提出 #977168: Netcore NR268 Router NR268-V1.7.121109.bin Insufficient Verification of Data Authenticity情報

タイトルNetcore NR268 Router NR268-V1.7.121109.bin Insufficient Verification of Data Authenticity
説明The NR268 firmware authenticity check is forgeable. `mtd_write` accepts an image when bytes `0x20..0x2f` equal `MD5(MD5(file[0x50:]) || hardcoded_constant)` and does not verify a vendor signature, public key, or device secret. An attacker who can reach the firmware upload route can modify a valid image, recompute the accepted header locally, and install the forged firmware.
ソース⚠️ https://github.com/draw-ctf/report/blob/main/NR268/2026.08.19-netcore-nr268-firmware-forgery.md
ユーザー
 nebula (UID 101212)
送信2026年09月14日 10:02 (28 日 ago)
モデレーション2026年10月11日 16:48 (27 days later)
ステータス重複
VulDBエントリ404944 [Netcore NR268 1.7.121109 Firmware Signature Validation put_file.cgi mtd_write 弱い認証]
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