freedownloadmanager-bin

maintainer eoliveira · 1 votes · scanned 2026-08-03 00:08:14.047287

MEDIUM

Why flagged This PKGBUILD downloads a prebuilt binary .deb from files2.freedownloadmanager.org, which is the official vendor's own download host (Free Download Manager is a legitimate, well-known proprietary download manager and this subdomain is their standard distribution endpoint). The binary is extracted and installed directly, including native executables under /opt/freedownloadmanager/. The main concern is sha256sums=('SKIP'), which means there is no integrity verification of the downloaded binary — if the host is compromised or the URL is silently redirected, a malicious binary could be installed without detection. This is a real supply-chain concern for an executed binary, even from an official vendor host. The pattern (prebuilt proprietary binary + SKIP checksum) is a genuine medium-severity issue: not malicious, but the lack of checksum verification for an executed binary is a meaningful risk. No piracy or broken flags apply.

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=("${pkgname}-${pkgver}-amd64.deb::https://files2.freedownloadmanager.org/6/latest/freedownloadmanager.deb")

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 binary .deb from files2.freedownloadmanager.org, which is the official vendor's own download host (Free Download Manager is a legitimate, well-known proprietary download manager and this subdomain is their standard distribution endpoint). The binary is extracted and installed directly, including native executables under /opt/freedownloadmanager/. The main concern is sha256sums=('SKIP'), which means there is no integrity verification of the downloaded binary — if the host is compromised or the URL is silently redirected, a malicious binary could be installed without detection. This is a real supply-chain concern for an executed binary, even from an official vendor host. The pattern (prebuilt proprietary binary + SKIP checksum) is a genuine medium-severity issue: not malicious, but the lack of checksum verification for an executed binary is a meaningful risk. No piracy or broken flags apply.

PKGBUILD

1 offending line(s) highlighted

      1# Maintainer: Seu Nome <seuemail@exemplo.com>
    
      2# Contributor: Freedownloadmanager Team <support@freedownloadmanager.org>
    
      3# Contributor: Elizeu Oliveira
    
      4
    
      5pkgname=freedownloadmanager-bin
    
      6pkgver=6.33.1.6648
    
      7pkgrel=1
    
      8pkgdesc="Free Download Manager (FDM) - powerful modern download accelerator and organizer (binary release)."
    
      9arch=('x86_64')
    
      10url="https://www.freedownloadmanager.org/"
    
      11license=('custom')
    
      12depends=('openssl' 'xdg-utils' 'ffmpeg' 'libtorrent' 'gst-plugins-base')
    
      13makedepends=('desktop-file-utils' 'hicolor-icon-theme')
    
      14source=("${pkgname}-${pkgver}-amd64.deb::https://files2.freedownloadmanager.org/6/latest/freedownloadmanager.deb")
    
      15sha256sums=('SKIP')
    
      16
    
      17prepare() {
    
      18    mkdir -p "${srcdir}/${pkgname}-${pkgver}"
    
      19    # Extrai o .deb baixado
    
      20    bsdtar -xf "${srcdir}/${pkgname}-${pkgver}-amd64.deb" -C "${srcdir}/${pkgname}-${pkgver}"
    
      21    # Extrai o conteúdo principal
    
      22    bsdtar -xf "${srcdir}/${pkgname}-${pkgver}/data.tar.xz" -C "${srcdir}/${pkgname}-${pkgver}"
    
      23}
    
      24
    
      25package() {
    
      26    cd "${srcdir}/${pkgname}-${pkgver}"
    
      27
    
      28    # Corrige .desktop para apontar para /usr/bin/fdm
    
      29    sed -i 's|/opt/freedownloadmanager/fdm|/usr/bin/fdm|g' usr/share/applications/freedownloadmanager.desktop
    
      30    sed -i 's|/opt/freedownloadmanager/icon.png|freedownloadmanager|g' usr/share/applications/freedownloadmanager.desktop
    
      31    sed -i '/^Exec=/a StartupWMClass=fdm' usr/share/applications/freedownloadmanager.desktop
    
      32
    
      33    # Instala ícone
    
      34    install -Dm644 opt/freedownloadmanager/icon.png \
    
      35        "${pkgdir}/usr/share/icons/hicolor/256x256/apps/${pkgname}.png"
    
      36
    
      37    # Copia arquivos principais
    
      38    cp -dpr --no-preserve=ownership opt usr "${pkgdir}"
    
      39
    
      40    # Cria symlink para binário
    
      41    install -d "${pkgdir}/usr/bin"
    
      42    ln -s "/opt/freedownloadmanager/fdm" "${pkgdir}/usr/bin/fdm"
    
      43}
    
      44

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