splashtop-business

maintainer lauradestrigter · 6 votes · scanned 2026-08-03 00:08:14.047287

MEDIUM

Why flagged The PKGBUILD downloads a prebuilt binary tarball (containing a Debian .deb package with compiled executables) directly from download.splashtop.com, which is the official Splashtop vendor download host. This is a legitimate vendor distribution channel, not a personal or unofficial host, so the risk is lower than a random third-party mirror. However, the package still installs prebuilt proprietary binaries that cannot be audited, and there is no GPG signature verification — only a sha256sum. If the vendor host were compromised or the checksum were to drift, arbitrary code would execute. This is a standard medium-risk pattern for proprietary software distributed as prebuilt binaries from a vendor CDN in the AUR: not clearly malicious, but a genuine supply-chain concern due to the inability to verify the binary's integrity beyond a hash and the lack of source-build reproducibility.

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:16 source=("https://download.splashtop.com/linuxclient/${pkgname}_Ubuntu_v${pkgver}_amd64.tar.gz")

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 binary tarball (containing a Debian .deb package with compiled executables) directly from download.splashtop.com, which is the official Splashtop vendor download host. This is a legitimate vendor distribution channel, not a personal or unofficial host, so the risk is lower than a random third-party mirror. However, the package still installs prebuilt proprietary binaries that cannot be audited, and there is no GPG signature verification — only a sha256sum. If the vendor host were compromised or the checksum were to drift, arbitrary code would execute. This is a standard medium-risk pattern for proprietary software distributed as prebuilt binaries from a vendor CDN in the AUR: not clearly malicious, but a genuine supply-chain concern due to the inability to verify the binary's integrity beyond a hash and the lack of source-build reproducibility.

PKGBUILD

1 offending line(s) highlighted

      1# Maintainer: Andrew Simmons <agsimmons0 at gmail dot com>
    
      2# Contributor:: Tab Fitts <tfitts [at] spryservers [dot] net>
    
      3
    
      4pkgname=splashtop-business
    
      5pkgver=3.8.0.0
    
      6pkgrel=1
    
      7pkgdesc="Splashtop Business. Remotely access your desktop from any device from anywhere!"
    
      8arch=('x86_64')
    
      9url="https://www.splashtop.com/business"
    
      10license=('LicenseRef-Proprietary')
    
      11depends=('gcc-libs' 'glibc' 'keyutils' 'libcap' 'libpulse' 'libxcb' 'qt5-base' 'util-linux-libs' 'xcb-util-keysyms' 'xcb-util' 'xdotool' 'zlib')
    
      12optdepends=('bash-completion: Bash completion support')
    
      13provides=('splashtop-business')
    
      14options=('!strip')
    
      15install=${pkgname}.install
    
      16source=("https://download.splashtop.com/linuxclient/${pkgname}_Ubuntu_v${pkgver}_amd64.tar.gz")
    
      17sha256sums=('128f9b7fe6ab15e2089339f76f325abaa97ac3657fa71d09b1fe4e87daf8430e')
    
      18
    
      19prepare(){
    
      20    ar x splashtop-business_Ubuntu_amd64.deb
    
      21}
    
      22
    
      23package(){
    
      24	# Extract package data
    
      25	tar xf data.tar.xz -C "${pkgdir}"
    
      26
    
      27    # Disable SRUsb.service until it's clear what it's purpose is
    
      28    # Move unit file to correct location
    
      29    # mkdir -p "$pkgdir/usr/lib/systemd/system/"
    
      30    # mv "$pkgdir/etc/systemd/system/SRUsb.service" "$pkgdir/usr/lib/systemd/system/"
    
      31    rm -r "$pkgdir/etc/"
    
      32
    
      33    mkdir -m 777 "$pkgdir/opt/splashtop-business/config"
    
      34    mkdir -m 755 "$pkgdir/opt/splashtop-business/dump"
    
      35    mkdir -m 777 "$pkgdir/opt/splashtop-business/log"
    
      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