Baphomet - Basic Concept Of How A Ransomware Works

This is a proof of concept of how a ransomware works, and some techniques that we usually use to hijack our files. This project is written in C using the net-core application framework 3.1.The main idea of the code is to make it as readable as possible so that people have an idea of how this type...

openSUSE Security Update : libssh2_org (openSUSE-2020-2126)

This update for libssh2org fixes the following issues : - Version update to 1.9.0: bsc1178083, jscSLE-16922 Enhancements and bugfixes : - adds ECDSA keys and host key support when using OpenSSL - adds ED25519 key and host key support when using OpenSSL 1.1.1 - adds OpenSSH style key file reading ...

What did DeathStalker hide between two ferns?

DeathStalker is a threat actor thats been active since at least 2012, and we exposed most of their past activities in a previous article, as well as during a GREAT Ideas conference in August 2020. The actor drew our attention in 2018 because of distinctive attack characteristics that didnt fit in...

CVE-2020-6018

Valve's Game Networking Sockets prior to version v1.2.0 improperly handles long encrypted messages in function AESGCMDecryptContext::Decrypt when compiled using libsodium, leading to a Stack-Based Buffer Overflow and resulting in a memory corruption and possibly even a remote code execution...

Valvesoftware GameNetworkingSockets Buffer Error Vulnerability

Valvesoftware GameNetworkingSockets is a transport layer support software for games to pass data from Valvesoftware USA. A security vulnerability exists in Valve Game Networking Sockets versions prior to 1.2.0, which stems from the incorrect handling of long encrypted messages in...

Security update for libssh2_org (moderate)

openSUSE Security Update: Security update for libssh2org Announcement ID: openSUSE-SU-2020:2129-1 Rating: moderate References: 1130103 1178083 Cross-References: CVE-2019-17498 CVE-2019-3855 CVE-2019-3856 CVE-2019-3857 CVE-2019-3858 CVE-2019-3859 CVE-2019-3860 CVE-2019-3861 CVE-2019-3862...

OPENSUSE-SU-2020:2126-1 Security update for libssh2_org

This update for libssh2org fixes the following issues: - Version update to 1.9.0: bsc1178083, jscSLE-16922 Enhancements and bugfixes: adds ECDSA keys and host key support when using OpenSSL adds ED25519 key and host key support when using OpenSSL 1.1.1 adds OpenSSH style key file reading adds AES...

SUSE-SU-2020:3551-1 Security update for libssh2_org

This update for libssh2org fixes the following issues: - Version update to 1.9.0: bsc1178083, jscSLE-16922 Enhancements and bugfixes: adds ECDSA keys and host key support when using OpenSSL adds ED25519 key and host key support when using OpenSSL 1.1.1 adds OpenSSH style key file reading adds AES...

Moderate: Red Hat Security Advisory: Red Hat Virtualization security, bug fix, and enhancement update

An update for imgbased, redhat-release-virtualization-host, and redhat-virtualization-host is now available for Red Hat Virtualization 4 for Red Hat Enterprise Linux 8. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System CV...

In-band Protocol Negotiation And Robustness Weakness

aws-encryption-sdk suffers from an In-band protocol negotiation and robustness weakness. The SDK allows a unique ciphertext to be decrypted into different results due to the non-committing property of AES-GCM, and other AEAD ciphers such as AES-GCM-SIV, or XChaCha20Poly1305, when encrypting...

CVE-2020-8897

A weak robustness vulnerability exists in the AWS Encryption SDKs for Java, Python, C and Javalcript prior to versions 2.0.0. Due to the non-committing property of AES-GCM and other AEAD ciphers such as AES-GCM-SIV or XChaCha20Poly1305 used by the SDKs to encrypt messages, an attacker can craft a...

CVE-2020-8897

A weak robustness vulnerability exists in the AWS Encryption SDKs for Java, Python, C and Javalcript prior to versions 2.0.0. Due to the non-committing property of AES-GCM and other AEAD ciphers such as AES-GCM-SIV or XChaCha20Poly1305 used by the SDKs to encrypt messages, an attacker can craft a...

Design/Logic Flaw

A weak robustness vulnerability exists in the AWS Encryption SDKs for Java, Python, C and Javalcript prior to versions 2.0.0. Due to the non-committing property of AES-GCM and other AEAD ciphers such as AES-GCM-SIV or XChaCha20Poly1305 used by the SDKs to encrypt messages, an attacker can craft a...

CVE-2020-8897

A weak robustness vulnerability exists in the AWS Encryption SDKs for Java, Python, C and Javalcript prior to versions 2.0.0. Due to the non-committing property of AES-GCM and other AEAD ciphers such as AES-GCM-SIV or XChaCha20Poly1305 used by the SDKs to encrypt messages, an attacker can craft a...

PYSEC-2020-261

A weak robustness vulnerability exists in the AWS Encryption SDKs for Java, Python, C and Javalcript prior to versions 2.0.0. Due to the non-committing property of AES-GCM and other AEAD ciphers such as AES-GCM-SIV or XChaCha20Poly1305 used by the SDKs to encrypt messages, an attacker can craft a...

CVE-2020-8897

CVE-2020-8897 : A weak robustness vulnerability affects the AWS Encryption SDKs for Java, Python, C and Javalcript prior to 2.0.0. The non-committing property of AES-GCM (and related AEAD ciphers) can let an attacker craft a unique ciphertext that decrypts to multiple different results, which is ...

CVE-2020-8897 Robustness weakness in AWS KMS and Encryption SDKs

A weak robustness vulnerability exists in the AWS Encryption SDKs for Java, Python, C and Javalcript prior to versions 2.0.0. Due to the non-committing property of AES-GCM and other AEAD ciphers such as AES-GCM-SIV or XChaCha20Poly1305 used by the SDKs to encrypt messages, an attacker can craft a...

CVE-2020-28368

A flaw was found in Xen where access to power/energy monitoring interfaces was not properly restricted to privileged software. This flaw allows an unprivileged guest administrator to create covert channels and infer the operations or data used by other contexts within the system, such as AES keys...

Vulnerabilities in processors fixed

Researchers have found vulnerabilities in several processors. The vulnerabilities marked CVE-2020-8694 and CVE-2020-8695 have been named Platypus, an acronym for Power Leakage Attacks: Targeting Your Protected User Secrets. The vulnerabilities allow a local malicious person to obtain obtain...

Oracle Linux 8 : libssh (ELSA-2020-4545)

The remote Oracle Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2020-4545 advisory. - Add a test for CVE-2019-14889 - Fixed CVE-2019-14889 1781782 - Fixed CVE-2020-1730 1802422 Tenable has extracted the preceding description block...