securelink

MEDIUM

maintainer lingdianshiren 0 votes scanned 2026-09-17 00:27:14.276658

View on AUR

Why flagged

This package installs a prebuilt proprietary binary (a .deb) from a non-standard Wangsu CDN host (download-sdwan.wangsu.com) that is plausibly the vendor's own infrastructure, but the software is a closed-source Zero Trust/VPN client with privileged binaries (setuid chrome-sandbox, root-level daemon SecureLink_Client -install) that cannot be audited; the checksum is present so the specific artifact is pinned, but the host is not an official well-known release domain and the package has few votes, making supply-chain substitution a realistic concern.

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 source=("https://download-sdwan.wangsu.com/public/securelink/pkg/formal/COMMON/ubuntuX64/SecureLink-ubuntu-x64-${pkgver}-66.deb")

Medium AI review llm_review

An AI model (anthropic/claude-4.6-sonnet-20260217) reviewed this and agrees it is MEDIUM (confidence 70%): This package installs a prebuilt proprietary binary (a .deb) from a non-standard Wangsu CDN host (download-sdwan.wangsu.com) that is plausibly the vendor's own infrastructure, but the software is a closed-source Zero Trust/VPN client with privileged binaries (setuid chrome-sandbox, root-level daemon SecureLink_Client -install) that cannot be audited; the checksum is present so the specific artifact is pinned, but the host is not an official well-known release domain and the package has few votes, making supply-chain substitution a realistic concern.

PKGBUILD

1 offending line(s) highlighted

      1# Maintainer: lingdianshiren <ldsrwu@foxmail.com>
    
      2pkgname=securelink
    
      3pkgver=3.8.13
    
      4pkgrel=1
    
      5pkgdesc="SecureLink client for Wangsu SDP / Zero Trust secure access (Ubuntu GUI version)"
    
      6arch=('x86_64')
    
      7url="https://www.wangsu.com/app/securelink"
    
      8license=('custom')
    
      9depends=('libnotify' 'libxtst' 'nss' 'dmidecode' 'mesa' 'libappindicator-gtk3')
    
      10options=('!strip')
    
      11install=securelink.install
    
      12source=("https://download-sdwan.wangsu.com/public/securelink/pkg/formal/COMMON/ubuntuX64/SecureLink-ubuntu-x64-${pkgver}-66.deb")
    
      13sha256sums=('5304f18254f6c46fb4e66cf61ed65b73d882d9b5530e4556016051e4df3959b8')
    
      14
    
      15package() {
    
      16    cd "$srcdir"
    
      17
    
      18    # Extract the Debian package
    
      19    ar x "SecureLink-ubuntu-x64-${pkgver}-66.deb"
    
      20
    
      21    # Install payload into the package root
    
      22    bsdtar -xf data.tar.xz -C "$pkgdir"
    
      23
    
      24    # The .deb ships some internal ELF executables without the executable bit,
    
      25    # which causes SecureLink to report error 3313 ("SecureLink_Client blocked
    
      26    # by security software") because the Electron shell cannot spawn them.
    
      27    chmod 755 "$pkgdir/opt/SecureLink/resources/app.asar.unpacked/assets/app-ext/securelink_linux64/bin/SecureLink_Client"
    
      28    chmod 755 "$pkgdir/opt/SecureLink/resources/app.asar.unpacked/assets/app-ext/securelink_linux64/bin/uninstall"
    
      29    chmod 755 "$pkgdir/opt/SecureLink/resources/app.asar.unpacked/assets/app-ext/securelink_linux64/plugin/bin/SecureLink_Agent"
    
      30    chmod 755 "$pkgdir/opt/SecureLink/resources/app.asar.unpacked/assets/app-ext/securelink_linux64/plugin/bin/SecureLink_Core"
    
      31    chmod 755 "$pkgdir/opt/SecureLink/resources/app.asar.unpacked/assets/app-ext/securelink_linux64/plugin/bin/SecureLink_DP"
    
      32    chmod 755 "$pkgdir/opt/SecureLink/resources/app.asar.unpacked/assets/app-ext/securelink_linux64/plugin/bin/SecureLink_Report_Tool"
    
      33    chmod 755 "$pkgdir/opt/SecureLink/resources/app.asar.unpacked/assets/app-ext/securelink_linux64/plugin/bin/hwinfo"
    
      34
    
      35    # Electron's setuid sandbox helper must be owned by root and have the
    
      36    # setuid bit set; otherwise the renderer/GPU sandbox cannot be created.
    
      37    chmod 4755 "$pkgdir/opt/SecureLink/chrome-sandbox"
    
      38
    
      39    # Record the original package name so the install script can feed it to
    
      40    # SecureLink_Client -install without hard-coding the version.
    
      41    install -Dm644 /dev/stdin "$pkgdir/opt/SecureLink/.pkgmeta" <<EOF
    
      42DEB_NAME=SecureLink-ubuntu-x64-${pkgver}-66.deb
    
      43EOF
    
      44
    
      45    # The upstream service file contains shell-style quoting and redirection
    
      46    # that systemd does not parse correctly, so install a corrected version.
    
      47    install -Dm644 /dev/stdin "$pkgdir/usr/lib/systemd/system/securelink.service" <<'EOF'
    
      48[Unit]
    
      49Description=SecureLink Daemon
    
      50After=network.target
    
      51
    
      52[Service]
    
      53Type=simple
    
      54Restart=on-failure
    
      55ExecStart=/opt/SecureLink/resources/app.asar.unpacked/assets/app-ext/securelink_linux64/bin/SecureLink_Client -d
    
      56ExecStop=/bin/kill -HUP $MAINPID
    
      57KillMode=process
    
      58
    
      59[Install]
    
      60WantedBy=multi-user.target
    
      61EOF
    
      62
    
      63    # Create a convenience symlink in /usr/bin
    
      64    install -dm755 "$pkgdir/usr/bin"
    
      65    ln -s /opt/SecureLink/securelink "$pkgdir/usr/bin/securelink"
    
      66}
    
      67

Scan history

Scanned at (UTC)	Severity	Rules
2026-09-17 00:27:14	Medium	2
2026-09-16 00:03:17	Medium	2
2026-09-15 00:25:31	Medium	2
2026-09-14 00:27:57	Medium	2
2026-09-13 00:19:54	Medium	2
2026-09-12 00:25:17	Medium	2
2026-09-11 00:19:22	Medium	2
2026-09-10 00:22:44	Medium	2
2026-09-09 00:04:09	Medium	2
2026-09-08 00:18:08	Medium	2
2026-09-07 00:30:15	Medium	2
2026-09-06 00:17:06	Medium	2
2026-09-05 00:16:27	Medium	2
2026-09-04 00:03:13	Medium	2
2026-09-03 00:15:47	Medium	2
2026-09-02 00:02:31	Medium	2
2026-09-01 00:11:19	Medium	2
2026-08-31 00:19:57	Medium	2
2026-08-30 00:04:14	Medium	2
2026-08-29 00:29:17	Medium	2