-template-..-2f..-2f..-2f..-2froot-2f.aws-2fcredentials: [patched]
| Encoding Type | Example | Decoded | |---------------|---------|---------| | URL encoding | ..%2F..%2F | ../../ | | Double URL encoding | ..%252F..%252F | ../../ (after two decoding passes) | | Unicode / UTF-8 | ..%c0%af..%c0%af | ../../ | | Custom replacement (dash encoding) | ..-2F..-2F | ../ (if the app replaces -2F with / ) | | Backslash (Windows) | ..\..\ | ..\..\ (for Windows servers) |
: This frequently acts as a prefix targeting specific templating engines, application routes, or file-loading parameters known to be vulnerable to file inclusion.
If basic ../ is blocked, try:
If we replace each -2F with / (and remove the leading -template- for a moment), we get: -template-..-2F..-2F..-2F..-2Froot-2F.aws-2Fcredentials
Even if the file is not world‑readable, misconfigured web servers (e.g., running as root ) or improper file permissions often leave it exposed.
: Ensure your WAF rulesets are updated to detect path traversal sequences, including complex encoding matrices like hex, double-URL, and custom string delimiters (such as -2F ). ✅ Summary of the Analysis
: This notation is commonly used in Unix-like operating systems to denote moving up one directory level. Each ../ moves the pointer one level up from the current directory. | Encoding Type | Example | Decoded |
https://example.com/download?file=report.pdf
Hardcoding sensitive credentials directly into template files or scripts is a common mistake that can have severe security implications. When credentials are hardcoded, they become exposed to unauthorized users, either intentionally or unintentionally, through various channels such as version control systems, configuration files, or simply by being embedded in code snippets. This exposure can lead to unauthorized access to cloud resources, data breaches, and a host of other security incidents.
If an attacker successfully retrieves this file, they gain the same permissions as the compromised server. This can lead to full cloud environment takeovers, data exfiltration, or unauthorized resource provisioning (like crypto-mining). Vulnerability Mechanism ✅ Summary of the Analysis : This notation
Delete backups and infrastructure, leading to severe operational disruption or ransomware demands. Technical Mechanism: How the Vulnerability Occurs
The string is a crafted file path designed to trick a web application into accessing files outside of its intended directory:
filename = ALLOWED_FILES.get(user_input) if not filename: abort(404)
Blacklisting .. or ../ is ineffective because attackers can use encoding, double slashes, or relative paths like ..././ that resolve to ../ .
: This decodes to root/.aws/credentials . It targets the exact file path where the Amazon Web Services (AWS) Command Line Interface (CLI) stores permanent access keys for the root user or administrative accounts. The Mechanism: Local File Inclusion (LFI)