R3: No DMARC record at cordacon.com

I am happy to receive your invitation, and i will try my best to keep R3 secured. As this is my first report and can be considered as low severity and some companies even considered it as N/A, but as I see in your policy its not mention as out of scope. one of your domain has no DMARC record, whi...

How to Fight Business Email Compromise (BEC) with Email Authentication?

An ever-evolving and rampant form of cybercrime that targets emails as the potential medium to conduct fraud is known as Business Email Compromise. Targeting commercial, government as well as non-profit organizations, BEC can lead to huge amounts of data loss, security breach, and compromised...

WHO COVID-19 Mobile App: DMARC and SPF records

If you are encountering this error of No DMARC Record found, this means that your domain does not have a published DMARC record. DMARC Records are published via DNS as a textTXT record. They will let receiving servers know what they should do with non-aligned email received from your domain...

Spearphishing Attack Spoofs Microsoft.com to Target 200M Office 365 Users

A spearphishing attack is spoofing Microsoft.com to target 200 million Microsoft Office 365 users in a number of key vertical markets, including financial services, healthcare, manufacturing and utility providers. Researchers at Ironscales discovered the campaign targeting several thousand...

How DMARC Can Stop Criminals Sending Fake Emails on Behalf of Your Domain

21st-century technology has allowed Cybercriminals to use sophisticated and undetectable methods for malicious activities. In 2020 alone, a survey revealed that 65% of US-based companies were vulnerable to email phishing and impersonation attacks. This calls for upgrading your organization's...

The vulnerability of the opendmarcxml() function in the domain authentication, reporting, and compliance specification opendmark allows a perpetrator to execute arbitrary code.

The vulnerability of the opendmarcxml function in the domain authentication, reporting, and compliance specifications of opendmark is related to writing beyond the buffer boundaries. Exploitation of this vulnerability could allow a malicious actor to execute arbitrary code on the target system by...

GLSA-202011-02 : OpenDMARC: Heap-based buffer overflow

The remote host is affected by the vulnerability described in GLSA-202011-02 OpenDMARC: Heap-based buffer overflow It was found that OpenDMARC did not properly handle DMARC aggregate reports. Impact : A remote attacker, by sending a specially crafted DMARC aggregate report, could possibly cause a...

OpenDMARC: Heap-based buffer overflow

Background OpenDMARC is an open source DMARC implementation. Description It was found that OpenDMARC did not properly handle DMARC aggregate reports. Impact A remote attacker, by sending a specially crafted DMARC aggregate report, could possibly cause a Denial of Service condition and depending o...

OPENSUSE-SU-2020:1752-1 Recommended update for mailman

This update for mailman to version 2.1.34 fixes the following issues: - The fix for lp1859104 can result in ValueError being thrown on attempts to subscribe to a list. This is fixed and extended to apply REFUSESECONDPENDING to unsubscription as well. lp1878458 - DMARC mitigation no longer misses ...

openSUSE Security Update : mailman (openSUSE-2020-1707)

This update for mailman to version 2.1.34 fixes the following issues : - The fix for lp1859104 can result in ValueError being thrown on attempts to subscribe to a list. This is fixed and extended to apply REFUSESECONDPENDING to unsubscription as well. lp1878458 - DMARC mitigation no longer misses...

Recommended update for mailman (moderate)

openSUSE Security Update: Recommended update for mailman Announcement ID: openSUSE-SU-2020:1752-1 Rating: moderate References: 1171363 1173369 Cross-References: CVE-2020-12108 CVE-2020-12137 CVE-2020-15011 Affected Products: openSUSE Backports SLE-15-SP2 An update that fixes three vulnerabilities...

OPENSUSE-SU-2020:1707-1 Recommended update for mailman

This update for mailman to version 2.1.34 fixes the following issues: - The fix for lp1859104 can result in ValueError being thrown on attempts to subscribe to a list. This is fixed and extended to apply REFUSESECONDPENDING to unsubscription as well. lp1878458 - DMARC mitigation no longer misses ...

Recommended update for mailman (moderate)

openSUSE Security Update: Recommended update for mailman Announcement ID: openSUSE-SU-2020:1707-1 Rating: moderate References: 1171363 1173369 Cross-References: CVE-2020-12108 CVE-2020-12137 CVE-2020-15011 Affected Products: openSUSE Leap 15.2 An update that fixes three vulnerabilities is now...

NICER Protocol Deep Dive: Internet Exposure of SMTP

Welcome to the NICER Protocol Deep Dive blog series! When we started researching what all was out on the internet way back in January, we had no idea we'd end up with a hefty, 137-page tome of a research report. The sheer length of such a thing might put off folks who might otherwise learn a thin...

Airline DMARC Policies Lag, Opening Flyers to Email Fraud

More than half of global airlines do not have DMARC policies in place, opening their customers up to email fraud attacks, a new report found. DMARC Domain-based Message Authentication, Reporting & Conformance is considered the industry standard for email authentication to prevent attackers from...

Design/Logic Flaw

OpenDMARC through 1.3.2 and 1.4.x through 1.4.0-Beta1 has improper null termination in the function opendmarcxmlparse that can result in a one-byte heap overflow in opendmarcxml when parsing a specially crafted DMARC aggregate report. This can cause remote memory corruption when a '\0' byte...

UBUNTU-CVE-2020-12460

OpenDMARC through 1.3.2 and 1.4.x through 1.4.0-Beta1 has improper null termination in the function opendmarcxmlparse that can result in a one-byte heap overflow in opendmarcxml when parsing a specially crafted DMARC aggregate report. This can cause remote memory corruption when a '\0' byte...

DMARC Adoption Spikes, Higher Ed Remains Behind

Adoption of the email security protocol DMARC has continued to tick upwards, with the number of domains deploying DMARC records surpassing 1 million in the last two years — a 2.5 times greater total than in 2018. That’s according to Valimail’s Email Fraud Landscape 2020 report, which also found...

A 'New Age' of Sophisticated Business Email Compromise is Coming

A newly discovered, sophisticated threat group that targets organizations without DMARC implemented and relies on business email compromise is heralding what researchers call “a new age” of business email compromise. The group, called Cosmic Lynx, is the first reported Russian BEC cybercriminal...

Business Email Compromise (BEC) Criminal Ring

A criminal group called Cosmic Lynx seems to be based in Russia: Dubbed Cosmic Lynx, the group has carried out more than 200 BEC campaigns since July 2019, according to researchers from the email security firm Agari, particularly targeting senior executives at large organizations and corporations...