Hackers Actively Searching for Unpatched Microsoft Exchange Servers

Threat actors are actively carrying out opportunistic scanning and exploitation of Exchange servers using a new exploit chain leveraging a trio of flaws affecting on-premises installations, making them the latest set of bugs after ProxyLogon vulnerabilities were exploited en masse at the start of...

fs/nfs/nfs4client.c in the Linux kernel before 5.13.4 has incorrect connection-setup ordering which allows operators of remote NFSv4 servers to cause a denial of service (hanging of mounts) by arranging for those servers to be unreachable during trunking detection.

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[SECURITY] [DLA 2734-1] curl security update

------------------------------------------------------------------------- Debian LTS Advisory DLA-2734-1 [email protected] https://www.debian.org/lts/security/ Adrian Bunk August 09, 2021 https://wiki.debian.org/LTS -...

Wyse ThinOS Information Disclosure Vulnerability

Wyse ThinOS is a proprietary operating system for Dell servers from Dell, Inc. An information disclosure vulnerability exists in Wyse ThinOS 9.0, which stems from the fact that a malicious user with physical access to the system and who has been authenticated can read sensitive information writte...

Jarm - Active Transport Layer Security (TLS) server fingerprinting tool

Please read the initial JARM blog post for more information. JARM is an active Transport Layer Security TLS server fingerprinting tool. JARM fingerprints can be used to: Quickly verify that all servers in a group have the same TLS configuration. Group disparate servers on the internet by...

Cobalt Strike Vulnerability Affects Botnet Servers

Cobalt Strike is a security tool, used by penetration testers to simulate network attackers. But its also used by attackers -- from criminals to governments -- to automate their own attacks. Researchers have found a vulnerability in the product. The main components of the security tool are the...

Domain Hijacking

c-ares is vulnerable to Domain Hijacking. Missing input validation of host names returned by Domain Name Servers in the c-ares library can lead to output of wrong hostnames leading to Domain Hijacking...

golang: net/http: panic in ReadRequest and ReadResponse when reading a very large header

A vulnerability was detected in net/http of the Go standard library when parsing very large HTTP header values, causing a crash and subsequent denial of service. This vulnerability affects both clients and servers written in Go, however, servers are only vulnerable if the value of MaxHeaderBytes...

Connected Farms Easy Pickings for Global Food Supply-Chain Hack

A group of hackers made an unnerving DEF CON 29 presentation showing how the sprawling growth of digital and automated farming has left the world’s food supply chain vulnerable to cyberattack. A video for DEF CON 29 hacker conference this week put out by the group Sick Codes explained that modern...

UNC215: Spotlight on a Chinese Espionage Campaign in Israel

This blog post details the post-compromise tradecraft and operational tactics, techniques, and procedures TTPs of a Chinese espionage group we track as UNC215. While UNC215’s targets are located throughout the Middle East, Europe, Asia, and North America, this report focuses on intrusion activity...

samba bug fix and enhancement update

Samba is an open-source implementation of the Server Message Block SMB protocol and the related Common Internet File System CIFS protocol, which allow PC-compatible machines to share files, printers, and various information. Bug Fixes and Enhancements: /sbin/ldconfig: /lib64/libsmbldap.so.2 is no...

samba bug fix and enhancement update

An update is available for samba. This update affects Rocky Linux 8. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from the CVE list Samba is an open-source implementation of the Server Message Block SMB protocol...

USN-5034-1: c-ares vulnerability

Philipp Jeitner and Haya Shulman discovered that c-ares incorrectly validated certain hostnames returned by DNS servers. A remote attacker could possibly use this issue to perform Domain Hijacking attacks...

AZL-6583 CVE-2021-38199 affecting package kernel for versions less than 5.10.78.1-1

fs/nfs/nfs4client.c in the Linux kernel before 5.13.4 has incorrect connection-setup ordering, which allows operators of remote NFSv4 servers to cause a denial of service hanging of mounts by arranging for those servers to be unreachable during trunking detection...

CVE-2021-38199

fs/nfs/nfs4client.c in the Linux kernel before 5.13.4 has incorrect connection-setup ordering, which allows operators of remote NFSv4 servers to cause a denial of service hanging of mounts by arranging for those servers to be unreachable during trunking detection...

CVE-2021-38199

fs/nfs/nfs4client.c in the Linux kernel before 5.13.4 has incorrect connection-setup ordering, which allows operators of remote NFSv4 servers to cause a denial of service hanging of mounts by arranging for those servers to be unreachable during trunking detection...

Code injection

fs/nfs/nfs4client.c in the Linux kernel before 5.13.4 has incorrect connection-setup ordering, which allows operators of remote NFSv4 servers to cause a denial of service hanging of mounts by arranging for those servers to be unreachable during trunking detection...

CVE-2021-38199

CVE-2021-38199 concerns the Linux kernel’s NFSv4 client. The vulnerability arises from incorrect connection-setup ordering in fs/nfs/nfs4client.c, which can be triggered by remote NFSv4 servers during trunking detection, potentially causing a denial of service by hanging mounts. Connected advisor...

CVE-2021-38199

fs/nfs/nfs4client.c in the Linux kernel before 5.13.4 has incorrect connection-setup ordering, which allows operators of remote NFSv4 servers to cause a denial of service hanging of mounts by arranging for those servers to be unreachable during trunking detection...

Golang Cryptomining Worm Offers 15% Speed Boost

A freshly discovered variant of the Golang crypto-worm was recently spotted dropping Monero-mining malware on victim machines; in a switch-up of tactics, the payload binaries are capable of speeding up the mining process by 15 percent, researchers said. According to research from Uptycs, the worm...