brother-dcp-9030cdn

maintainer bittervan · 0 votes · scanned 2026-08-03 00:08:14.047287

MEDIUM

Why flagged The PKGBUILD downloads a prebuilt i386 Debian binary package from 'd.brother-movie.com', which is not Brother's official domain (support.brother.com or download.brother.com). The package contains executed binaries (LPR/CUPS filter wrapper 'brother_lpdwrapper_dcp9030cdn') that are installed into CUPS filter directories and run with printer jobs. While Brother does use CDN/regional mirror domains and 'brother-movie.com' may be a legitimate Brother-affiliated CDN for the Chinese market, it is not a well-known official Brother domain and cannot be independently verified as such. The sha256 checksum provides some integrity protection, but if the host is controlled by a third party or the checksum was generated from a compromised binary, the installed CUPS filter binary would execute with elevated privileges during print jobs. This constitutes a real supply-chain concern: an executed binary from a non-canonical host. The risk is not clearly malicious but warrants medium severity.

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:14 source=("https://d.brother-movie.com/201911/dcp9030cdnpdrv-${pkgver}-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 Debian binary package from 'd.brother-movie.com', which is not Brother's official domain (support.brother.com or download.brother.com). The package contains executed binaries (LPR/CUPS filter wrapper 'brother_lpdwrapper_dcp9030cdn') that are installed into CUPS filter directories and run with printer jobs. While Brother does use CDN/regional mirror domains and 'brother-movie.com' may be a legitimate Brother-affiliated CDN for the Chinese market, it is not a well-known official Brother domain and cannot be independently verified as such. The sha256 checksum provides some integrity protection, but if the host is controlled by a third party or the checksum was generated from a compromised binary, the installed CUPS filter binary would execute with elevated privileges during print jobs. This constitutes a real supply-chain concern: an executed binary from a non-canonical host. The risk is not clearly malicious but warrants medium severity.

PKGBUILD

1 offending line(s) highlighted

      1# Maintainer: YOURNAME <you@example.com>
    
      2# Based on brother-dcp-9020cdn (libook <libook7@gmail.com>)
    
      3
    
      4pkgname="brother-dcp-9030cdn"
    
      5pkgver="1.0.2"
    
      6pkgrel=1
    
      7pkgdesc="LPR and CUPS driver for the Brother DCP-9030CDN"
    
      8url="https://support.brother.com/g/b/downloadtop.aspx?c=cn&lang=zh&prod=dcp9030cdn_cn"
    
      9arch=('i686' 'x86_64')
    
      10license=('custom:Brother-EULA')
    
      11depends=('cups')
    
      12depends_x86_64=('lib32-glibc')
    
      13makedepends=('libarchive')
    
      14source=("https://d.brother-movie.com/201911/dcp9030cdnpdrv-${pkgver}-0.i386.deb")
    
      15sha256sums=('a627ec6e6e682108efdb53ec134b7ad163869c550cc223ef675c03fcfbbb3c91')
    
      16
    
      17package() {
    
      18  cd "$srcdir"
    
      19
    
      20  # 解 deb 得到 data.tar.gz
    
      21  bsdtar -xf "dcp9030cdnpdrv-${pkgver}-0.i386.deb"
    
      22  bsdtar -xf data.tar.gz -C "$pkgdir"
    
      23
    
      24  # 确保标准 CUPS 目录存在
    
      25  install -d "$pkgdir/usr/lib/cups/filter"
    
      26  install -d "$pkgdir/usr/share/cups/model/Brother"
    
      27  install -d "$pkgdir/usr/share/ppd/Brother"
    
      28  install -d "$pkgdir/usr/share/licenses/$pkgname"
    
      29
    
      30  # Brother 自己放在 /opt/brother 里的 cupswrapper 内容
    
      31  local basedir="$pkgdir/opt/brother/Printers/dcp9030cdn"
    
      32  local cwdir="$basedir/cupswrapper"
    
      33
    
      34  # 安装 CUPS filter
    
      35  install -m755 "$cwdir/brother_lpdwrapper_dcp9030cdn" \
    
      36    "$pkgdir/usr/lib/cups/filter/brother_lpdwrapper_dcp9030cdn"
    
      37
    
      38  # 安装 PPD（两份，兼容不同查找路径）
    
      39  install -m644 "$cwdir/brother_dcp9030cdn_printer_en.ppd" \
    
      40    "$pkgdir/usr/share/cups/model/Brother/brother_dcp9030cdn_printer_en.ppd"
    
      41
    
      42  install -m644 "$cwdir/brother_dcp9030cdn_printer_en.ppd" \
    
      43    "$pkgdir/usr/share/ppd/Brother/brother_dcp9030cdn_printer_en.ppd"
    
      44
    
      45  # 安装许可证（从 /opt/brother 里搬一份出来）
    
      46  install -m644 "$basedir/LICENSE_ENG.txt" \
    
      47    "$pkgdir/usr/share/licenses/$pkgname/LICENSE_ENG.txt"
    
      48
    
      49  # 权限规范一点（可选）
    
      50  chmod -R go-w "$pkgdir/opt/brother"
    
      51}
    
      52

Scan history

Scanned at (UTC)	Severity	Rules
2026-08-03 00:08:14	MEDIUM	2
2026-08-02 00:16:08	MEDIUM	2
2026-08-01 00:11:18	MEDIUM	2
2026-07-31 00:14:10	MEDIUM	2
2026-07-30 00:17:23	MEDIUM	2
2026-07-29 00:25:53	MEDIUM	2
2026-07-28 00:07:28	MEDIUM	2
2026-07-27 00:24:32	MEDIUM	2
2026-07-26 00:07:32	MEDIUM	2
2026-07-25 00:13:44	MEDIUM	2
2026-07-24 00:02:28	MEDIUM	2
2026-07-23 00:14:47	MEDIUM	2
2026-07-22 00:29:32	MEDIUM	2
2026-07-21 00:24:15	MEDIUM	2
2026-07-20 00:19:49	MEDIUM	2
2026-07-19 00:17:08	MEDIUM	2
2026-07-18 00:14:48	MEDIUM	2
2026-07-17 00:06:16	MEDIUM	2
2026-07-16 00:05:41	MEDIUM	2
2026-07-15 00:09:25	MEDIUM	2