imjtool-bin

maintainer kleintux · 4 votes · scanned 2026-08-03 00:08:14.047287

MEDIUM

Why flagged The PKGBUILD downloads a prebuilt ELF64 binary (imjtool.ELF64) from newandroidbook.com, which is Jonathan Levin's personal/unofficial site rather than a major trusted platform like GitHub releases or a distro mirror. The binary is installed directly to /usr/bin and executed with full user privileges. While newandroidbook.com is a known site for Android reverse-engineering tools by a recognized author, it is still a personal host with no independent code-review trail, no reproducible build, and the source URL points to a mutable .tgz (no version pinning in the URL path — 'imjtool.tgz' could be silently replaced). The sha512sum provides some integrity protection against in-transit tampering but does not protect against the host owner replacing the file and updating the checksum, nor does it verify the binary's provenance. This is a classic medium-severity supply-chain concern: an executed binary from an unofficial personal host.

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 "${_pkgname}-${pkgver}.tgz::http://newandroidbook.com/tools/imjtool.tgz"

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 ELF64 binary (imjtool.ELF64) from newandroidbook.com, which is Jonathan Levin's personal/unofficial site rather than a major trusted platform like GitHub releases or a distro mirror. The binary is installed directly to /usr/bin and executed with full user privileges. While newandroidbook.com is a known site for Android reverse-engineering tools by a recognized author, it is still a personal host with no independent code-review trail, no reproducible build, and the source URL points to a mutable .tgz (no version pinning in the URL path — 'imjtool.tgz' could be silently replaced). The sha512sum provides some integrity protection against in-transit tampering but does not protect against the host owner replacing the file and updating the checksum, nor does it verify the binary's provenance. This is a classic medium-severity supply-chain concern: an executed binary from an unofficial personal host.

PKGBUILD

1 offending line(s) highlighted

      1# Maintainer: kleintux <reg-archlinux AT klein DOT tuxli DOT ch> 
    
      2_pkgname=imjtool
    
      3pkgname=${_pkgname}-bin
    
      4pkgver=2.0
    
      5pkgrel=1
    
      6pkgdesc="Rudimentary Android image and partition unpacking tool."
    
      7	arch=('x86_64')
    
      8url="http://newandroidbook.com/tools/imjtool.html"
    
      9license=('BSD')
    
      10provides=(${_pkgname})
    
      11source=(
    
      12  "${_pkgname}-${pkgver}.tgz::http://newandroidbook.com/tools/imjtool.tgz"
    
      13)
    
      14sha512sums=('1e941f26f742c9ec7491f56351bb973e1fe6c70aff78ff2814e07ef8c10dae98c9acdbfc32aa89811a97cdec96b5c004cf3fb0cb98b20e66dd88f322912d9649')
    
      15
    
      16package() {
    
      17	cd "${srcdir}"
    
      18	install -Dm755 "${_pkgname}.ELF64" "${pkgdir}/usr/bin/${_pkgname}"
    
      19	install -Dm644 "LICENSE" "${pkgdir}/usr/share/licenses/${_pkgname}/LICENSE"
    
      20}
    
      21

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