CVE-2021-20860

Cross-site request forgery (CSRF) vulnerability in ELECOM LAN 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 remote authenticated attacker to hijack the authentication of an administrator via a specially crafted page.
CSRF
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
8.8 HIGH
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
jpcertCNA
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CVEADP
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Base Score
CVSS 3.x
EPSS Score
Percentile: 27%
VendorProductVersion
elecomwrc-1167gst2_firmware
𝑥
≤ 1.25
elecomwrc-1167gst2a_firmware
𝑥
≤ 1.25
elecomwrc-1167gst2h_firmware
𝑥
≤ 1.25
elecomwrc-2533gs2-b_firmware
𝑥
≤ 1.52
elecomwrc-2533gs2-w_firmware
𝑥
≤ 1.52
elecomwrc-1750gs_firmware
𝑥
≤ 1.03
elecomwrc-1750gsv_firmware
𝑥
≤ 2.11
elecomwrc-1900gst_firmware
𝑥
≤ 1.03
elecomwrc-2533gst_firmware
𝑥
≤ 1.03
elecomwrc-2533gst2_firmware
𝑥
≤ 1.25
elecomwrc-2533gsta_firmware
𝑥
≤ 1.03
elecomwrc-2533gst2sp_firmware
𝑥
≤ 1.25
elecomwrc-2533gst2-g_firmware
𝑥
≤ 1.25
elecomedwrc-2533gst2_firmware
𝑥
≤ 1.25
𝑥
= Vulnerable software versions
Common Weakness Enumeration
References
https://jvn.jp/en/jp/JVN88993473/index.html
https://www.elecom.co.jp/news/security/20211130-01/
https://jvn.jp/en/jp/JVN88993473/index.html
https://www.elecom.co.jp/news/security/20211130-01/