unauthorized-access-common-services

https://raw.githubusercontent.com/yaklang/hack-skills/main/skills/unauthorized-access-common-services/SKILL.md

github.com/yaklang/hack-skills

Scanned Thu, 28 May 2026 17:27:49 GMT

Scan ID crawl-u4x6y4xlvejqopeywe1w6trn · 3ms

SCORE 75 / 100

Verdict: Safe to install

2 high-severity findings.

This skill reads protected filesystem locations plus 4 other issues listed below.

0 critical2 high3 medium7 rules passed

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.

Findings · ordered by severity

high

Sensitive filesystem path referenced

The skill references a path (`\/etc\/passwd`) that contains credentials or system secrets. Reading this from an unsandboxed skill is a credential-exfiltration vector.

rule: filesystem-overreachline: 349CWE-552

▾

347 alias /var/www/static/;

348}

349# Access: /static../etc/passwd → resolves to /var/www/etc/passwd← sensitive path — credential-exfiltration vector

350# The missing trailing slash on location causes path traversal

351

high

Sensitive filesystem path referenced

The skill references a path (`\/etc\/passwd`) that contains credentials or system secrets. Reading this from an unsandboxed skill is a credential-exfiltration vector.

rule: filesystem-overreachline: 381CWE-552

▾

379# If user input reaches Caddy template rendering:

380{{.Req.Host}} → Information disclosure

381{{readFile "/etc/passwd"}} → Local file read via Go template← sensitive path — credential-exfiltration vector

382# This is essentially a Go template injection through proxy config

383```

med

Arbitrary subprocess execution detected

The skill spawns subprocesses. Without a capability manifest declaring this, the skill could execute arbitrary commands.

rule: subprocess-executionline: 299CWE-78

▾

297javaFactory: org.apache.naming.factory.BeanFactory

298forceString: x=eval

299x: Runtime.getRuntime().exec("id")← spawns a subprocess outside declared capabilities

300```

301

med

Arbitrary subprocess execution detected

The skill spawns subprocesses. Without a capability manifest declaring this, the skill could execute arbitrary commands.

rule: subprocess-executionline: 307CWE-78

▾

305

306```sql

307CREATE ALIAS EXEC AS 'String shellexec(String cmd) throws java.io.IOException { Runtime.getRuntime().exec(cmd); return "ok"; }';← spawns a subprocess outside declared capabilities

308CALL EXEC('id');

309```

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

▾

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skillox.io/r/crawl-u4x6y4xlvejqopeywe1w6trn