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Advisories

Netcore NR255-V 1.5.130703 Out-of-Bounds Read in mtd_write Firmware Upload Validation

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severity
high
date
Affecting

  • NR255-V 1.5.130703

CWE
  • CWE-125 Out-of-bounds Read
CVSS
7.1
CVSS V4 Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N
Credit
Zhou Ao, Yin Luxing, Jiang Yuxuan, Liu Xin, @Nebusec
Description
Netcore NR255-V version 1.5.130703 contains an out-of-bounds read vulnerability in the mtd_write pre-flash validation routine triggered by short firmware uploads. Attackers can upload a truncated firmware image via put_file_cgi.c to trigger out-of-bounds reads across main.c, check_image_uuid.c, and oemMD5Update.c.

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