USN-4307-1 apache2 update

As a security improvement, this update adds TLSv1.3 support to the Apache HTTP Server package in Ubuntu 18.04 LTS. TLSv1.3 is enabled by default, and in certain environments may cause compatibility issues. The SSLProtocol directive may be used to disable TLSv1.3 in these problematic environments...

Microsoft Windows SMB 3.1.1 Remote Code Execution

Exploit Title: Windows SMBv3 Client/Server Remote Code Execution Vulnerability - remote Author: nu11secur1ty Date: 2020-03-14 Vendor: https://smb.wsu.edu/ Link: https://github.com/nu11secur1ty/Windows10Exploits/tree/master/Undefined/CVE-2020-0796 CVE: CVE-2020-0796 + Credits: Ventsislav Varbanovs...

wildfly: The 'enabled-protocols' value in legacy security is not respected if OpenSSL security provider is in use

A flaw was found when an OpenSSL security provider is used with Wildfly, the 'enabled-protocols' value in the Wildfly configuration isn't honored. An attacker could target the traffic sent from Wildfly and downgrade the connection to a weaker version of TLS, potentially breaking the encryption...

wildfly: The 'enabled-protocols' value in legacy security is not respected if OpenSSL security provider is in use

A flaw was found when an OpenSSL security provider is used with Wildfly, the 'enabled-protocols' value in the Wildfly configuration isn't honored. An attacker could target the traffic sent from Wildfly and downgrade the connection to a weaker version of TLS, potentially breaking the encryption...

CVE-2020-0884

A spoofing vulnerability exists in Microsoft Visual Studio as it includes a reply URL that is not secured by SSL, aka 'Microsoft Visual Studio Spoofing Vulnerability'...

Cisco NX-OS Software Cisco Discovery Protocol Arbitrary Code Execution and DoS (cisco-sa-20200226-fxos-nxos-cdp)

According to its self-reported version, Cisco NX-OS Software is affected by a vulnerability in the Cisco Discovery Protocol feature due to insufficient validation of Cisco Discovery Protocol packet headers. An unauthenticated, adjacent attacker can exploit this, by sending a crafted Cisco Discove...

envoy: Incorrect Access Control when using SDS with Combined Validation Context

An access control bypass vulnerability was found in envoy. When the same TLS secret is used across multiple resources, the client's data, such as the subject alternative name or hash, is not validated. This flaw could lead to a possible bypass of security restrictions...

undertow: possible Denial Of Service (DOS) in Undertow HTTP server listening on HTTPS

A vulnerability was found in the Undertow HTTP server listening on HTTPS. An attacker can target the HTTPS port to carry out a Denial Of Service DOS to make the service unavailable on SSL...

Let's Encrypt Revoking 3 Million TLS Certificates Issued Incorrectly Due to a Bug

The most popular free certificate signing authority Let's Encrypt is going to revoke more than 3 million TLS certificates within the next 24 hours that may have been issued wrongfully due to a bug in its Certificate Authority software. The bug, which Let's Encrypt confirmed on February 29 and was...

Envoy Data Forgery Issue Vulnerability

Envoy is an open source distributed proxy server . A security vulnerability exists in Envoy 1.13.0 and earlier versions. An attacker can exploit this vulnerability by sending specially crafted packets over the TLS protocol to bypass security restrictions...

PT-2020-5141 · Cncf · Envoy

Name of the Vulnerable Software and Affected Versions: CNCF Envoy versions prior to 1.13.0 Description: The issue is related to insufficient authentication of data in the Envoy network software. It allows a remote attacker to bypass security restrictions by using only TLS 1.3, which could lead to...

Why Businesses Should Consider Managed Cloud-Based WAF Protection

The City of Baltimore was under cyber-attack last year, with hackers demanding $76,000 in ransom. Though the city chose not to pay the ransom, the attack still cost them nearly $18 million in damages, and then the city signed up for a $20 million cyber insurance policy. It's very evident that...

Citrix App Layering - Error while trying to import layers

While trying to import layers, App Layering console displays an error: "An unexpected exception occurred. If this problem continues, contact Technical Support and provide them with the details of this exception". Looking at the ELM Web logs, we might see the below errors: ERROR 2832HandlerHelper:...

Kr00k WiFi Vulnerability

An issue was discovered on Broadcom Wi-Fi client devices. Specifically timed and handcrafted traffic can cause internal errors related to state transitions in a WLAN device that lead to improper layer 2 Wi-Fi encryption with a consequent possibility of information disclosure over the air for a...

CVE-2020-3172

A vulnerability in the Cisco Discovery Protocol feature of Cisco FXOS Software and Cisco NX-OS Software could allow an unauthenticated, adjacent attacker to execute arbitrary code as root or cause a denial of service DoS condition on an affected device. The vulnerability exists because of...

CVE-2020-3172 Cisco FXOS and NX-OS Software Cisco Discovery Protocol Arbitrary Code Execution and Denial of Service Vulnerability

A vulnerability in the Cisco Discovery Protocol feature of Cisco FXOS Software and Cisco NX-OS Software could allow an unauthenticated, adjacent attacker to execute arbitrary code as root or cause a denial of service DoS condition on an affected device. The vulnerability exists because of...

CVE-2020-3172 Cisco FXOS and NX-OS Software Cisco Discovery Protocol Arbitrary Code Execution and Denial of Service Vulnerability

A vulnerability in the Cisco Discovery Protocol feature of Cisco FXOS Software and Cisco NX-OS Software could allow an unauthenticated, adjacent attacker to execute arbitrary code as root or cause a denial of service DoS condition on an affected device. The vulnerability exists because of...

Cisco FXOS and NX-OS Software Cisco Discovery Protocol Arbitrary Code Execution and Denial of Service Vulnerability

A vulnerability in the Cisco Discovery Protocol feature of Cisco FXOS Software and Cisco NX-OS Software could allow an unauthenticated, adjacent attacker to execute arbitrary code as root or cause a denial of service DoS condition on an affected device. The vulnerability exists because of...

Lift the DDoS Smokescreen: Investigate Underlying Attacks

"Hold out baits to entice the enemy. Feign disorder, and crush him." Sun Tzu The sophistication of cybercriminals and the attraction of the “Black Hat” cyberspace have grown dramatically over the years. In the past, cyber assaults were carried out mostly by amateurs, motivated by boredom or plain...

PT-2020-1987 · Cisco · Cisco Fxos +2

Name of the Vulnerable Software and Affected Versions: Cisco FXOS Software and Cisco NX-OS Software affected versions not specified Description: A vulnerability in the Cisco Discovery Protocol feature could allow an unauthenticated, adjacent attacker to execute arbitrary code as root or cause a...