: Access any S3 buckets, RDS databases, or DynamoDB tables permitted by the keys.
: 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)
In the payload string provided, the sequence ..-2F..-2F..-2F..-2F uses a hyphenated variation or system-specific interpretation of URL encoding ( -2F instead of %2F ). This technique targets parsers that incorrectly decode alternative separators, allowing the traversal sequence to pass through standard text filters undetected before being interpreted by the underlying operating system file extractor. The Target: Inside the .aws/credentials File -template-..-2F..-2F..-2F..-2Froot-2F.aws-2Fcredentials
[Vulnerable App] ──(Traversal Exploit)──> Exfiltrates [.aws/credentials] │ ▼ [Attacker Machine] <──(Injects Stolen Keys)─── [AWS Cloud API] │ ┌───────────────────┬──────────────────────┴─────────────────────┐ ▼ ▼ ▼ [Data Exfiltration] [Resource Hijacking] [Lateral Movement] (S3 Buckets, RDS) (Crypto-mining, Ransomware) (Privilege Escalation)
Deploy Web Application Firewalls (WAF) capable of inspecting incoming HTTP traffic for signature patterns containing sequence anomalies like ..-2F or references to sensitive configuration directories ( .aws , .env , etc/passwd ). Additionally, configure Amazon GuardDuty to alert your security team immediately if AWS access keys are utilized from unusual IP addresses outside your known corporate infrastructure. : Access any S3 buckets, RDS databases, or
As a security professional, you do not need to "use" this payload; you need to it.
The string "-template-..-2F..-2F..-2F..-2Froot-2F.aws-2Fcredentials" appears to be a URL-encoded or obfuscated file path that, when decoded, corresponds to a sequence of directory traversals leading to the AWS credentials file in a user's home directory. This essay explains its structure, the security implications of directory traversal and exposed credential files, common contexts where such strings appear, and recommended mitigations. The Mechanism: Local File Inclusion (LFI) In the
If the web application runs with root privileges (a dangerous but common misconfiguration), its home directory is /root/ . The .aws/credentials file located there contains plaintext secrets: