procertum-diagnostic

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

MEDIUM

Why flagged The PKGBUILD downloads a prebuilt binary installer (.bin) from files.certum.eu, which is the official Certum/Asseco vendor file distribution host (Certum is a Polish CA/PKI vendor). The binary is executed via `sh ... --noexec --keep` to extract its payload, and the extracted contents are then installed. This is a legitimate vendor pattern for self-extracting installers, and files.certum.eu is the official Certum software distribution domain matching the package's stated purpose. However, the integrity check uses only MD5 (weak, collision-prone) rather than SHA-256 or a cryptographic signature, and the source is a prebuilt binary blob from a vendor host rather than source code — meaning any compromise or substitution at the host level would result in arbitrary code execution on the user's system. This is a genuine medium-severity supply-chain concern (executed binary from a non-PyPI/non-GitHub official host with only MD5 verification), not a false positive, but also not evidence of active malice.

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:12 "https://files.certum.eu/software/proCertumDiagnostic/Linux-Ubuntu/${pkgver}/proCertumDiagnostic-${pkgver}-${CARCH}-ubuntu.bin"

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 installer (.bin) from files.certum.eu, which is the official Certum/Asseco vendor file distribution host (Certum is a Polish CA/PKI vendor). The binary is executed via `sh ... --noexec --keep` to extract its payload, and the extracted contents are then installed. This is a legitimate vendor pattern for self-extracting installers, and files.certum.eu is the official Certum software distribution domain matching the package's stated purpose. However, the integrity check uses only MD5 (weak, collision-prone) rather than SHA-256 or a cryptographic signature, and the source is a prebuilt binary blob from a vendor host rather than source code — meaning any compromise or substitution at the host level would result in arbitrary code execution on the user's system. This is a genuine medium-severity supply-chain concern (executed binary from a non-PyPI/non-GitHub official host with only MD5 verification), not a false positive, but also not evidence of active malice.

PKGBUILD

1 offending line(s) highlighted

      1# Maintainer: Carl Kittelberger <icedream@icedream.pw>
    
      2pkgname=procertum-diagnostic
    
      3pkgver=1.3.10
    
      4pkgrel=1
    
      5epoch=
    
      6pkgdesc="Diagnostic tool for proCertum cards."
    
      7arch=(x86_64)
    
      8url="https://www.support.certum.eu/en/cert-offer-card-manager/"
    
      9license=(unknown)
    
      10provides=()
    
      11source=(
    
      12	"https://files.certum.eu/software/proCertumDiagnostic/Linux-Ubuntu/${pkgver}/proCertumDiagnostic-${pkgver}-${CARCH}-ubuntu.bin"
    
      13)
    
      14md5sums=('718562fe782059775344d046ac0f9f1b')
    
      15
    
      16prepare() {
    
      17	sh "./proCertumDiagnostic-${pkgver}-${CARCH}-ubuntu.bin" --noexec --keep --nox11 --nochown --target "${srcdir}/${pkgname}-${pkgver}"
    
      18}
    
      19
    
      20package() {
    
      21	cd "${srcdir}/${pkgname}-${pkgver}"
    
      22
    
      23	#./zz_install
    
      24
    
      25	INSTALL_DIR="$pkgdir/opt/proCertumDiagnostic"
    
      26
    
      27	USER_DESKTOP_FILE=proCertumDiagnostic.desktop
    
      28
    
      29	mkdir -p "$INSTALL_DIR"
    
      30	cp -R -a * "$INSTALL_DIR"
    
      31	chown -R root:root "$INSTALL_DIR"
    
      32	chmod 755 "$INSTALL_DIR"
    
      33
    
      34	# remove installer scripts
    
      35	rm "$INSTALL_DIR"/zz_* "$INSTALL_DIR"/proCertumDiagnostic_uninstall
    
      36
    
      37	# install link to binary
    
      38	mkdir -p "$pkgdir/usr/bin"
    
      39	ln -rs "$pkgdir/opt/proCertumdiagnostic/proCertumDiagnostic" "$pkgdir/usr/bin/"
    
      40
    
      41	# install desktop file
    
      42	mkdir -p "$pkgdir/usr/share/applications"
    
      43	cp -R -a "$USER_DESKTOP_FILE" "$pkgdir/usr/share/applications/"
    
      44
    
      45	# install license
    
      46	install -Dm644 -t "$pkgdir/usr/share/licenses/$pkgname" "$INSTALL_DIR"/licenses/*
    
      47}
    
      48

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