elgin-nfce-printer

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

MEDIUM

Why flagged This PKGBUILD downloads a prebuilt RAR archive from a CloudFront CDN URL (d2u2qhufg0q9tn.cloudfront.net) that is not the official vendor domain (elgin.com.br). The archive contains a prebuilt binary 'rastertohprt' that is installed as a CUPS filter (executed with elevated trust in the print subsystem). While a sha256sum is provided, the source host is a CDN distribution endpoint rather than the official vendor site, making it impossible to verify the chain of custody from the vendor. This is a classic medium-severity supply-chain concern: a prebuilt binary from an unverifiable third-party host installed into a privileged system location. It is not clearly malicious, but the combination of unofficial host + executed binary + CUPS filter context 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:13 source=("$pkgname-$pkgver.rar::https://d2u2qhufg0q9tn.cloudfront.net/assets/arquivos/imgCard_4ce638a5-22e5-4a0d-a820-0108152ced91_imgCard_3969ab8d-70ab-4b53-ac90-d84cc55ddd70_Elgin_i9_Linux_Driver_v1.2.3Linux.rar")

MEDIUM AI review llm_review

An AI model (anthropic/claude-4.6-sonnet-20260217) reviewed this and agrees it is MEDIUM (confidence 72%): This PKGBUILD downloads a prebuilt RAR archive from a CloudFront CDN URL (d2u2qhufg0q9tn.cloudfront.net) that is not the official vendor domain (elgin.com.br). The archive contains a prebuilt binary 'rastertohprt' that is installed as a CUPS filter (executed with elevated trust in the print subsystem). While a sha256sum is provided, the source host is a CDN distribution endpoint rather than the official vendor site, making it impossible to verify the chain of custody from the vendor. This is a classic medium-severity supply-chain concern: a prebuilt binary from an unverifiable third-party host installed into a privileged system location. It is not clearly malicious, but the combination of unofficial host + executed binary + CUPS filter context warrants medium severity.

PKGBUILD

1 offending line(s) highlighted

      1# Maintainer: Rafael <rafaelrc7@gmail.com>
    
      2
    
      3pkgname=elgin-nfce-printer
    
      4pkgver=1.2.3
    
      5pkgrel=2
    
      6pkgdesc="Drivers for Elgin NFC-e RM22, i7, i8 and i9 printers."
    
      7arch=("x86_64" "i686")
    
      8url="https://www.elgin.com.br/Produtos/Automacao/impressorasn%C3%A3ofiscais/impressora-termica-de-cupom-i9-full"
    
      9license=("unknown")
    
      10depends=("libxcrypt-compat")
    
      11makedepends=("unrar")
    
      12install=
    
      13source=("$pkgname-$pkgver.rar::https://d2u2qhufg0q9tn.cloudfront.net/assets/arquivos/imgCard_4ce638a5-22e5-4a0d-a820-0108152ced91_imgCard_3969ab8d-70ab-4b53-ac90-d84cc55ddd70_Elgin_i9_Linux_Driver_v1.2.3Linux.rar")
    
      14noextract=("$pkgname-$pkgver.rar")
    
      15sha256sums=("37ed5a41f92ce5f70f0d534a1bd0d31450ad2c8dc33331535d4434428b587625")
    
      16
    
      17prepare() {
    
      18	unrar x -ad -y "./$pkgname-$pkgver.rar"
    
      19}
    
      20
    
      21package() {
    
      22	cd "$pkgname-$pkgver/Elgin_i9_linux_driver_v1.2.3/setup"
    
      23
    
      24	_FILTERDIR="${pkgdir}/usr/lib/cups/filter/"
    
      25	_PPDDIR="${pkgdir}/usr/share/ppd/elgin-nfce-printer/"
    
      26
    
      27	case $CARCH in
    
      28		i686)   _RASTERTOHPRT="./x86/rastertohprt" ;;
    
      29		x86_64) _RASTERTOHPRT="./x64/rastertohprt" ;;
    
      30	esac
    
      31
    
      32	install -Dm755 "${_RASTERTOHPRT}" "${_FILTERDIR}/rastertohprt"
    
      33	install -d "${_PPDDIR}"
    
      34	install -Dm644 ../ppd/*.ppd  "${_PPDDIR}"
    
      35}
    
      36
    
      37

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