mcc

maintainer zyriu1 · 0 votes · scanned 2026-08-03 00:08:14.047287
HIGH
View on AUR ↗
Why flagged The PKGBUILD downloads and executes an unversioned shell script (install.sh) from mccteam.github.io with sha256sums=('SKIP'), meaning there is zero integrity verification. The script content can change at any time without any indication in the PKGBUILD, and whatever it does — including downloading and executing arbitrary binaries — runs during the build phase. This is a genuine RCE risk: even if the current script is benign, the lack of a pinned checksum means any future or compromised version of that script executes unconditionally. Additionally, installing a binary to /etc/mcc/ rather than a standard path is unusual but not itself malicious. The core issue is executing an unverified, remotely-hosted, mutable shell script during build(), which meets the threshold for HIGH risk.

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:10 source=("https://mccteam.github.io/install.sh")
HIGH AI review of an ambiguous pattern llm_review

The static rules found a suspicious pattern they could not resolve, so an AI model (anthropic/claude-4.6-sonnet-20260217) reviewed it and judged it HIGH (confidence 85%): The PKGBUILD downloads and executes an unversioned shell script (install.sh) from mccteam.github.io with sha256sums=('SKIP'), meaning there is zero integrity verification. The script content can change at any time without any indication in the PKGBUILD, and whatever it does — including downloading and executing arbitrary binaries — runs during the build phase. This is a genuine RCE risk: even if the current script is benign, the lack of a pinned checksum means any future or compromised version of that script executes unconditionally. Additionally, installing a binary to /etc/mcc/ rather than a standard path is unusual but not itself malicious. The core issue is executing an unverified, remotely-hosted, mutable shell script during build(), which meets the threshold for HIGH risk.

PKGBUILD

1 offending line(s) highlighted
1# Maintainer: Dawid Majewski <mdawid581 at gmail dot com>
2pkgname=mcc
3pkgver=20260415429
4pkgrel=1
5pkgdesc="Minecraft Console Client"
6install=$pkgname.install
7arch=('x86_64' 'aarch64')
8url="https://github.com/MCCTeam/Minecraft-Console-Client"
9license=('CDDL')
10source=("https://mccteam.github.io/install.sh")
11sha256sums=('SKIP')
12
13
14build() {
15 ./install.sh
16}
17
18package() {
19 install -Dm755 "$srcdir/MinecraftClient" "$pkgdir/etc/mcc/MinecraftClient"
20 install -d "$pkgdir/etc/mcc"
21 install -Dm755 "$srcdir/mcc" "$pkgdir/usr/bin/mcc"
22}

Scan history

Scanned at (UTC)SeverityRules
2026-08-03 00:08:14 HIGH 2
2026-08-02 00:16:08 HIGH 2
2026-08-01 00:11:18 HIGH 2
2026-07-31 00:14:10 HIGH 2
2026-07-30 00:17:23 HIGH 2
2026-07-29 00:25:53 HIGH 2
2026-07-28 00:07:28 HIGH 2
2026-07-27 00:24:32 HIGH 2
2026-07-26 00:07:32 HIGH 2
2026-07-25 00:13:44 HIGH 2
2026-07-24 00:02:28 HIGH 2
2026-07-23 00:14:47 HIGH 2
2026-07-22 00:29:32 HIGH 2
2026-07-21 00:24:15 HIGH 2
2026-07-20 00:19:49 HIGH 2
2026-07-19 00:17:08 HIGH 2
2026-07-18 00:14:48 HIGH 2
2026-07-17 00:06:16 HIGH 2
2026-07-16 00:05:41 HIGH 2
2026-07-15 00:09:25 HIGH 2

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