    Product
    Wrc-1167gst2
    Vendor
    Elecom
    Product
    Wrc-1167gst2 Firmware
    Vendor
    Elecom
    Product
    Wrc-1167gst2a
    Vendor
    Elecom
    Product
    Wrc-1167gst2a Firmware
    Vendor
    Elecom
    Product
    Wrc-1167gst2h
    Vendor
    Elecom
    Product
    Wrc-1167gst2h Firmware
    Vendor
    Elecom
    Product
    Wrc-1750gs
    Vendor
    Elecom
    Product
    Wrc-1750gs Firmware
    Vendor
    Elecom
    Product
    Wrc-1750gsv
    Vendor
    Elecom
    Product
    Wrc-1750gsv Firmware
    Vendor
    Elecom
    Product
    Wrc-1900gst
    Vendor
    Elecom
    Product
    Wrc-1900gst Firmware
    Vendor
    Elecom
    Product
    Wrc-2533gs2-b
    Vendor
    Elecom
    Product
    Wrc-2533gs2-b Firmware
    Vendor
    Elecom
    Product
    Wrc-2533gs2-w
    Vendor
    Elecom
    Product
    Wrc-2533gs2-w Firmware
    Vendor
    Elecom
    Product
    Wrc-2533gst
    Vendor
    Elecom
    Product
    Wrc-2533gst2
    Vendor
    Elecom
    Product
    Wrc-2533gst2-g
    Vendor
    Elecom
    Product
    Wrc-2533gst2-g Firmware
    Vendor
    Elecom
    Product
    Wrc-2533gst2 Firmware
    Vendor
    Elecom
    Product
    Wrc-2533gst2sp
    Vendor
    Elecom
    Product
    Wrc-2533gst2sp Firmware
    Vendor
    Elecom
    Product
    Wrc-2533gst Firmware
    Vendor
    Elecom
    Product
    Wrc-2533gsta
    Vendor
    Elecom
    Product
    Wrc-2533gsta Firmware

    Exploits

    No exploit reference

    Common Weakness Enumeration

    No CWE recorded yet

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Related CVEs

    CVE-2022-25915 (CVSS 8.8) — Improper access control vulnerability in ELECOM LAN routers (WRC-1167GST2 firmware v1.25 and prior, WRC-1167GS…
    CVE-2021-20864 (CVSS 8.8) — Improper access control vulnerability in ELECOM routers (WRC-1167GST2 firmware v1.25 and prior, WRC-1167GST2A …
    CVE-2021-20863 (CVSS 8) — OS command injection vulnerability in ELECOM routers (WRC-1167GST2 firmware v1.25 and prior, WRC-1167GST2A fir…
    CVE-2021-20861 (CVSS 8.8) — Improper access control vulnerability in ELECOM LAN routers (WRC-1167GST2 firmware v1.25 and prior, WRC-1167GS…
    CVE-2021-20860 (CVSS 8.8) — Cross-site request forgery (CSRF) vulnerability in ELECOM LAN routers (WRC-1167GST2 firmware v1.25 and prior, …
    CVE-2021-20859 (CVSS 8) — ELECOM LAN routers (WRC-1167GST2 firmware v1.25 and prior, WRC-1167GST2A firmware v1.25 and prior, WRC-1167GST…

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High