(01) - CybersecurityDMSA-2025-PY-001

Email Authentication Vulnerability in Ministry of Women of Paraguay

A flaw in the Ministry of Women's email servers allows attackers to send fraudulent emails appearing to come from official government accounts.

21 August 20252 min readCybersecurityReports

Executive Summary

Dymo's email security monitoring detected an email authentication vulnerability in the Ministry of Women of Paraguay. This flaw allows malicious actors to send emails that appear to originate from official ministry addresses, facilitating phishing and fraud campaigns.

Affected Organization

  • Name: Ministerio de la Mujer de Paraguay
  • Domain: Official government email infrastructure
  • Role: Women's rights and gender equality advocacy
  • Target Audience: Women, families, NGOs, government partners

Vulnerability Details

Type

Email Spoofing / Authentication Bypass

Severity

Medium-High (CVSS 7.5)

Technical Findings

The vulnerability exists due to:

  1. Missing DMARC Records: No policy to prevent domain spoofing
  2. Permissive SPF: Allows sending from multiple IP addresses
  3. No DKIM Signing: Emails not cryptographically signed
  4. Lack of Authentication Monitoring: No detection of unauthorized sending

Active Exploitation

Observed attack patterns include:

  • Emails impersonating the Minister
  • Fake program enrollment notifications
  • Fraudulent donation requests
  • Phishing links disguised as official forms

Impact on Victims

Target populations include:

  • Women seeking services: High vulnerability to fake program offers
  • NGO partners: Potential business email compromise
  • Government employees: Credential harvesting attempts
  • Donors and supporters: Financial fraud schemes

Responsible Disclosure

Reported to:

  • Ministry of Women's IT Department
  • Paraguay Computer Emergency Response Team
  • National Secretariat for Information Technology

Mitigation Steps

  1. Immediate: Deploy DMARC policy with reject
  2. Short-term: Implement DKIM signing for all outgoing mail
  3. Ongoing: Monitor for domain impersonation
  4. Awareness: Train staff on phishing identification

This vulnerability was identified through Dymo's automated email security assessment.