MITRE ATT&CK® mappings released for built-in Azure security controls

The Security Stack Mappings for Azure research project was published today, introducing a library of mappings that link built-in Azure security controls to the MITRE ATT&CK® techniques they mitigate against. Microsoft once again worked with the Center for Threat-Informed Defense and other Center...

Live Cybersecurity Webinar — Deconstructing Cobalt Strike

Organizations' cybersecurity capabilities have improved over the past decade, mostly out of necessity. As their defenses get better, so do the methods, tactics, and techniques malicious actors devise to penetrate their environments. Instead of the standard virus or trojan, attackers today will...

Kill chains: Part 2→Strategic and tactical use cases

Let’s redefine In our new blog series, we want to contextualize the term “kill chain” as much as possible. Make sure to read the first entry in this series, Kill chains: Part 1→Strategic and operational value, for a general overview of kill chains and the specific frameworks we’ve discussed. We...

Cybercriminals Hold $115,000-Prize Contest to Find New Cryptocurrency Hacks

A top Russian-language underground forum has been running a "contest" for the past month, calling on its community to submit "unorthodox" ways to conduct cryptocurrency attacks. The forum's administrator, in an announcement made on April 20, 2021, invited members to submit papers that assess the...

CISA Releases Best Practices for Mapping to MITRE ATT&CK®

As part of an effort to encourage a common language in threat actor analysis, CISA has released Best Practices for MITRE ATT&CK® Mapping. The guide shows analysts—through instructions and examples—how to map adversary behavior to the MITRE ATT&CK framework. CISA created this guide in partnership...

Malware Can Use This Trick to Bypass Ransomware Defense in Antivirus Solutions

Researchers have disclosed significant security weaknesses in popular antivirus software applications that could be abused to deactivate their protections and take control of allow-listed applications to perform nefarious operations on behalf of the malware to defeat anti-ransomware defenses. The...

Do you know your OpSec?

Open Source Intelligence OSINT is any information in the public domain that an attacker can dig up about you. Because of that it forms the basis of every Red Team engagement, as threat actor scenarios are created using publicly available information. Bearing that in mind it makes sense to review...

8x8: [jitsi-meet] Authentication Bypass when using JWT w/ public keys

A Prosody module allows the use of symmetrical algorithms to validate JWTs. This means that tokens generated by arbitrary sources can be used to gain authorization to protected rooms. There are no known incidents related to this vulnerability. Please refer to the published advisory:...

CVE-2020-12061

An issue was discovered in Nitrokey FIDO U2F firmware through 1.1. Communication between the microcontroller and the secure element transmits credentials in plain. This allows an adversary to eavesdrop the communication and derive the secrets stored in the microcontroller. As a result, the attack...

Design/Logic Flaw

The flash read-out protection RDP level is not enforced during the device initialization phase of the SoloKeys Solo 4.0.0 & Somu and the Nitrokey FIDO2 token. This allows an adversary to downgrade the RDP level and access secrets such as private ECC keys from SRAM via the debug interface...

Design/Logic Flaw

The elliptic curve cryptography ECC hardware accelerator, part of the ARM® TrustZone® CryptoCell 310, contained in the NordicSemiconductor nRF52840 through 2021-03-29 has a non-constant time ECDSA implemenation. This allows an adversary to recover the private ECC key used during an ECDSA operatio...

CVE-2020-27208

The flash read-out protection RDP level is not enforced during the device initialization phase of the SoloKeys Solo 4.0.0 & Somu and the Nitrokey FIDO2 token. This allows an adversary to downgrade the RDP level and access secrets such as private ECC keys from SRAM via the debug interface...

CVE-2020-27208

The CVE-2020-27208 issue affects SoloKeys Solo 4.0.0 & Somu and the Nitrokey FIDO2 token, where the flash read-out protection (RDP) level is not enforced during device initialization, enabling an attacker with physical access to downgrade RDP and read secrets (e.g., private ECC keys) from SRAM vi...

SimuLand: Understand adversary tradecraft and improve detection strategies

At Microsoft, we continuously collaborate with customers and the InfoSec community to learn more about the latest adversary tradecraft so that we can improve our detection strategies across all our security services. Even though those detections are already built into our products, and protecting...

CVE-2020-26146

A vulnerability was found in Linux kernel, where the WiFi implementation reassemble fragments with non-consecutive packet numbers. An adversary can abuse this to exfiltrate selected fragments. This vulnerability is exploitable when another device sends fragmented frames and the WEP, CCMP, or GCMP...

CVE-2020-26142

Removed by vendor...

GravCMS 1.10.7 Remote Command Execution Exploit

This Metasploit module exploits an arbitrary config write/update vulnerability to achieve remote code execution. Unauthenticated users can execute a terminal command under the context of the web server user. Grav Admin Plugin is an HTML user interface that provides a way to configure Grav and...

GHSA-RVCW-F68W-8H8H Padding Oracle Attack due to Observable Timing Discrepancy in jose-node-cjs-runtime

Impact AESCBCHMACSHA2 Algorithm A128CBC-HS256, A192CBC-HS384, A256CBC-HS512 decryption would always execute both HMAC tag verification and CBC decryption, if either failed JWEDecryptionFailed would be thrown. But a possibly observable difference in timing when padding error would occur while...

GHSA-4V4G-726H-XVFV Padding Oracle Attack due to Observable Timing Discrepancy in jose-node-esm-runtime

Impact AESCBCHMACSHA2 Algorithm A128CBC-HS256, A192CBC-HS384, A256CBC-HS512 decryption would always execute both HMAC tag verification and CBC decryption, if either failed JWEDecryptionFailed would be thrown. But a possibly observable difference in timing when padding error would occur while...

GHSA-94HH-PJJG-RWMR Padding Oracle Attack due to Observable Timing Discrepancy in jose-browser-runtime

Impact AESCBCHMACSHA2 Algorithm A128CBC-HS256, A192CBC-HS384, A256CBC-HS512 decryption would always execute both HMAC tag verification and CBC decryption, if either failed JWEDecryptionFailed would be thrown. But a possibly observable difference in timing when padding error would occur while...