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Cybersecurity researchers have exposed a wide variety of techniques adopted by an advanced malware downloader called  GuLoader  to evade security software. "New shellcode anti-analysis technique attempts to thwart researchers and hostile environments by scanning entire process memory for any virtual machine (VM)-related strings," CrowdStrike researchers Sarang Sonawane and Donato Onofri  said  in a technical write-up published last week. GuLoader, also called  CloudEyE , is a Visual Basic Script (VBS) downloader that's used to distribute remote access trojans such as Remcos on infected machines. It was first detected in the wild in 2019. In November 2021, a JavaScript malware strain dubbed RATDispenser  emerged  as a conduit for dropping GuLoader by means of a Base64-encoded VBScript dropper. Recent GuLoader samples unearthed by CrowdStrike have been found to exhibit a three-stage process wherein the VBScript is designed to deliver a next-stage that performs anti-a

Cybersecurity researchers have detailed two security flaws in the JavaScript-based blogging platform known as  Ghost , one of which could be abused to elevate privileges via specially crafted HTTP requests. Ghost is an open source blogging platform that's used in more than 52,600 live websites, most of them located in the U.S., the U.K., German, China, France, Canada, and India. Tracked as CVE-2022-41654 (CVSS score: 9.6), the authentication bypass vulnerability allows unprivileged users (i.e., members) to make unauthorized modifications to newsletter settings. Cisco Talos, which  discovered  the shortcoming, said it could enable a member to change the system-wide default newsletter that all users are subscribed to by default. Even worse, the ability of a site administrator to inject JavaScript into the newsletter by default could be exploited to trigger the creation of arbitrary administrator accounts when attempting to edit the newsletter. "This gives unprivileged us

Cybersecurity researchers have discovered a new malicious package on the Python Package Index (PyPI) repository that impersonates a software development kit (SDK) for SentinelOne, a major cybersecurity company, as part of a campaign dubbed  SentinelSneak . The package, named  SentinelOne  and now taken down, is said to have been published between December 8 and 11, 2022, with nearly two dozen versions pushed in quick succession over a period of two days. It claims to offer an easier method to access the  company's APIs , but harbors a malicious backdoor that's engineered to amass sensitive information from development systems, including access credentials, SSH keys, and configuration data. What's more, the threat actor has also been observed releasing two more packages with similar naming variations –  SentinelOne-sdk  and  SentinelOneSDK  – underscoring the  continued threats  lurking in open source repositories. "The SentinelOne imposter package is just the lat

A critical security flaw has been disclosed in Amazon Elastic Container Registry (ECR) Public Gallery that could have been potentially exploited to stage a multitude of attacks, according to cloud security firm Lightspin. "By exploiting this vulnerability, a malicious actor could delete all images in the Amazon ECR Public Gallery or update the image contents to inject malicious code," Gafnit Amiga, director of security research at Lightspin, said in a report shared with The Hacker News. "This malicious code is executed on any machine that pulls and runs the image, whether on user's local machines, Kubernetes clusters or cloud environments." ECR is a  container image registry service  managed by Amazon Web Services, enabling users to package code as Docker images and deploy the artifacts in a scalable manner. Public repositories hosted on ECR are displayed in what's called the  ECR Public Gallery . "By default, your account has read and write acce

Microsoft on Tuesday disclosed the intrusion activity aimed at Indian power grid entities earlier this year likely involved the exploitation of security flaws in a now-discontinued web server called Boa . The tech behemoth's cybersecurity division  said  the vulnerable component poses a "supply chain risk that may affect millions of organizations and devices." The findings build on a prior report  published  by Recorded Future in April 2022, which delved into a sustained campaign orchestrated by suspected China-linked adversaries to strike critical infrastructure organizations in India. The cybersecurity firm attributed the attacks to a previously undocumented threat cluster called Threat Activity Group 38. While the Indian government described the attacks as unsuccessful "probing attempts," China denied it was behind the campaign. The connections to China stem from the use of a modular backdoor dubbed  ShadowPad , which is known to be shared among several

Introduction In many ways, the software supply chain is similar to that of manufactured goods, which we all know has been largely impacted by a global pandemic and shortages of raw materials.  However, in the IT world, it is not shortages or pandemics that have been the main obstacles to overcome in recent years, but rather attacks aimed at using them to harm hundreds or even thousands of victims simultaneously. If you've heard of a cyber attack between 2020 and today, it's likely that the software supply chain played a role.  When we talk about an attack on the software supply chain, we are actually referring to two successive attacks: one that targets a supplier, and one that targets one or more downstream users in the chain, using the first as a vehicle. In this article, we will dive into the mechanisms and risks of the software supply chain by looking at a typical vulnerability of the modern development cycle: the presence of personal identifying information, or "

Software vulnerabilities are a major threat to organizations today. The cost of these threats is significant, both financially and in terms of reputation. Vulnerability management and patching can easily get out of hand when the number of vulnerabilities in your organization is in the hundreds of thousands of vulnerabilities and tracked in inefficient ways, such as using Excel spreadsheets or multiple reports, especially when many teams are involved in the organization. Even when a process for patching is in place, organizations still struggle to effectively patch vulnerabilities in their assets. This is generally because teams look at the severity of vulnerabilities and tend to apply patches to vulnerabilities in the following severity order: critical > high > medium > low > info. The following sections explain why this approach is flawed and how it can be improved. Why is Patching Difficult? While it is well known that vulnerability patching is extremely important, it

If one word could sum up the 2021 infosecurity year (well, actually three), it would be these: "supply chain attack".  A software supply chain attack happens when hackers manipulate the code in third-party software components to compromise the 'downstream' applications that use them. In 2021, we have seen a dramatic rise in such attacks: high profile security incidents like the SolarWinds, Kaseya, and  Codecov  data breaches have shaken enterprise's confidence in the security practices of third-party service providers. What does this have to do with secrets, you might ask? In short, a lot. Take the Codecov case (we'll go back to it quickly): it is a textbook example to illustrate how hackers leverage hardcoded credentials to gain initial access into their victims' systems and harvest more secrets down the chain.  Secrets-in-code remains one of the most overlooked vulnerabilities in the application security space, despite being a priority target in hack

The National Institute of Standards and Technology (NIST) on Thursday released an updated cybersecurity guidance for managing risks in the supply chain, as it increasingly emerges as a lucrative attack vector. "It encourages organizations to consider the vulnerabilities not only of a finished product they are considering using, but also of its components — which may have been developed elsewhere — and the journey those components took to reach their destination," NIST said in a statement. The new  directive  outlines  major security controls and practices  that entities should adopt to identify, assess, and respond to risks at different stages of the supply chain, including the possibility of malicious functionality, flaws in third-party software, insertion of counterfeit hardware, and poor manufacturing and development practices. The development follows an Executive Order issued by the U.S. President on " Improving the Nation's Cybersecurity (14028) " las

Networking equipment maker Cisco has released security updates to address three high-severity vulnerabilities in its products that could be exploited to cause a denial-of-service (DoS) condition and take control of affected systems. The first of the three flaws,  CVE-2022-20783  (CVSS score: 7.5), affects Cisco TelePresence Collaboration Endpoint (CE) Software and Cisco RoomOS Software, and stems from a lack of proper input validation, allowing an unauthenticated, remote attacker to send specially crafted traffic to the devices. "A successful exploit could allow the attacker to cause the affected device to either reboot normally or reboot into maintenance mode, which could result in a DoS condition on the device," the company  noted  in an advisory. Credited with discovering and reporting the flaw is the U.S. National Security Agency (NSA). The issue has been addressed in Cisco TelePresence CE Software versions 9.15.10.8 and 10.11.2.2. CVE-2022-20773  (CVSS score: 7.5),

Unpatched software is a computer code containing known security weaknesses. Unpatched vulnerabilities refer to weaknesses that allow attackers to leverage a known security bug that has not been patched by running malicious code. Software vendors write additions to the codes, known as "patches," when they come to know about these application vulnerabilities to secure these weaknesses. Adversaries often probe into your software, looking for unpatched systems and attacking them directly or indirectly. It is risky to run unpatched software. This is because attackers get the time to become aware of the  software's unpatched vulnerabilities  before a patch emerges. A  report  found that unpatched vulnerabilities are the most consistent and primary ransomware attack vectors. It was recorded that in 2021,  65  new vulnerabilities arose that were connected to ransomware. This was observed to be a twenty-nine percent growth compared to the number of vulnerabilities in 2020.  Gr

Mozilla has rolled out fixes to address a critical security weakness in its cross-platform Network Security Services ( NSS ) cryptographic library that could be potentially exploited by an adversary to crash a vulnerable application and even execute arbitrary code. Tracked as CVE-2021-43527, the flaw affects NSS versions prior to 3.73 or 3.68.1 ESR, and concerns a  heap overflow  vulnerability when verifying digital signatures such as  DSA  and  RSA-PSS  algorithms that are encoded using the  DER  binary format. Credited with reporting the issue is Tavis Ormandy of Google Project Zero, who codenamed it " BigSig ." "NSS (Network Security Services) versions prior to 3.73 or 3.68.1 ESR are vulnerable to a heap overflow when handling DER-encoded DSA or RSA-PSS signatures," Mozilla  said  in an advisory published Wednesday. "Applications using NSS for handling signatures encoded within CMS, S/MIME, PKCS #7, or PKCS #12 are likely to be impacted." NSS is a

Cisco Systems has released  security updates  to address vulnerabilities in multiple Cisco products that could be exploited by an attacker to log in as a root user and take control of vulnerable systems. Tracked as  CVE-2021-40119 , the vulnerability has been rated 9.8 in severity out of a maximum of 10 on the CVSS scoring system and stems from a weakness in the SSH authentication mechanism of Cisco Policy Suite. "An attacker could exploit this vulnerability by connecting to an affected device through SSH," the networking major explained in an advisory, adding "A successful exploit could allow the attacker to log in to an affected system as the root user." Cisco said the bug was discovered during internal security testing. Cisco Policy Suite Releases 21.2.0 and later will also automatically create new SSH keys during installation, while requiring a manual process to change the default SSH keys for devices being upgraded from 21.1.0. Also addressed by Cisco a

A widely used NPM package called ' Pac-Resolver ' for the JavaScript programming language has been remediated with a fix for a high-severity remote code execution vulnerability that could be abused to run malicious code inside Node.js applications whenever HTTP requests are sent.  The flaw, tracked as  CVE-2021-23406 , has a severity rating of 8.1 on the CVSS vulnerability scoring system and affects Pac-Resolver versions before 5.0.0. A Proxy Auto-Configuration ( PAC ) file is a JavaScript function that determines whether web browser requests should be routed directly to the destination or forwarded to a web proxy server for a given hostname. PAC files are how proxy rules are distributed in enterprise environments. "This package is used for PAC file support in  Pac-Proxy-Agent , which is used in turn in  Proxy-Agent , which then used all over the place as the standard go-to package for HTTP proxy auto-detection and configuration in Node.js," Tim Perry  said  in a