mcc

HIGH
maintainer zyriu1 0 votes scanned 2026-09-17 00:27:14.276658
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
2026-09-17 00:27:14 High 2
2026-09-16 00:03:17 High 2
2026-09-15 00:25:31 High 2
2026-09-14 00:27:57 High 2
2026-09-13 00:19:54 High 2
2026-09-12 00:25:17 High 2
2026-09-11 00:19:22 High 2
2026-09-10 00:22:44 High 2
2026-09-09 00:04:09 High 2
2026-09-08 00:18:08 High 2
2026-09-07 00:30:15 High 2
2026-09-06 00:17:06 High 2
2026-09-05 00:16:27 High 2
2026-09-04 00:03:13 High 2
2026-09-03 00:15:47 High 2
2026-09-02 00:02:31 High 2
2026-09-01 00:11:19 High 2
2026-08-31 00:19:57 High 2
2026-08-30 00:04:14 High 2
2026-08-29 00:29:17 High 2

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