CVE-2020-36519

Mimecast Email Security before 2020-01-10 allows any admin to spoof any domain, and pass DMARC alignment via SPF. This occurs through misuse of the address rewrite feature. The domain being spoofed must be a customer in the Mimecast grid from which the spoofing occurs...

CVE-2019-19702

The modoboa-dmarc plugin 1.1.0 for Modoboa is vulnerable to an XML External Entity Injection XXE attack when processing XML data. A remote attacker could exploit this to perform a denial of service against the DMARC reporting functionality, such as by referencing the /dev/random file within XML...

DMARC for PCI DSS 4.0: A Good Practice for Securing Emails

PCI DSS 4.0 encourages the implementation of anti-phishing controls like DMARC! This highlights and reinforces the importance of preventative measures against email fraud, domain spoofing, and phishing in the financial space. While not a mandate or a requirement for PCI DSS compliance, DMARC and...

PCI DSS 4.0 Mandates DMARC By 31st March 2025

The payment card industry has set a critical deadline for businesses handling cardholder data or processing payments- by March 31, 2025, DMARC implementation will be mandatory! This requirement highlights the importance of preventative measures against email fraud, domain spoofing, and phishing i...

99% of UAE’s .ae Domains Exposed to Phishing and Spoofing

Only 1.11% of UAE's 37,926 .ae domains have implemented DMARC, leaving most vulnerable to phishing and and spoofing attacks...

[SECURITY] Fedora 40 Update: opendmarc-1.4.2-21.fc40

OpenDMARC Domain-based Message Authentication, Reporting & Conformance provides an open source library that implements the DMARC verification service plus a milter-based filter application that can plug in to any milter-aware MTA, including sendmail, Postfix, or any other MTA that supports the...

[SECURITY] Fedora 41 Update: opendmarc-1.4.2-21.fc41

OpenDMARC Domain-based Message Authentication, Reporting & Conformance provides an open source library that implements the DMARC verification service plus a milter-based filter application that can plug in to any milter-aware MTA, including sendmail, Postfix, or any other MTA that supports the...

Multiple SMTP services are susceptible to spoofing attacks due to insufficient enforcement

Overview Multiple hosted, outbound SMTP servers are vulnerable to email impersonation. This allows authenticated users and certain trusted networks to send emails containing spoofed sender information. Two vulnerabilities were identified that reduce the authentication and verification of the...

NSA, FBI Alert on N. Korean Hackers Spoofing Emails from Trusted Sources

The U.S. government on Thursday published a new cybersecurity advisory warning of North Korean threat actors' attempts to send emails in a manner that makes them appear like they are from legitimate and trusted parties. The joint bulletin was published by the National Security Agency NSA, the...

Microsoft Warns: North Korean Hackers Turn to AI-Fueled Cyber Espionage

Microsoft has revealed that North Korea-linked state-sponsored cyber actors have begun to use artificial intelligence AI to make its operations more effective and efficient. "They are learning to use tools powered by AI large language models LLM to make their operations more efficient and...

DEBIAN-CVE-2024-25768

OpenDMARC 1.4.2 contains a null pointer dereference vulnerability in /OpenDMARC/libopendmarc/opendmarcpolicy.c...

8,000+ Domains of Trusted Brands Hijacked for Massive Spam Operation

More than 8,000 domains and 13,000 subdomains belonging to legitimate brands and institutions have been hijacked as part of a sophisticated distribution architecture for spam proliferation and click monetization. Guardio Labs is tracking the coordinated malicious activity, which has been ongoing...

CVE-2024-25768

OpenDMARC 1.4.2 contains a null pointer dereference vulnerability in /OpenDMARC/libopendmarc/opendmarcpolicy.c...

Exploit for Improper Input Validation in Microsoft

CVE-2024-21413 - POC Usage: python CVE-2024-21413.py -...

Exploit for Exposure of Sensitive Information to an Unauthorized Actor in Microsoft

CVE-2023-35636 Microsoft Outlook Information Disclosure Vulner...

Explained: SMTP smuggling

SMTP smuggling is a technique that allows an attacker to send an email from pretty much any address they like. The intended goal is email spoofing—sending emails with false sender addresses. Email spoofing allows criminals to make malicious emails more believable. Let’s take a closer look at what...

SMTP Smuggling: New Flaw Lets Attackers Bypass Security and Spoof Emails

A new exploitation technique called Simple Mail Transfer Protocol SMTP smuggling can be weaponized by threat actors to send spoofed emails with fake sender addresses while bypassing security measures. "Threat actors could abuse vulnerable SMTP servers worldwide to send malicious emails from...

Exploit for Insufficient Verification of Data Authenticity in Postfix

CVE-2023-51764 Postfix SMTP Smuggling - Expect Script POC sen...

Spoofy - Program That Checks If A List Of Domains Can Be Spoofed Based On SPF And DMARC Records

Spoofy is a program that checks if a list of domains can be spoofed based on SPF and DMARC records. You may be asking, "Why do we need another tool that can check if a domain can be spoofed?" Well, Spoofy is different and here is why: 1. Authoritative lookups on all lookups with known fallback...

Mozilla: Potential Spoofing Risk through Firefox Private Relay Service

A potential spoofing risk was identified in the Firefox Private Relay service. Adversaries were able to send spoofing emails to users by leveraging the service. The design of the service allowed these spoofing emails to bypass security measures and reach the target inbox. This was due to the...