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Category — network security
Chinese Hackers Exploit Zero-Day Cisco Switch Flaw to Gain System Control

Chinese Hackers Exploit Zero-Day Cisco Switch Flaw to Gain System Control

Aug 22, 2024 Network Security / Zero-Day
Details have emerged about a China-nexus threat group's exploitation of a recently disclosed, now-patched security flaw in Cisco switches as a zero-day to seize control of the appliances and evade detection. The activity, attributed to Velvet Ant, was observed early this year and involved the weaponization of CVE-2024-20399 (CVSS score: 6.0) to deliver bespoke malware and gain extensive control over the compromised system, facilitating both data exfiltration and persistent access. "The zero-day exploit allows an attacker with valid administrator credentials to the Switch management console to escape the NX-OS command line interface (CLI) and execute arbitrary commands on the Linux underlying operating system," cybersecurity company Sygnia said in a report shared with The Hacker News. Velvet Ant first caught the attention of researchers at the Israeli cybersecurity company in connection with a multi-year campaign that targeted an unnamed organization located in Eas
It's Time To Untangle the SaaS Ball of Yarn

It's Time To Untangle the SaaS Ball of Yarn

Aug 21, 2024 SaaS Security / Data Security
It's no great revelation to say that SaaS applications have changed the way we operate, both in our personal and professional lives. We routinely rely on cloud-based and remote applications to conduct our basic functions, with the result that the only true perimeter of our networks has become the identities with which we log into these services. Unfortunately – as is so often the case – our appetite for better workflows, collaboration, and communications outpaced our willingness to make sure these tools and processes were secure as we hooked them into our environments, handing off our control of the security of our data. Each of these applications asks for various amounts of permissions into our data, which often rely on other vendors' services, creating not a network, but a tangle of interdependent intricacies that has become so complex most security and IT teams don't even know how many SaaS applications are connected in, let alone what they are or their access permissi
CTEM in the Spotlight: How Gartner's New Categories Help to Manage Exposures

CTEM in the Spotlight: How Gartner's New Categories Help to Manage Exposures

Aug 27, 2024Threat Management / Enterprise Security
Want to know what's the latest and greatest in SecOps for 2024? Gartner's recently released Hype Cycle for Security Operations report takes important steps to organize and mature the domain of Continuous Threat Exposure Management, aka CTEM. Three categories within this domain are included in this year's report: Threat Exposure Management, Exposure Assessment Platforms (EAP), and Adversarial Exposure Validation (AEV). These category definitions are aimed at providing some structure to the evolving landscape of exposure management technologies. Pentera, listed as a sample vendor in the newly defined AEV category, is playing a pivotal role in increasing the adoption of CTEM, with a focus on security validation. Following is our take on the CTEM related product categories and what they mean for enterprise security leaders. The Industry is Maturing CTEM, coined by Gartner in 2022, presents a structural approach for continuously assessing, prioritizing, validating, and remediating expo
Styx Stealer Creator's OPSEC Fail Leaks Client List and Profit Details

Styx Stealer Creator's OPSEC Fail Leaks Client List and Profit Details

Aug 21, 2024 Cyber Espionage / Threat Intelligence
In what's a case of an operational security (OPSEC) lapse, the operator behind a new information stealer called Styx Stealer leaked data from their own computer, including details related to the clients, profit information, nicknames, phone numbers, and email addresses. Styx Stealer, a derivative of the Phemedrone Stealer , is capable of stealing browser data, instant messenger sessions from Telegram and Discord, and cryptocurrency wallet information, cybersecurity company Check Point said in an analysis. It first emerged in April 2024. "Styx Stealer is most likely based on the source code of an old version of Phemedrone Stealer, which lacks some features found in newer versions such as sending reports to Telegram, report encryption, and more," the company noted . "However, the creator of Styx Stealer added some new features: auto-start, clipboard monitor and crypto-clipper, additional sandbox evasion, and anti-analysis techniques, and re-implemented sending dat
cyber security

Saas Attacks Report: 2024 Edition

websitePush SecuritySaaS Security / Offensive Security
Offensive security drives defensive security. Learn about the SaaS Attack Matrix – compiling the latest attack techniques facing SaaS-native and hybrid organizations.
Researchers Uncover TLS Bootstrap Attack on Azure Kubernetes Clusters

Researchers Uncover TLS Bootstrap Attack on Azure Kubernetes Clusters

Aug 20, 2024 Vulnerability / Container Security
Cybersecurity researchers have disclosed a security flaw impacting Microsoft Azure Kubernetes Services that, if successfully exploited, could allow an attacker to escalate their privileges and access credentials for services used by the cluster. "An attacker with command execution in a pod running within an affected Azure Kubernetes Services cluster could download the configuration used to provision the cluster node, extract the transport layer security (TLS) bootstrap tokens, and perform a TLS bootstrap attack to read all secrets within the cluster," Google-owned Mandiant said . Clusters using "Azure CNI" for the "Network configuration" and "Azure" for the "Network Policy" have been found to be impacted by the privilege escalation bug. Microsoft has since addressed the issue following responsible disclosure. The attack technique devised by the threat intelligence firm hinges on accessing a little-known component called Azure WireS
Cybercriminals Exploit Popular Software Searches to Spread FakeBat Malware

Cybercriminals Exploit Popular Software Searches to Spread FakeBat Malware

Aug 19, 2024 Malvertising / Cybercrime
Cybersecurity researchers have uncovered a surge in malware infections stemming from malvertising campaigns distributing a loader called FakeBat. "These attacks are opportunistic in nature, targeting users seeking popular business software," the Mandiant Managed Defense team said in a technical report. "The infection utilizes a trojanized MSIX installer, which executes a PowerShell script to download a secondary payload." FakeBat , also called EugenLoader and PaykLoader, is linked to a threat actor named Eugenfest. The Google-owned threat intelligence team is tracking the malware under the name NUMOZYLOD and has attributed the Malware-as-a-Service (MaaS) operation to UNC4536. Attack chains propagating the loader malware make use of drive-by download techniques to push users searching for popular software toward bogus lookalike sites that host booby-trapped MSI installers. Some of the malware families delivered via FakeBat include IcedID, RedLine Stealer, Lumma
Researchers Uncover New Infrastructure Tied to FIN7 Cybercrime Group

Researchers Uncover New Infrastructure Tied to FIN7 Cybercrime Group

Aug 19, 2024 Cybercrime / Network Security
Cybersecurity researchers have discovered new infrastructure linked to a financially motivated threat actor known as FIN7 . The two clusters of potential FIN7 activity "indicate communications inbound to FIN7 infrastructure from IP addresses assigned to Post Ltd (Russia) and SmartApe (Estonia), respectively," Team Cymru said in a report published this week as part of a joint investigation with Silent Push and Stark Industries Solutions. The findings build on a recent report from Silent Push, which found several Stark Industries IP addresses that are solely dedicated to hosting FIN7 infrastructure. The latest analysis indicates that the hosts linked to the e-crime group were likely procured from one of Stark's resellers. "Reseller programs are common in the hosting industry; many of the largest VPS (virtual private server) providers offer such services," the cybersecurity company said. "Customers procuring infrastructure via resellers generally must
Google to Remove App that Made Google Pixel Devices Vulnerable to Attacks

Google to Remove App that Made Google Pixel Devices Vulnerable to Attacks

Aug 16, 2024 Mobile Security / Software Security
A large percentage of Google's own Pixel devices shipped globally since September 2017 included dormant software that could be used to stage nefarious attacks and deliver various kinds of malware. The issue manifests in the form of a pre-installed Android app called "Showcase.apk" that comes with excessive system privileges, including the ability to remotely execute code and install arbitrary packages on the device, according to mobile security firm iVerify. "The application downloads a configuration file over an unsecure connection and can be manipulated to execute code at the system level," it said in an analysis published jointly with Palantir Technologies and Trail of Bits. "The application retrieves the configuration file from a single U.S.-based, AWS-hosted domain over unsecured HTTP, which leaves the configuration vulnerable and can make the device vulnerable." The app in question is called Verizon Retail Demo Mode ("com.customermob
New Gafgyt Botnet Variant Targets Weak SSH Passwords for GPU Crypto Mining

New Gafgyt Botnet Variant Targets Weak SSH Passwords for GPU Crypto Mining

Aug 15, 2024 Network Security / Cybercrime
Cybersecurity researchers have discovered a new variant of the Gafgyt botnet that's targeting machines with weak SSH passwords to ultimately mine cryptocurrency on compromised instances using their GPU computational power. This indicates that the "IoT botnet is targeting more robust servers running on cloud native environments," Aqua Security researcher Assaf Morag said in a Wednesday analysis. Gafgyt (aka BASHLITE, Lizkebab, and Torlus), known to be active in the wild since 2014, has a history of exploiting weak or default credentials to gain control of devices such as routers, cameras, and digital video recorders (DVRs). It's also capable of leveraging known security flaws in Dasan, Huawei, Realtek, SonicWall, and Zyxel devices. The infected devices are corralled into a botnet capable of launching distributed denial-of-service (DDoS) attacks against targets of interest. There is evidence to suggest that Gafgyt and Necro are operated by a threat group calle
Black Basta-Linked Attackers Target Users with SystemBC Malware

Black Basta-Linked Attackers Target Users with SystemBC Malware

Aug 14, 2024 Malware / Network Security
An ongoing social engineering campaign with alleged links to the Black Basta ransomware group has been linked to "multiple intrusion attempts" with the goal of conducting credential theft and deploying a malware dropper called SystemBC. "The initial lure being utilized by the threat actors remains the same: an email bomb followed by an attempt to call impacted users and offer a fake solution," Rapid7 said , adding "external calls were typically made to the impacted users via Microsoft Teams." The attack chain then convinces the user to download and install a legitimate remote access software named AnyDesk, which acts as a channel for deploying follow-on payloads and exfiltrate sensitive data. This includes the use of an executable called "AntiSpam.exe" that purports to download email spam filters and urges users to enter their Windows credentials to complete the update. The step is followed by the execution of several binaries, DLL files,
DDoS Attacks Surge 46% in First Half of 2024, Gcore Report Reveals

DDoS Attacks Surge 46% in First Half of 2024, Gcore Report Reveals

Aug 14, 2024 Network Security / Cyber Threat
Monitoring evolving DDoS trends is essential for anticipating threats and adapting defensive strategies. The comprehensive Gcore Radar Report for the first half of 2024 provides detailed insights into DDoS attack data, showcasing changes in attack patterns and the broader landscape of cyber threats. Here, we share a selection of findings from the full report. Key Takeaways The number of DDoS attacks in H1 2024 has increased by 46% compared to the same period last year, reaching 445K in Q2 2024. Compared to data for the previous six months (Q3–4 2023), it increased by 34%. Peak attack power increased slightly: The most powerful attack in H1 2024 reached 1.7 Tbps. By comparison, in 2023, it was 1.6 Tbps. Although there has only been an increase of 0.1 Tbps in a year, this still indicates a gain in power that poses a significant danger. To put this into perspective, a terabit per second (Tbps) represents a massive amount of data flooding a network, equivalent to over 212,000 high-d
Critical Flaw in Ivanti Virtual Traffic Manager Could Allow Rogue Admin Access

Critical Flaw in Ivanti Virtual Traffic Manager Could Allow Rogue Admin Access

Aug 14, 2024 Vulnerability / Network Security
Ivanti has rolled out security updates for a critical flaw in Virtual Traffic Manager (vTM) that could be exploited to achieve an authentication bypass and create rogue administrative users. The vulnerability, tracked as CVE-2024-7593, has a CVSS score of 9.8 out of a maximum of 10.0. "Incorrect implementation of an authentication algorithm in Ivanti vTM other than versions 22.2R1 or 22.7R2 allows a remote unauthenticated attacker to bypass authentication of the admin panel," the company said in an advisory. It impacts the following versions of vTM - 22.2 (fixed in version 22.2R1) 22.3 (fixed in version 22.3R3, available week of August 19, 2024) 22.3R2 (fixed in version 22.3R3, available week of August 19, 2024) 22.5R1 (fixed in version 22.5R2, available week of August 19, 2024) 22.6R1 (fixed in version 22.6R2, available week of August 19, 2024) 22.7R1 (fixed in version 22.7R2) As temporary mitigation, Ivanti is recommending customers to limit admin access to th
FBI Shuts Down Dispossessor Ransomware Group's Servers Across U.S., U.K., and Germany

FBI Shuts Down Dispossessor Ransomware Group's Servers Across U.S., U.K., and Germany

Aug 13, 2024 Ransomware / Network Security
The U.S. Federal Bureau of Investigation (FBI) on Monday announced the disruption of online infrastructure associated with a nascent ransomware group called Radar/Dispossessor. The effort saw the dismantling of three U.S. servers, three United Kingdom servers, 18 German servers, eight U.S.-based criminal domains, and one German-based criminal domain. Dispossessor is said to be led by individual(s) who go by the online moniker "Brain." "Since its inception in August 2023, Radar/Dispossessor has quickly developed into an internationally impactful ransomware group, targeting and attacking small-to-mid-sized businesses and organizations from the production, development, education, healthcare, financial services, and transportation sectors," the FBI said in a statement. As many as 43 companies have been identified as victims of Dispossessor attacks, including those located in Argentina, Australia, Belgium, Brazil, Canada, Croatia, Germany, Honduras, India, Peru, Pol
FreeBSD Releases Urgent Patch for High-Severity OpenSSH Vulnerability

FreeBSD Releases Urgent Patch for High-Severity OpenSSH Vulnerability

Aug 12, 2024 Cybersecurity / Network Security
The maintainers of the FreeBSD Project have released security updates to address a high-severity flaw in OpenSSH that attackers could potentially exploit to execute arbitrary code remotely with elevated privileges. The vulnerability, tracked as CVE-2024-7589 , carries a CVSS score of 7.4 out of a maximum of 10.0, indicating high severity. "A signal handler in sshd(8) may call a logging function that is not async-signal-safe," according to an advisory released last week. "The signal handler is invoked when a client does not authenticate within the LoginGraceTime seconds (120 by default). This signal handler executes in the context of the sshd(8)'s privileged code, which is not sandboxed and runs with full root privileges." OpenSSH is an implementation of the secure shell (SSH) protocol suite, providing encrypted and authenticated transport for a variety of services, including remote shell access. CVE-2024-7589 has been described as "another instance&
Industrial Remote Access Tool Ewon Cosy+ Vulnerable to Root Access Attacks

Industrial Remote Access Tool Ewon Cosy+ Vulnerable to Root Access Attacks

Aug 12, 2024 Operational Technology / Network Security
Security vulnerabilities have been disclosed in the industrial remote access solution Ewon Cosy+ that could be abused to gain root privileges to the devices and stage follow-on attacks. The elevated access could then be weaponized to decrypt encrypted firmware files and encrypted data such as passwords in configuration files, and even get correctly signed X.509 VPN certificates for foreign devices to take over their VPN sessions. "This allows attackers hijacking VPN sessions which results in significant security risks against users of the Cosy+ and the adjacent industrial infrastructure," SySS GmbH security researcher Moritz Abrell said in a new analysis. The findings were presented at the DEF CON 32 conference over the weekend. Following responsible disclosure, the issues have been addressed in firmware versions 21.2s10 and 22.1s3 as part of an advisory [PDF] issued by Ewon on July 29, 2024 - CVE-2024-33892 (CVSS score: 7.4) - Information leakage through cookies
Microsoft Warns of Unpatched Office Vulnerability Leading to Data Exposure

Microsoft Warns of Unpatched Office Vulnerability Leading to Data Exposure

Aug 10, 2024 Vulnerability / Enterprise Security
Microsoft has disclosed an unpatched zero-day in Office that, if successfully exploited, could result in unauthorized disclosure of sensitive information to malicious actors. The vulnerability, tracked as CVE-2024-38200 (CVSS score: 7.5), has been described as a spoofing flaw that affects the following versions of Office - Microsoft Office 2016 for 32-bit edition and 64-bit editions Microsoft Office LTSC 2021 for 32-bit and 64-bit editions Microsoft 365 Apps for Enterprise for 32-bit and 64-bit Systems Microsoft Office 2019 for 32-bit and 64-bit editions Credited with discovering and reporting the vulnerability are researchers Jim Rush and Metin Yunus Kandemir.  "In a web-based attack scenario, an attacker could host a website (or leverage a compromised website that accepts or hosts user-provided content) that contains a specially crafted file that is designed to exploit the vulnerability," Microsoft said in an advisory. "However, an attacker would have no w
CISA Warns of Hackers Exploiting Legacy Cisco Smart Install Feature

CISA Warns of Hackers Exploiting Legacy Cisco Smart Install Feature

Aug 09, 2024 Vulnerability / Network Security
The U.S. Cybersecurity and Infrastructure Security Agency (CISA) has disclosed that threat actors are abusing the legacy Cisco Smart Install ( SMI ) feature with the aim of accessing sensitive data. The agency said it has seen adversaries "acquire system configuration files by leveraging available protocols or software on devices, such as abusing the legacy Cisco Smart Install feature." It also said it continues to observe weak password types used on Cisco network devices, thereby exposing them to password-cracking attacks. Password types refer to algorithms that are used to secure a Cisco device's password within a system configuration file. Threat actors who are able to gain access to the device in this manner would be able to easily access system configuration files, facilitating a deeper compromise of the victim networks. "Organizations must ensure all passwords on network devices are stored using a sufficient level of protection," CISA said, adding it re
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