byond

maintainer bug · 9 votes · scanned 2026-08-03 00:08:14.047287

MEDIUM

Why flagged This PKGBUILD downloads a prebuilt binary archive from secure.byond.com, which is the official BYOND vendor download server. The host is legitimate and well-known in the BYOND/SS13 community. However, the package installs closed-source, prebuilt executables (DreamDaemon, DreamMaker) directly from a binary-only distribution with only an MD5 checksum (which is cryptographically weak). There is no source code to audit, no GPG signature verification, and MD5 is insufficient to protect against a targeted substitution attack. The binaries are executed at runtime as a game server engine. This is a standard pattern for proprietary binary AUR packages (like steam, discord, etc.), but the weak integrity check and binary-only nature from a vendor host does represent a real, if low-probability, supply-chain concern. Rating medium is appropriate: it's not clearly malicious, but it is an executed binary from a non-open-source host with weak integrity verification.

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=("https://secure.byond.com/games/download/build/${_pkgvermajor}/${pkgver}_byond_linux.zip")

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 archive from secure.byond.com, which is the official BYOND vendor download server. The host is legitimate and well-known in the BYOND/SS13 community. However, the package installs closed-source, prebuilt executables (DreamDaemon, DreamMaker) directly from a binary-only distribution with only an MD5 checksum (which is cryptographically weak). There is no source code to audit, no GPG signature verification, and MD5 is insufficient to protect against a targeted substitution attack. The binaries are executed at runtime as a game server engine. This is a standard pattern for proprietary binary AUR packages (like steam, discord, etc.), but the weak integrity check and binary-only nature from a vendor host does represent a real, if low-probability, supply-chain concern. Rating medium is appropriate: it's not clearly malicious, but it is an executed binary from a non-open-source host with weak integrity verification.

PKGBUILD

1 offending line(s) highlighted

      1# Contributor: Bug <bug2000@gmail.com> [Thank you the all mighty omp!]
    
      2# Maintainer: Bug <bug2000@gmail.com>
    
      3pkgname=byond
    
      4_pkgvermajor=516
    
      5_pkgverminor=1681
    
      6pkgver="$_pkgvermajor.$_pkgverminor"
    
      7pkgrel=1
    
      8pkgdesc="Game server based on the 'Byond' language [Build your own net dream]."
    
      9arch=('i686' 'x86_64')
    
      10url="https://www.byond.com/"
    
      11license=('unknown')
    
      12depends=('libpng' 'ncurses' 'gcc-libs')
    
      13source=("https://secure.byond.com/games/download/build/${_pkgvermajor}/${pkgver}_byond_linux.zip")
    
      14md5sums=('514d60dc4a7730bdb1c232d0b33eec43')
    
      15build() {
    
      16    cd "${srcdir}/${pkgname}"
    
      17    chmod 644 man/man6/DreamDaemon.6
    
      18    chmod 644 man/man6/DreamMaker.6
    
      19
    
      20    sed -i \
    
      21        -e "/^BYOND_SYSTEM/s|=.*|= ${pkgdir}/usr/share/byond|" \
    
      22        -e "/^BIN_DIR/s|=.*|= ${pkgdir}/usr/bin|" \
    
      23        -e "/^LIB_DIR/s|=.*|= ${pkgdir}/usr/lib|" \
    
      24        -e "/^MAN_DIR/s|=.*|= ${pkgdir}/usr/share/man|" \
    
      25        -e "/ln -f -s/s|\$(BYOND_SYSTEM)|/usr/share/byond|" \
    
      26        -e "s/libzip/libext/g" \
    
      27        -e "/libpng/d" \
    
      28        -e "/ldconfig/d" \
    
      29    Makefile
    
      30    make
    
      31}
    
      32
    
      33package(){
    
      34    cd "${srcdir}/${pkgname}"
    
      35    mkdir -p "${pkgdir}/usr/"{bin,lib,share/byond,share/man/man6}
    
      36    make install
    
      37}
    
      38

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