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University of Minnesota banned from contributing to Linux Kernel for circulating buggy patches

Linux Kernel Project maintainers imposed a ban on The University of Minnesota for committing malicious code

22-Apr-2021
4 min read

Related Articles

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Healthcare

Ascension

Ascension Healthcare suffers massive data breach impacting 5.6 million patients....

**Ascension**, one of the largest private healthcare networks in the U.S., has confirmed that nearly **5.6 million patients and employees** have been affected by a **Black Basta ransomware attack**. The breach, which occurred in **May 2023**, compromised highly sensitive personal and health-related information, sparking alarm across the healthcare industry. ### **What Happened? The Black Basta Cyberattack Explained** On **May 8, 2023**, Ascension detected unauthorized activity on its systems, which triggered an immediate investigation. According to official reports, the cyberattack resulted from an employee mistakenly downloading a malicious file onto a company device, thereby enabling the ransomware attack. While Ascension was quick to respond, the attack crippled its **MyChart electronic health records system**, halting operations and forcing the healthcare system to temporarily switch to manual records. Some **non-emergent procedures, tests, and appointments** were paused, and emergency medical services had to be redirected to prevent triage delays. --- ## **Critical Data Compromised: Personal, Medical, and Financial Information Exposed** The cyberattack has exposed a wide range of sensitive information, affecting nearly **5.6 million individuals**. The compromised data includes: - **Medical information**: Record numbers, service dates, and procedure codes - **Payment details**: Credit card and bank account information - **Insurance data**: Medicaid/Medicare IDs, policy numbers, and claims - **Government IDs**: Social Security numbers, tax IDs, driver’s licenses, and passports - **Personal information**: Names, addresses, and dates of birth This data breach represents a significant threat to personal security, making affected individuals vulnerable to identity theft, financial fraud, and medical identity theft. --- ## **Ascension’s Response: Free Identity Theft Protection and More** In a bid to mitigate the damage, Ascension is offering **24 months of free identity theft protection services** to the 5.6 million affected individuals. The company has partnered with **IDX**, a leading identity theft protection service, which will provide **CyberScan monitoring** and a **$1 million insurance reimbursement policy**. ### **Law Enforcement Involvement: CISA, FBI, and Cybersecurity Experts Engaged** Ascension promptly notified key **law enforcement** agencies, including the **FBI** and **CISA**, about the breach. The company’s internal investigation, supported by top cybersecurity experts, revealed the depth of the compromise, confirming the involvement of **Black Basta**, a notorious ransomware group that has accelerated attacks against the healthcare sector. --- ## **Black Basta Cybercrime Gang: Who They Really Are?** Black Basta, which first emerged in **April 2022**, has rapidly become one of the most dangerous and profitable ransomware operations. Known for targeting high-profile organizations worldwide, this cybercrime group has successfully breached several major companies, including: - **Rheinmetall** (German defense contractor) - **Capita** (UK-based outsourcing giant) - **ABB** (U.S. government contractor) - **Toronto Public Library** According to joint research from **Elliptic** and **Corvus Insurance**, Black Basta has raked in over **$100 million** from more than 90 victims until November 2023, and it continues to pose a significant threat to the healthcare sector. ## **A Staggering Healthcare Crisis** This breach highlights the escalating **cybersecurity risks** faced by healthcare systems, which store massive amounts of personal and sensitive data. Experts warn that the **Black Basta ransomware group** could target more healthcare institutions, amplifying the need for enhanced cybersecurity measures across the sector. As ransomware gangs like **Black Basta** continue to evolve and target healthcare networks, institutions must prioritize **cyber resilience** and data protection protocols to safeguard patient and employee data from future attacks. ### **What’s Next for Ascension?** While Ascension has already started notifying affected individuals and offering identity protection, the road to recovery will be long. The healthcare system has vowed to bolster its cybersecurity defenses to prevent future breaches and protect its vast network of patients and employees.

loading..   20-Dec-2024
loading..   3 min read
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Cisco

Explore the shocking details of the Cisco data breach, where hackers exposed 2.9...

Hackers exposed a significant CISCO data breach, raising alarms across the threat landscape. The breach disrupted Cisco’s operations, forcing the company to redirect resources toward damage control and remediation. Industry leaders reacted with concern, emphasizing the breach's implications for supply chain security and trust in enterprise cybersecurity solutions. The incident not only tarnished Cisco’s reputation as a leader in cybersecurity but also highlighted systemic vulnerabilities within the industry, sparking widespread discussions on the need for more robust defenses. IntelBroker, a well-known figure in the cybercrime underworld, released 2.9GB of sensitive Cisco data on Breach Forums. This release is only the tip of the iceberg, with hackers claiming to have accessed a staggering 4.5TB of data due to an exposed and unprotected Cisco DevHub resource. ### **About the Breach: What We Know** The leaked 2.9GB of data reportedly includes sensitive information from key Cisco services and products. This type of data could be exploited by attackers to gain unauthorized access, disrupt services, or even launch sophisticated phishing attacks targeting Cisco’s clients and partners. Such data is critical because it provides attackers with a blueprint to potentially exploit Cisco’s infrastructure, disrupt its services, or compromise its clients’ systems. For instance, attackers could use the leaked information to identify vulnerabilities, create more effective malware, or launch phishing campaigns tailored to Cisco’s partners and customers. - **Cisco ISE (Identity Services Engine):** A platform for secure network access control and identity management. - **Cisco SASE (Secure Access Service Edge):** A cloud-delivered solution merging networking and security for remote access. - **Cisco Webex:** A popular collaboration platform for video conferencing and team messaging. - **Cisco Umbrella:** A DNS security solution to prevent access to malicious domains. - **Cisco IOS XE & XR:** Network operating systems powering Cisco’s advanced routers and switches. - **Cisco C9800-SW-iosxe-wlc.16.11.01:** Software for managing wireless networks on Cisco Catalyst 9800 platforms. ### **Timeline of the Incident** - **October 2024:** Hackers reportedly exploited a misconfigured, publicly accessible DevHub resource to download 4.5TB of Cisco’s sensitive data. - **October 14, 2024:** Hackread.com broke the story, revealing IntelBroker’s attempts to sell the stolen data, which allegedly included information from Verizon, AT&T, Microsoft, and others. - **October 18, 2024:** Cisco denied any compromise of its core systems, attributing the incident to an exposed JFrog token used in the DevHub. - **December 16, 2024:** IntelBroker released 2.9GB of the data on Breach Forums as proof of the breach’s legitimacy. ### **Hacker’s Motivation** IntelBroker’s move to leak this partial dataset is strategic, aimed at demonstrating the authenticity of the breach to potential buyers for the remaining 4.5TB dataset. Authenticity is vital in the cybercrime marketplace, as it establishes the credibility of stolen data, ensuring trust from potential buyers and enhancing the perceived value of the dataset. Hackers often use partial leaks to establish trust and build their reputation among potential customers. In the cybercrime marketplace, establishing credibility is crucial for hackers to attract serious buyers, as it ensures the stolen data's reliability and value. “Hopefully, this proves the legitimacy of the breach to others wanting to buy the full version,” stated IntelBroker on Breach Forums. ### **Cisco’s Response** Cisco continues to deny any compromise of core systems, maintaining that the breach stemmed from a misconfigured public-facing resource. Such misconfigurations often occur due to oversight during deployment, lack of robust access controls, or inadequate testing processes. For instance, a study by Gartner in 2023 revealed that over 25% of cloud security incidents resulted from misconfigurations, underscoring a critical challenge for businesses in the tech sector. Such vulnerabilities not only increase the risk of breaches but also highlight the urgent need for rigorous security protocols and preventive measures. For example, a 2023 report by IBM Security found that nearly 20% of all data breaches involved misconfigured cloud resources, highlighting the prevalence of this issue. They can be prevented by implementing thorough security audits, automated configuration management tools, and strict access policies. However, the leak’s content paints a different picture, raising questions about the effectiveness of Cisco’s internal security measures. ### **Involvement of IntelBroker** IntelBroker is no stranger to high-profile breaches. Their past exploits include: - **June 2024:** Claimed breach of Apple’s internal tools. - **May 2024:** Europol confirmed a breach of its systems. - **Other Notable Targets:** AMD, Space-Eyes, Tech in Asia, Facebook Marketplace, and Home Depot. The Cisco breach is part of a broader trend of exploiting misconfigured systems. Notable examples include incidents where ShinyHunters targeted unsecured S3 buckets, compromising millions of user records from platforms like Wishbone and Zoosk, and Nemesis exploited public-facing servers to access corporate databases. These breaches, similar to the Cisco incident, exposed critical data at a large scale, causing severe financial and reputational damage to the affected companies. They underscore the widespread consequences of overlooked vulnerabilities in public-facing resources, drawing direct parallels to the systemic issues revealed in the Cisco breach. These parallels highlight how vulnerabilities similar to Cisco's can have far-reaching consequences. These cases underline the widespread nature of such vulnerabilities and the critical need for proactive security measures. These incidents highlight the critical need for organizations to adopt stringent security practices to prevent such breaches.

loading..   19-Dec-2024
loading..   5 min read
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DVR

HIATUSRAT

FBI warns of HiatusRAT malware targeting vulnerable web cameras and DVRs, exploi...

The FBI has issued an urgent Private Industry Notification (PIN) warning regarding a new wave of malware attacks from **HiatusRAT**, a highly sophisticated and evolving cyber threat. The malware primarily targets vulnerable Internet of Things (IoT) devices, such as web cameras and Digital Video Recorders (DVRs), which are exposed to the internet. The attackers are focusing on Chinese-branded devices that have outdated firmware, unpatched security vulnerabilities, or have reached the end of their lifecycle. According to the FBI's alert, **HiatusRAT** has been actively scanning for these vulnerable devices across various countries, including the United States, Australia, Canada, New Zealand, and the United Kingdom. The FBI's warning sheds light on the evolving tactics used by cybercriminals to exploit known vulnerabilities and weak security measures. ## Technical Analysis ### Targeted Devices and Vulnerabilities The primary targets of **HiatusRAT** malware are **Hikvision** and **Xiongmai** web cameras and DVRs. These devices are typically deployed in surveillance systems and are notorious for having weak or default passwords, and vulnerable ports that are exposed to the internet. The threat actors scan for specific vulnerabilities and then exploit them to compromise the devices. Some of the known vulnerabilities exploited by HiatusRAT include: - **CVE-2017-7921**: A critical vulnerability affecting the video surveillance cameras. - **CVE-2018-9995**: A flaw in the device's firmware that can be leveraged to bypass authentication. - **CVE-2020-25078**: A remote code execution vulnerability in certain DVR systems. - **CVE-2021-33044**: A vulnerability in certain Chinese-branded IoT devices. - **CVE-2021-36260**: A known flaw in some IoT video surveillance systems. - **Weak Vendor-Supplied Passwords**: Attackers often exploit weak or default login credentials. These vulnerabilities, particularly the ones affecting Hikvision and Xiongmai devices, are well-documented and have been publicized in security bulletins for years. However, many devices have not received timely security patches, leaving them vulnerable to exploitation. ### Attack Tools: Ingram and Medusa To carry out their attacks, **HiatusRAT** actors use a combination of open-source tools, most notably **Ingram** and **Medusa**. - **Ingram**: This open-source vulnerability scanning tool is used by attackers to identify devices with web cameras exposed to the internet. Ingram scans for known vulnerabilities in these devices to exploit weaknesses in the firmware and software. - **Medusa**: This is a brute-force password-cracking tool that helps attackers gain unauthorized access to IoT devices by systematically testing different password combinations. By targeting weak or default passwords, the malware compromises the device and installs its payload. ### Exploited Ports The attackers focus on specific TCP ports that are commonly open on devices exposed to the internet. These include: - **23, 26, 554, 2323, 567, 5523, 8080, 9530, 56575** These ports are typically used for telnet and HTTP services, and when exposed to the internet without proper security controls, they become an easy entry point for cybercriminals. ## FBI Recommendations for Network Defenders In response to these ongoing attacks, the FBI has outlined several best practices for network defenders and system administrators: 1. **Limit Use of Vulnerable Devices**: Network administrators should limit the exposure of vulnerable IoT devices to the internet. If such devices must be used, they should be isolated from the rest of the network to prevent lateral movement in case of a breach. 2. **Update Firmware and Apply Security Patches**: Ensure that devices such as web cameras and DVRs are updated with the latest security patches. Devices that are no longer supported by the manufacturer should be replaced or disconnected from the network to prevent exploitation. 3. **Monitor for Suspicious Activity**: Regularly monitor network traffic for any suspicious activity, including unauthorized attempts to access or control IoT devices. 4. **Report Indications of Compromise (IOC)**: System administrators and cybersecurity professionals are urged to report any suspected incidents of compromise to the **FBI's Internet Crime Complaint Center (IC3)** or their local FBI field office. This helps track the spread of the malware and prevent further infections. ## Impact of HiatusRAT and Broader Threat Landscape ### Previous Attacks and Escalating Risk This wave of **HiatusRAT** attacks is part of an ongoing series of cyber operations aimed at compromising IoT devices. Prior to this latest campaign, HiatusRAT was involved in several high-profile attacks, including: - **A reconnaissance attack targeting a Department of Defense server.** - **Infections of over a hundred businesses from North America, Europe, and South America**, where **DrayTek Vigor VPN routers** were compromised to create a covert proxy network. These earlier campaigns highlight the evolving nature of HiatusRAT and its increasing focus on deploying additional payloads on infected devices, converting them into **SOCKS5 proxies**. This allows attackers to channel command-and-control (C2) server communication through compromised systems, making detection and mitigation more difficult. ### Link to Chinese Strategic Interests The FBI's analysis suggests that **HiatusRAT's** shifting targeting preferences and information-gathering activities align with **Chinese strategic interests**, as outlined in the **2023 Annual Threat Assessment** by the Office of the Director of National Intelligence (ODNI). This suggests that HiatusRAT may be part of broader geopolitical efforts to gather intelligence and maintain a covert presence in the target countries. ## Best Practices for Securing IoT Devices ### 1. **Device Isolation and Segmentation** One of the most effective ways to defend against these attacks is to isolate IoT devices from other critical parts of the network. By placing vulnerable devices in a separate network segment with strict access controls, the potential for lateral movement and data exfiltration is reduced. ### 2. **Disabling Unused Services** Telnet and HTTP services on IoT devices should be disabled if not required. If the services are necessary, they should be protected by strong authentication mechanisms and encrypted communications. ### 3. **Multi-Factor Authentication (MFA)** Where possible, enable multi-factor authentication (MFA) for accessing web cameras, DVRs, and other IoT devices. This adds an additional layer of protection against brute-force attacks. ### 4. **Regular Security Audits** Conduct regular security audits and vulnerability assessments to identify outdated firmware, exposed ports, and other weaknesses in IoT devices. ### 5. **User Education** Ensure that all users of IoT devices are educated about the importance of strong passwords and security best practices. Default passwords should be changed immediately upon installation, and weak passwords should be avoided.

loading..   18-Dec-2024
loading..   6 min read