Cisco Email Security Appliance URL Filtering Bypass Vulnerability

A vulnerability in the antispam protection mechanisms of Cisco AsyncOS Software for Cisco Email Security Appliance ESA could allow an unauthenticated, remote attacker to bypass the URL reputation filters on an affected device. The vulnerability is due to insufficient input validation of URLs. An...

Trump, Biden Campaign Staffers Targeted By APT Phishing Emails

With the U.S. presidential election months away, advanced persistent threat APT groups are targeting the campaign staffers of both Donald Trump and Joe Biden in recent phishing attacks. On Thursday, Shane Huntley with Google’s Threat Analysis Group said on Twitter that two separate phishing...

Understanding the Payload-Less Email Attacks Evading Your Security Team

The traditional image of a successful email attack is that of a naive employee clicking the link in a crudely crafted spam email bent on phishing. But times have changed, and employees are much more security-educated than they used to be. So, today’s threat actors are creating increasingly...

How to Avoid Spam—Using Disposable Contact Information

The next time you sign up for a coupon code or retail promotion, use these apps to avoid spam text and email messages...

keycloak: improper verification of certificate with host mismatch could result in information disclosure

A flaw was found in Keycloak, where it does not perform the TLS hostname verification while sending emails using the SMTP server. This flaw allows an attacker to perform a man-in-the-middle MITM attack...

Cybersecurity Needs to Go Back to the Basics

This is part of our ongoing conversation about the worldwide challenges of working remotely. To stay up-to-date on the latest insights, refer to our live page for COVID-19: Cybersecurity Community Resources. This piece was co-authored with support from Optiv. Security teams have spent decades...

CVE-2020-12272

OpenDMARC, versions up to 1.3.2 and 1.4.x, is affected by CVE-2020-12272. The flaw arises from incorrect parsing/interpretation of SPF/DKIM authentication results, enabling attacks that inject authentication results to provide false information about the domain that originated an email. This can ...

Unspecified Vulnerability in KDE KMail (CNVD-2021-31481)

KDE KMail is an e-mail component of Kontact personal information management suite from the KDE community. A security vulnerability exists in KDE KMail versions prior to 19.12.3. An attacker could use this vulnerability to cause KMail to append a local file to a written email message without...

CVE-2020-11880

CVE-2020-11880 affects KDE KMail prior to 19.12.3. A non-RFC6068 mailto?attach=… parameter lets a website or mailto link cause KMail to attach local files to a composed message without warning (demonstrated by attach=.bash_history). The vulnerability arises from how KMail handles the proprietary ...

5 reasons to move your endpoint security to the cloud now

As the world has adopts work from home initiatives, we’ve seen many organizations accelerate their plans to move from on-premises endpoint security and Detection and Response EDR/XDR solutions to Software as a Service versions. And several customers who switched to the SaaS version last year,...

Cisco Email Security Appliance URL Filtering Bypass (cisco-sa-20191120-esa-url-bypass)

According to its self-reported version, Cisco Email Security Appliance ESA is affected by a vulnerability in the antispam protection mechanisms of Cisco AsyncOS Software due to insufficient input validation of URLs. An unauthenticated, remote attacker can exploit this, by crafting the URL in a...

Cisco Email Security Appliance Uncontrolled Resource Exhaustion Vulnerability

According to its self-reported version, Cisco Email Security Appliance ESA is affected by a vulnerability. Please see the included Cisco BIDs and Cisco Security Advisory for more information. TRUSTED...

Riding another wave of success for our multi-layered detection and response approach

The corporate endpoint is a constant battle between cybersecurity white hats and criminal attackers. According to one study from the Ponemon Institute, 68% of organizations were victims of an attack on the endpoint in 2019. The risks and costs associated with undetected threats are immeasurable...

Domain Name Security: Important Measures You Need to Know

Whether you are an individual, a large commercial business, or a small non-profit organization, the creation and protection of your online presence are essential. While many individuals and businesses use social media platforms to connect with followers, customers, or organization members, a doma...

Protecting against coronavirus themed phishing attacks

The world has changed in unprecedented ways in the last several weeks due to the coronavirus pandemic. While it has brought out the best in humanity in many ways, as with any crisis it can also attract the worst in some. Cybercriminals use people’s fear and need for information in phishing attack...

The vulnerability of Cisco Email Security Appliances, related to uncontrolled resource consumption, allows attackers to trigger service failures.

The vulnerability of Cisco Email Security Appliances relates to an uncontrolled resource consumption. Exploiting this vulnerability could allow a malicious actor to trigger a service failure through a specially crafted email message...

The vulnerability of the message filtering function of Cisco AsyncOS software in Cisco Email Security Appliances and Cisco Content Security Management Appliances, as well as in Cisco Web Security Appliances, allows attackers to trigger service interruptions.

The vulnerability of the message filtering function in Cisco AsyncOS software for Cisco Email Security Appliances, Cisco Content Security Management Appliances, and Cisco Web Security Appliances is related to insufficient input validation. Exploiting this vulnerability can allow an attacker to...

What is the Best Defense Against Phishing Attacks?

Whether the subject line was “You’re account will be closed!” or the email address was [email protected], we have all received and rolled our eyes at a poorly disguised phishing attempt. While many view phishing as a small annoyance, this attack method has maintained longevity for a reason and...

What is the Best Defense Against Phishing Attacks?

Whether the subject line was “You’re account will be closed!” or the email address was [email protected], we have all received and rolled our eyes at a poorly disguised phishing attempt. While many view phishing as a small annoyance, this attack method has maintained longevity for a reason and...

What is the Cybersecurity Equivalent of Washing Your Hands for 20 Seconds?

With COVID-19's spread, there have been numerous recommendations from health authorities and experts that one of the best, first-level measures to help spread infection is to wash hands with soap and water thoroughly for 20 seconds. In recent days, we’ve frequently gotten the question: “What can ...