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...

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...

nodejs: Remotely trigger an assertion on a TLS server with a malformed certificate string

An encoding error flaw exists in the Node.js code that is used to read a peer certificate in the TLS client authentication. An attacker can use this flaw to crash the process used to handle TLS client authentication...

nodejs: Remotely trigger an assertion on a TLS server with a malformed certificate string

An encoding error flaw exists in the Node.js code that is used to read a peer certificate in the TLS client authentication. An attacker can use this flaw to crash the process used to handle TLS client authentication...

nodejs: Remotely trigger an assertion on a TLS server with a malformed certificate string

An encoding error flaw exists in the Node.js code that is used to read a peer certificate in the TLS client authentication. An attacker can use this flaw to crash the process used to handle TLS client authentication...

PT-2020-19875 · Hashicorp · Nomad Enterprise +1

Name of the Vulnerable Software and Affected Versions: HashiCorp Nomad and Nomad Enterprise versions up to 0.10.2 Description: The issue concerns improper validation of role/region associated with TLS certificates used for mTLS RPC, making the system susceptible to privilege escalation...

OpenJDK: Incorrect handling of unexpected CertificateVerify TLS handshake messages (JSSE, 8231780)

Vulnerability in the Java SE product of Oracle Java SE component: JSSE. Supported versions that are affected are Java SE: 11.0.5 and 13.0.1. Difficult to exploit vulnerability allows unauthenticated attacker with network access via HTTPS to compromise Java SE. Successful attacks of this...

ALPINE-CVE-2019-17023

After a HelloRetryRequest has been sent, the client may negotiate a lower protocol that TLS 1.3, resulting in an invalid state transition in the TLS State Machine. If the client gets into this state, incoming Application Data records will be ignored. This vulnerability affects Firefox 72...

UBUNTU-CVE-2019-17023

After a HelloRetryRequest has been sent, the client may negotiate a lower protocol that TLS 1.3, resulting in an invalid state transition in the TLS State Machine. If the client gets into this state, incoming Application Data records will be ignored. This vulnerability affects Firefox 72...

qpid-proton: TLS Man in the Middle Vulnerability

A cryptographic weakness was discovered in qpid-proton's use of TLS. If the qpid-proton client was used without client certificates, it would accept an anonymous cipher offered by the server. A man-in-the-middle attacker could use this to silently intercept traffic that should have been encrypted...

DEBIAN-CVE-2019-19272

An issue was discovered in tlsverifycrl in ProFTPD before 1.3.6. Direct dereference of a NULL pointer a variable initialized to NULL leads to a crash when validating the certificate of a client connecting to the server in a TLS client/server mutual-authentication setup...

UBUNTU-CVE-2019-13680

Inappropriate implementation in TLS in Google Chrome prior to 77.0.3865.75 allowed a remote attacker to spoof client IP address to websites via crafted TLS connections...

UBUNTU-CVE-2019-10214

The containers/image library used by the container tools Podman, Buildah, and Skopeo in Red Hat Enterprise Linux version 8 and CRI-O in OpenShift Container Platform, does not enforce TLS connections to the container registry authorization service. An attacker could use this vulnerability to launc...

The vulnerability of the libpq library in the PostgreSQL database management system allows a hacker to execute a type of “man-in-the-middle” attack.

The vulnerability of the libpq library in the PostgreSQL database management system is related to the lack of mandatory use of TLS connections. Exploiting this vulnerability allows a remote attacker to execute a “man-in-the-middle” type attack...

tomcat: Host name verification missing in WebSocket client

The host name verification when using TLS with the WebSocket client was missing. It is now enabled by default. Versions Affected: Apache Tomcat 9.0.0.M1 to 9.0.9, 8.5.0 to 8.5.31, 8.0.0.RC1 to 8.0.52, and 7.0.35 to 7.0.88...

Explained: How New 'Delegated Credentials' Boosts TLS Protocol Security

Mozilla, in partnership with Facebook, Cloudflare, and other IETF community members, has announced technical specifications for a new cryptographic protocol called "Delegated Credentials for TLS." Delegated Credentials for TLS is a new simplified way to implement "short-lived" certificates withou...

containers/image: not enforcing TLS when sending username+password credentials to token servers leading to credential disclosure

The containers/image library used by the container tools Podman, Buildah, and Skopeo in Red Hat Enterprise Linux version 8 and CRI-O in OpenShift Container Platform, does not enforce TLS connections to the container registry authorization service. An attacker could use this vulnerability to launc...

DEBIAN-CVE-2019-5010

An exploitable denial-of-service vulnerability exists in the X509 certificate parser of Python.org Python 2.7.11 / 3.6.6. A specially crafted X509 certificate can cause a NULL pointer dereference, resulting in a denial of service. An attacker can initiate or accept TLS connections using crafted...