codex-app-electron-port-bin

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

MEDIUM

Why flagged The PKGBUILD downloads a prebuilt macOS DMG (Codex.dmg) from persistent.oaistatic.com — this is OpenAI's CDN/static asset host, which is a legitimate vendor-controlled domain for OpenAI's Codex desktop app. However, the checksum for the DMG is explicitly set to SKIP with the stated intent of always tracking the 'latest' version at a fixed URL. This means any update OpenAI pushes (or any MITM/CDN compromise) would be silently accepted and installed without integrity verification. The extracted app.asar content is then installed under /opt and executed via Electron, making this executed code. The combination of: (1) no checksum on the primary executable payload, (2) the payload being a binary blob extracted from a DMG and run as an app, and (3) the unofficial repackaging nature of the AUR package constitutes a genuine supply-chain risk. The host itself (oaistatic.com) is legitimate OpenAI infrastructure, which reduces the risk somewhat compared to a random personal host, but the SKIP checksum on executed binary content is a real medium-severity concern regardless of host legitimacy.

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:22 "Codex.dmg::https://persistent.oaistatic.com/codex-app-prod/Codex.dmg"

MEDIUM Privileged / out-of-pacman install (sudoers, setuid, or self-update) privileged_install

The package grants elevated privileges or installs an update path outside pacman: a /etc/sudoers.d rule (often passwordless), a setuid/setgid binary, or a self-update script/service that can fetch and run future code with no checksum verification. The initial install may be verified, but the ongoing privilege + update surface is a real supply-chain / privilege-escalation risk.

PKGBUILD:72 install -Dm755 "${srcdir}/${pkgname}-autoupdate.sh" \

MEDIUM AI review llm_review

An AI model (anthropic/claude-4.6-sonnet-20260217) reviewed this and agrees it is MEDIUM (confidence 82%): The PKGBUILD downloads a prebuilt macOS DMG (Codex.dmg) from persistent.oaistatic.com — this is OpenAI's CDN/static asset host, which is a legitimate vendor-controlled domain for OpenAI's Codex desktop app. However, the checksum for the DMG is explicitly set to SKIP with the stated intent of always tracking the 'latest' version at a fixed URL. This means any update OpenAI pushes (or any MITM/CDN compromise) would be silently accepted and installed without integrity verification. The extracted app.asar content is then installed under /opt and executed via Electron, making this executed code. The combination of: (1) no checksum on the primary executable payload, (2) the payload being a binary blob extracted from a DMG and run as an app, and (3) the unofficial repackaging nature of the AUR package constitutes a genuine supply-chain risk. The host itself (oaistatic.com) is legitimate OpenAI infrastructure, which reduces the risk somewhat compared to a random personal host, but the SKIP checksum on executed binary content is a real medium-severity concern regardless of host legitimacy.

PKGBUILD

2 offending line(s) highlighted

      1pkgname=codex-app-electron-port-bin
    
      2pkgver=2026.03.03
    
      3pkgrel=1
    
      4pkgdesc="Unofficial Electron-port repackaging of Codex desktop app from macOS DMG"
    
      5arch=('x86_64')
    
      6url="https://github.com/Tomakin/codex-app-electron-port-bin"
    
      7license=('custom')
    
      8options=('!strip')
    
      9depends=('electron' 'bash')
    
      10makedepends=('p7zip' 'asar')
    
      11optdepends=(
    
      12  'nodejs: runtime dependency for Codex CLI and native rebuild helper'
    
      13  'pnpm: needed for native module rebuild helper'
    
      14  'base-devel: needed for native module rebuild helper'
    
      15  'python: needed for native module rebuild helper'
    
      16  'sudo: allows native rebuild helper to update files under /opt'
    
      17  'paru: optional helper for package auto-update command'
    
      18  'yay: optional helper for package auto-update command'
    
      19)
    
      20install="${pkgname}.install"
    
      21source=(
    
      22  "Codex.dmg::https://persistent.oaistatic.com/codex-app-prod/Codex.dmg"
    
      23  "${pkgname}.sh"
    
      24  "${pkgname}-rebuild-native.sh"
    
      25  "${pkgname}-autoupdate.sh"
    
      26  "${pkgname}.desktop"
    
      27  "${pkgname}.install"
    
      28  "${pkgname}.LICENSE"
    
      29)
    
      30noextract=('Codex.dmg')
    
      31# Intentionally SKIP for Codex.dmg to track the latest DMG at the fixed upstream URL.
    
      32sha256sums=(
    
      33  'SKIP'
    
      34  '08175f104f47c50df15504b7d3ed0bbf7c4f80c9451ebcdd2454c5fd1e4c4fe1'
    
      35  '4f8046f265b15c285c1a9b0b58aea18d4c25c4dc3581908334c6dadd462f3a19'
    
      36  '19f503eb576b9f74f85c5d14891c903718d82ea547958e789d79bb455a1440d3'
    
      37  'd127bf3d7be45efc29269658dacc76ec95367c3e9f5b6058a65e3377af5dad8a'
    
      38  'b5839b253081393a8c10946e6486d1a153402c131c4659a3515eb6499b16e6ba'
    
      39  '3d03f0c1bcf7a4567574f1e890ad757e94c0fbcfdad12a3bdfc2b4a20789bf57'
    
      40)
    
      41
    
      42_appdir="/opt/${pkgname}"
    
      43
    
      44prepare() {
    
      45  cd "${srcdir}"
    
      46
    
      47  rm -rf dmg_extracted app_asar
    
      48
    
      49  msg2 "Extracting DMG"
    
      50  7z x "${srcdir}/Codex.dmg" "-odmg_extracted" >/dev/null
    
      51
    
      52  local asar_path="${srcdir}/dmg_extracted/Codex Installer/Codex.app/Contents/Resources/app.asar"
    
      53  if [[ ! -f "${asar_path}" ]]; then
    
      54    echo "app.asar not found at expected path: ${asar_path}" >&2
    
      55    return 1
    
      56  fi
    
      57
    
      58  msg2 "Extracting app.asar"
    
      59  asar extract "${asar_path}" "${srcdir}/app_asar"
    
      60}
    
      61
    
      62package() {
    
      63  cd "${srcdir}"
    
      64
    
      65  install -dm755 "${pkgdir}${_appdir}"
    
      66  cp -a app_asar "${pkgdir}${_appdir}/"
    
      67
    
      68  install -Dm755 "${srcdir}/${pkgname}.sh" \
    
      69    "${pkgdir}/usr/bin/${pkgname}"
    
      70  install -Dm755 "${srcdir}/${pkgname}-rebuild-native.sh" \
    
      71    "${pkgdir}/usr/bin/${pkgname}-rebuild-native"
    
      72  install -Dm755 "${srcdir}/${pkgname}-autoupdate.sh" \
    
      73    "${pkgdir}/usr/bin/${pkgname}-autoupdate"
    
      74  install -Dm644 "${srcdir}/${pkgname}.desktop" \
    
      75    "${pkgdir}/usr/share/applications/${pkgname}.desktop"
    
      76  install -Dm644 "${srcdir}/${pkgname}.LICENSE" \
    
      77    "${pkgdir}/usr/share/licenses/${pkgname}/LICENSE"
    
      78}
    
      79

Scan history

Scanned at (UTC)	Severity	Rules
2026-08-03 00:08:14	MEDIUM	3
2026-08-02 00:16:08	MEDIUM	3
2026-08-01 00:11:18	MEDIUM	3
2026-07-31 00:14:10	MEDIUM	3
2026-07-30 00:17:23	MEDIUM	3
2026-07-29 00:25:53	MEDIUM	3
2026-07-28 00:07:28	MEDIUM	3
2026-07-27 00:24:32	MEDIUM	3
2026-07-26 00:07:32	MEDIUM	3
2026-07-25 00:13:44	MEDIUM	3
2026-07-24 00:02:28	MEDIUM	3
2026-07-23 00:14:47	MEDIUM	3
2026-07-22 00:29:32	MEDIUM	3
2026-07-21 00:24:15	MEDIUM	3
2026-07-20 00:19:49	MEDIUM	3
2026-07-19 00:17:08	MEDIUM	3
2026-07-18 00:14:48	MEDIUM	3
2026-07-17 00:06:16	MEDIUM	3
2026-07-16 00:05:41	MEDIUM	3
2026-07-15 00:09:25	MEDIUM	3