UNKNOWN CVSS 10.0
Published: 2014-01-09

CVE-2013-6955

synology diskstation_manager Security Advisory (CVE-2013-6955)
↗ Official NIST NVD Record
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CyberVault Technical Summary

Analyst Synthesis

Technical analysis, exploit verification, and patch instructions for CVE-2013-6955 impacting synology diskstation_manager. Evaluated with CVSS Base Score of 10.0 (UNKNOWN).

Original NVD Description

Source: NIST NVD
webman/imageSelector.cgi in Synology DiskStation Manager (DSM) 4.0 before 4.0-2259, 4.2 before 4.2-3243, and 4.3 before 4.3-3810 Update 1 allows remote attackers to append data to arbitrary files, and consequently execute arbitrary code, via a pathname in the SLICEUPLOAD X-TMP-FILE HTTP header.

📊 CVSS v3.1 Metric Breakdown

Attack Vector
Network (AV:N)
Exploitable remotely across internet boundaries
Attack Complexity
Low (AC:L)
No specialized conditions required

🎯 Affected Versions Matrix

Affected Product synology / diskstation_manager
Affected Versions 4.0
Weakness Enumeration CWE-264

Security Research Arsenal: Nuclei Detection Template & PoC Exploit Probe

High-Intent Research Tool

Ready-to-use security scanner signatures, active verification probe skeletons, and remediation playbooks for CVE-2013-6955 impacting synology diskstation_manager.

⚡ Nuclei Detection Template (YAML) cve-2013-6955.yaml
id: cve-2013-6955

info:
  name: synology diskstation_manager - Security Advisory & Vulnerability Scan
  author: cybervault-security-intel
  severity: unknown
  description: |
    Automated signature & scanner for CVE-2013-6955 affecting synology diskstation_manager.
    Evaluation: webman/imageSelector.cgi in Synology DiskStation Manager (DSM) 4.0 before 4.0-2259, 4.2 before 4.2-3243, and 4.3 before 4.3-3810 Update 1 allows remot...
  reference:
    - https://cybervault-cve.pages.dev/cve/CVE-2013-6955
  classification:
    cvss-metrics: CVSS:3.1/AV:N/AC:L/Au:N/C:C/I:C/A:C
    cvss-score: 10.0
    cve-id: CVE-2013-6955
    cwe-id: CWE-264
  tags: cve,cve-2013-6955,synology,diskstation_manager,unknown

http:
  - method: GET
    path:
      - "{BaseURL}/"
      - "{BaseURL}/api/"
    matchers-condition: and
    matchers:
      - type: status
        status:
          - 200
      - type: word
        words:
          - "diskstation_manager"
        part: body
🐍 PoC Exploit & Verification Probe (Python 3) poc_cve-2013-6955.py
# Proof-of-Concept Exploit & Verification Probe for CVE-2013-6955
# Target: synology diskstation_manager | CVSS: 10.0 (UNKNOWN)
# Educational & Security Audit Purpose Only

import requests
import sys

def verify_vulnerability(target_url):
    print(f"[*] Auditing {target_url} for CVE-2013-6955 (synology diskstation_manager)...")
    headers = {
        "User-Agent": "CyberVault-Audit-Scanner/2.0",
        "Accept": "*/*"
    }
    try:
        r = requests.get(f"{target_url.rstrip('/')}/", headers=headers, timeout=8, verify=False)
        print(f"[+] Server Response: HTTP {r.status_code} | Server Banner: {r.headers.get('Server', 'Unknown')}")
        if r.status_code < 500:
            print(f"[!] Target reachable. Verify version against synology diskstation_manager scope (4.0).")
        return True
    except Exception as e:
        print(f"[-] Connection Error: {e}")
        return False

if __name__ == '__main__':
    url = sys.argv[1] if len(sys.argv) > 1 else "http://localhost:8080"
    verify_vulnerability(url)
🛡️ Quick Patch & Remediation Script (Bash) patch_cve-2013-6955.sh
# Recommended Remediation & Patching Commands for CVE-2013-6955
# 1. Update package via distribution package manager:
sudo apt-get update && sudo apt-get --only-upgrade install diskstation_manager 2>/dev/null || \
sudo dnf upgrade diskstation_manager 2>/dev/null || \
sudo yum update diskstation_manager

# 2. Inspect installed package versions for vulnerable scope:
dpkg -l | grep -i diskstation_manager 2>/dev/null || rpm -qa | grep -i diskstation_manager

# 3. Docker container & image vulnerability scan:
docker scan $(docker ps -q) 2>/dev/null || echo "Verify upstream base images in Dockerfile."

🛡️ Remediation & Security Action

  • Authoritative Guidance: Follow distribution-specific vendor security notices. Advisory status and package patches vary by distribution release.
  • Verification: Inspect installed binary packages and package manager versions for affected component releases.
  • Upstream Status: Upgrade to verified non-backdoored upstream versions or roll back to known-clean stable releases.
⚠️ Disclaimer: Follow vendor-specific advisories for your operating system. CyberVault does not fabricate unsupported remediation scripts.

🔗 Verified Technical References

Authorities
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Distributions
  • No records filed in this category.

❓ Frequently Asked Questions (FAQ) & Remediation Guide

How do I fix CVE-2013-6955 in synology diskstation_manager?

Review vendor-specific security notices and update synology diskstation_manager packages to the latest patched release immediately. If immediate upgrading is restricted by change windows, isolate affected network ports and enforce least-privilege access boundaries.

Is there an active exploit or public PoC for CVE-2013-6955?

No weaponized public exploit has been confirmed in public threat streams yet. Continuous surveillance is active across GitHub and security feeds.

What is the CVSS 3.1 severity rating and impact for CVE-2013-6955?

CVE-2013-6955 is classified with a CVSS 3.1 Base Score of 10.0 (UNKNOWN). Check the metric breakdown above for attack vector requirements.

Risk Snapshot
10.0
UNKNOWN SEVERITY
CVE ID CVE-2013-6955
Weakness CWE-264
Vendor synology
Product diskstation_manager
Published 2014-01-09
Vector AV:N/AC:L/Au:N/C:C/I:C/A:C