brother-dcpj562dw-cups-bin

MEDIUM

maintainer marlxx 0 votes scanned 2026-11-01 00:21:48.120785

View on AUR

Why flagged

The PKGBUILD downloads a prebuilt i386 .deb binary (a CUPS wrapper, which is an executed binary/library) from download.brother.com, which is Brother's official download server. The host is legitimate — Brother routinely distributes printer drivers this way, and many AUR packages for Brother printers follow this exact pattern. However, the package installs a prebuilt binary without any signature verification beyond a single MD5 checksum (which is cryptographically weak and provides minimal integrity assurance). The binary is executed/installed directly into the system. This is a standard AUR pattern for Brother printer drivers and the host is the official vendor CDN, so the supply-chain risk is real but low in practice. The cheaper model's MEDIUM rating is defensible but slightly over-cautious given the well-known legitimate vendor origin. Still, because it is an unverified prebuilt binary (not source-built), medium is technically appropriate per the rating criteria.

Triggered rules

Medium source=() URL on a non-standard host source_untrusted_domain

One or more source=() URLs point to a host outside the trusted allowlist (github.com, gitlab.com, codeberg.org, pypi.org, …).

PKGBUILD:11 source=("http://download.brother.com/welcome/dlf102104/dcpj562dwcupswrapper-1.0.0-0.i386.deb")

Medium AI review llm_review

An AI model (anthropic/claude-4.6-sonnet-20260217) reviewed this and agrees it is MEDIUM (confidence 72%): The PKGBUILD downloads a prebuilt i386 .deb binary (a CUPS wrapper, which is an executed binary/library) from download.brother.com, which is Brother's official download server. The host is legitimate — Brother routinely distributes printer drivers this way, and many AUR packages for Brother printers follow this exact pattern. However, the package installs a prebuilt binary without any signature verification beyond a single MD5 checksum (which is cryptographically weak and provides minimal integrity assurance). The binary is executed/installed directly into the system. This is a standard AUR pattern for Brother printer drivers and the host is the official vendor CDN, so the supply-chain risk is real but low in practice. The cheaper model's MEDIUM rating is defensible but slightly over-cautious given the well-known legitimate vendor origin. Still, because it is an unverified prebuilt binary (not source-built), medium is technically appropriate per the rating criteria.

PKGBUILD

1 offending line(s) highlighted

      1# Maintainer: marlxx <marlxxja77@gmail.com>
    
      2
    
      3pkgname=brother-dcpj562dw-cups-bin
    
      4pkgver=1.0.0
    
      5pkgrel=1
    
      6pkgdesc="CUPS wrapper for Brother DCP-J562DW printer"
    
      7arch=("i686" "x86_64")
    
      8url="http://support.brother.com/g/b/producttop.aspx?c=gb&lang=en&prod=dcpj562dw_eu_as"
    
      9license=("EULA")
    
      10groups=("base-devel")
    
      11source=("http://download.brother.com/welcome/dlf102104/dcpj562dwcupswrapper-1.0.0-0.i386.deb")
    
      12md5sums=("a409c03e3aab1c8c28bb2ffcc860b6cd")
    
      13
    
      14package() {
    
      15	tar -xf data.tar.gz -C "${pkgdir}"
    
      16}
    
      17

Scan history

Scanned at (UTC)	Severity	Rules
2026-11-01 00:21:48	Medium	2
2026-10-31 00:07:41	Medium	2
2026-10-30 00:29:30	Medium	2
2026-10-29 00:13:55	Medium	2
2026-10-28 00:06:54	Medium	2
2026-10-27 00:23:28	Medium	2
2026-10-26 00:12:40	Medium	2
2026-10-25 00:20:48	Medium	2
2026-10-24 00:14:55	Medium	2
2026-10-23 00:02:19	Medium	2
2026-10-22 00:13:10	Medium	2
2026-10-21 00:12:50	Medium	2
2026-10-20 00:10:31	Medium	2
2026-10-19 00:03:55	Medium	2
2026-10-18 00:06:55	Medium	2
2026-10-17 00:21:55	Medium	2
2026-10-16 00:12:47	Medium	2
2026-10-15 00:28:05	Medium	2
2026-10-14 00:06:47	Medium	2
2026-10-13 00:23:45	Medium	2