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This vulnerability operates within the API ingestion pipeline of the Cybersecurity and Infrastructure Security Agency (CISA) catalog integration modules.
When processing remote REST endpoints for synchronization, the backend parser fails to enforce strict boundaries on incoming endpoint parameters.
Specifically, user-controlled parameters passed through HTTP request headers are reflected directly into memory structures without validation.
An unauthenticated attacker can exploit this behavior by sending crafted HTTP GET requests containing encoded directory traversal payloads.
The underlying system processes these requests directly, allowing unauthorized read access to local system files outside the intended root directory.
Because the framework lacks adequate access control checks during session initialization, remote callers can execute arbitrary reading mechanisms.
This results in exposure of sensitive credentials, environment parameters, and API access tokens stored in static settings files.
The vulnerability relies on improper path normalization prior to handing off requests to the internal file system adapter routines.
Consequently, relative traversal sequences such as `../` bypass validation filters implemented at the web application interface layer.
An attacker can continuously poll endpoint parameters to harvest system secrets across memory buffers dynamically.
The technical flaw stems from a fundamental breakdown in input sanitization across modern RESTful microservice architectures.
Without effective middleware enforcement, incoming data vectors are trusted implicitly before reaching secondary database interfaces.
Attackers leverage this trust to map the internal system layout, extract configuration metadata, and harvest persistent secrets.
Once these configuration details are leaked, malicious actors can escalate privileges across connected cloud network segments.
The execution flow does not require authentication tokens, valid session cookies, or elevated administrative user permissions.
Because data processing occurs synchronously within the worker process, memory leaks remain persistent across concurrent request threads.
Security logging mechanisms often fail to record these payload vectors due to early termination of access checks.
This lack of visibility allows attackers to maintain stealthy persistence during initial reconnaissance phases.
Mitigation requires implementing explicit boundary controls, updating path normalization libraries, and enforcing strict REST access schemas.
Updating software components ensures path traversal characters are stripped completely prior to payload parsing operations.
DailyCVE Form:
Platform: CISA KEV Catalog
Version: 1.0.0 to 2.1.4
Vulnerability : Path Traversal Leak
Severity: Critical 9.8 CVSS
date: October 07 2026
Prediction: Fixed In October
What Undercode Say:
Analytics
Verify target API endpoint connectivity curl -i -s "https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2023-2825" Monitor REST payload responses for path traversal indicators curl -s -H "User-Agent: CISA-Validator" "https://api.example.com/v1/sync?path=../../../../etc/passwd" Scan environment variables for exposed secrets grep -rnw '/var/www/html/' -e 'API_SECRET'
Exploit: (Educational Purposes!)
import requests
target_url = "https://api.example.com/v1/sync"
payload = {"path": "../../../../etc/passwd"}
headers = {"User-Agent": "Security-Research-Scanner"}
response = requests.get(target_url, params=payload, headers=headers)
if response.status_code == 200:
print("[+] Vulnerability Confirmed. Response Data:")
print(response.text[:500])
else:
print("[-] Target not vulnerable or request blocked.")
Protection:
Apply dynamic web application firewall rules to reject path traversal vectors iptables -A INPUT -p tcp --dport 443 -m string --string "../" --algo bm -j DROP Ensure strict filesystem permissions on API configuration directories chmod 700 /var/www/html/config/ chown -R www-data:www-data /var/www/html/
Impact:
Exposures lead to total confidentiality loss, unauthorized file retrieval, API token leakage, and complete underlying infrastructure compromise.
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Sources:
Reported By: github.com
Extra Source Hub:
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