Rapid7 Releases New Industry Cyber-Exposure Report (ICER): ASX 200

Today, we are excited to release the third report in our Industry Cyber-Exposure Report ICER series, which digs into cyber-exposure among organizations in Australia’s ASX 200. This series focuses on five key areas we believe CISOs at mega-corporations actually have a shot at accomplishing, and wi...

Sifchain: Vulnerability : Email Spoofing

Hi Team Hope you are doing well. I found vulnerability. Issue: Email Spoofing I just sent a forged email to [email protected] that appears to originate from [email protected] I was able to do this because of SPF Soft Fail and I could not find DMARC record of this domain. SPF record...

Denial Of Service(DoS)

OpenDMARC is vulnerable to denial of service. An insecure null termination in the function opendmarcxmlparse can result in a one-byte heap overflow in opendmarcxml which allows an attacker to parse a specially crafted DMARC aggregate report...

Sifchain: Email Spoofing bug

Hi team, An SPF/DMARC record is a type of Domain Name Service DNS record that identifies which mail servers are permitted to send email on behalf of your domain. The purpose of an SPF/DMARC record is to prevent spammers from sending messages on the behalf of your organization. Remediation: Create...

Debian DLA-2639-1 : opendmarc security update

It was discovered that OpenDMARC, a milter implementation of DMARC, 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...

Rapid7's 2021 ICER Takeaways: Email Security Among the Fortune 500

This blog post covers key takeaways from our 2021 Industry Cyber-Exposure Report ICER: Fortune 500. Original analysis for these findings was conducted by Kwan Lin. We all know and love—or at least begrudgingly rely upon—email. It is a pillar of modern communications, but is unfortunately also...

How to Test and Improve Your Domain's Email Security?

No matter which type of business you are in, whether small, medium, or large, email has become an irrefutable tool for communicating with your employees, partners, and customers. Emails are sent and received each day in bulk by companies from various sources. In addition, organizations may also...

Rapid7 Releases New Industry Cyber-Exposure Report (ICER): FTSE 350

Today, we are excited to release the second report in our Industry Cyber-Exposure Report ICER series, which digs into cyber-exposure among organizations in the U.K.’s FTSE 350. This series focuses on five key areas we believe CISOs at mega-corporations actually have a shot at accomplishing, and...

How to Effectively Prevent Email Spoofing Attacks in 2021?

Email spoofing is a growing problem for an organization's security. Spoofing occurs when a hacker sends an email that appears to have been sent from a trusted source/domain. Email spoofing is not a new concept. Defined as "the forgery of an email address header to make the message appear as if it...

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...

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...

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...

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...