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Cybersecurity researchers have discovered an entirely new kind of Linux malware dubbed "CDRThief" that targets voice over IP (VoIP) softswitches in an attempt to steal phone call metadata. "The primary goal of the malware is to exfiltrate various private data from a compromised softswitch, including call detail records ( CDR )," ESET researchers said in a Thursday analysis . "To steal this metadata, the malware queries internal MySQL databases used by the softswitch. Thus, attackers demonstrate a good understanding of the internal architecture of the targeted platform." Softswitches (short for software switches) are generally VoIP servers that allow for telecommunication networks to provide management of voice, fax, data and video traffic, and call routing. ESET's research uncovered that CDRThief targeted a specific Linux VoIP platform, namely the VOS2009 and 3000 softswitches from Chinese company Linknat, and had its malicious functionalit...

Bluetooth SIG—an organization that oversees the development of Bluetooth standards—today issued a statement informing users and vendors of a newly reported unpatched vulnerability that potentially affects hundreds of millions of devices worldwide. Discovered independently by two separate teams of academic researchers, the flaw resides in the Cross-Transport Key Derivation (CTKD) of devices supporting both — Basic Rate/Enhanced Data Rate (BR/EDR) and Bluetooth Low Energy (BLE) standard. Cross-Transport Key Derivation (CTKD) is a Bluetooth component responsible for negotiating the authenticate keys when pairing two Bluetooth devices together, also known as "dual-mode" devices. Dubbed 'BLURtooth' and tracked as CVE-2020-15802 , the flaw exposes devices powered with Bluetooth 4.0 or 5.0 technology, allowing attackers to unauthorizedly connect to a targeted nearby device by overwriting the authenticated key or reducing the encryption key strength. "Dual-mod...

Cybercriminals successfully plundered another digital cryptocurrency exchange. European cryptocurrency exchange Eterbase this week disclosed a massive breach of its network by an unknown group of hackers who stole cryptocurrencies worth 5.4 million dollars. Eterbase, which has now entered maintenance mode until the security issue is resolved, described itself as Europe's Premier Digital Asset Exchange. Based in Bratislava, Slovakia, and launched in 2019, Eterbase is a small cryptocurrency exchange platform that focuses on crypto to SEPA integration (via individual IBAN accounts), multi-asset support, and regulatory compliance. On Monday night, malicious threat actors managed to raid six Eterbase's hot wallets for Bitcoin, Ethereum, XRP, Tezos, Algorand, and TRON and transferred the funds into their wallets managed at six rival crypto exchanges, Eterbase reported on its Telegram channel on Tuesday. According to a tweet posted by the affected exchange, Eterbase t...

IT help desks everywhere are having to adjust to the 'new normal' of supporting mainly remote workers. This is a major shift away from visiting desks across the office and helping ones with traditional IT support processes. Many reasons end-users may contact the helpdesk. However, password related issues are arguably the most common. Since the onset of the global pandemic that began earlier this year, help desks are now dealing with password resets of users who are working remotely. Servicing users who are working remotely and assisting with password resets can be cumbersome and expose organizations to potential security risks. Self-service password reset (SSPR) solutions can significantly assist in providing the tools that remote workers need to service their accounts. However, there can be challenges with enrollment and other issues. Let's take a look at SSPR and see how businesses can manage enrollment compliance. What is Self-Service Password Reset (SSPR)...

A group of researchers has detailed a new timing vulnerability in Transport Layer Security (TLS) protocol that could potentially allow an attacker to break the encryption and read sensitive communication under specific conditions. Dubbed " Raccoon Attack ," the server-side attack exploits a side-channel in the cryptographic protocol (versions 1.2 and lower) to extract the shared secret key used for secure communications between two parties. "The root cause for this side channel is that the TLS standard encourages non-constant-time processing of the DH secret," the researchers explained their findings in a paper. "If the server reuses ephemeral keys, this side channel may allow an attacker to recover the premaster secret by solving an instance of the Hidden Number Problem." However, the academics stated that the vulnerability is hard to exploit and relies on very precise timing measurements and on a specific server configuration to be exploitable. ...

We have all heard of the "cybersecurity skills gap" — firms' inability to hire and retain high-level cybersecurity talent. I see this gap manifesting in two ways. First, companies that want to hire cybersecurity talent simply cannot find candidates with sufficient skills. Second, companies that cannot afford specialized cybersecurity talent and therefore lack the necessary skills to adequately protect their organizations from the growing and increasingly sophisticated cyber threats. Both of these are real problems, and both can lead to devastating consequences. It's also fair to say that most cybersecurity teams today are overworked and understaffed. One of the primary reasons we need such high-level cybersecurity skills lies in the shortcomings of cybersecurity technologies. Due to the changing and increasingly sophisticated stream of attack techniques, the breadth and depth of cybersecurity defensive technologies used to combat these threats and protect org...

A cybercrime group that has previously struck Docker and Kubernetes cloud environments has evolved to repurpose genuine cloud monitoring tools as a backdoor to carry out malicious attacks, according to new research. "To our knowledge, this is the first time attackers have been caught using legitimate third party software to target cloud infrastructure," Israeli cybersecurity firm Intezer said in a Tuesday analysis. Using software called Weave Scope , which is used as a visualization and monitoring tool for Docker and Kubernetes services, the TeamTNT threat actor not only mapped the cloud environment of their victims but also executed system commands without having to deploy malicious code on the target server explicitly. TeamTNT has been active at least since late April this year, directing their attacks on misconfigured Docker ports to install a cryptocurrency mining malware and a Distributed Denial-of-Service (DDoS) bot. Then last month , the crypto-mining gan...

As part of this month's Patch Tuesday, Microsoft today released a fresh batch of security updates to fix a total of 129 newly discovered security vulnerabilities affecting various versions of its Windows operating systems and related software. Of the 129 bugs spanning its various products — Microsoft Windows, Edge browser, Internet Explorer, ChakraCore, SQL Server, Exchange Server, Office, ASP.NET, OneDrive, Azure DevOps, Visual Studio, and Microsoft Dynamics — that received new patches, 23 are listed as critical, 105 are important, and one is moderate in severity. Unlike the past few months, none of the security vulnerabilities the tech giant patched in September are listed as being publicly known or under active attack at the time of release or at least not in knowledge of Microsoft. A memory corruption vulnerability ( CVE-2020-16875 ) in Microsoft Exchange software is worth highlighting all the critical flaws. The exploitation of this flaw could allow an attacker to run ...