privilege escalation | Breaking Cybersecurity News | The Hacker News

Cybersecurity researchers have disclosed a privilege escalation vulnerability impacting Google Cloud Platform's Cloud Functions service that an attacker could exploit to access other services and sensitive data in an unauthorized manner. Tenable has given the vulnerability the name ConfusedFunction. "An attacker could escalate their privileges to the Default Cloud Build Service Account and access numerous services such as Cloud Build, storage (including the source code of other functions), artifact registry and container registry," the exposure management company said in a statement. "This access allows for lateral movement and privilege escalation in a victim's project, to access unauthorized data and even update or delete it." Cloud Functions refers to a serverless execution environment that allows developers to create single-purpose functions that are triggered in response to specific Cloud events without the need to manage a server or update frame

Cybersecurity researchers have shed light on an adware module that purports to block ads and malicious websites, while stealthily offloading a kernel driver component that grants attackers the ability to run arbitrary code with elevated permissions on Windows hosts. The malware, dubbed HotPage, gets its name from the eponymous installer ("HotPage.exe"), according to new findings from ESET, which discovered the malware towards the end of 2023. The installer "deploys a driver capable of injecting code into remote processes, and two libraries capable of intercepting and tampering with browsers' network traffic," ESET researcher Romain Dumont said in a technical analysis published today. "The malware can modify or replace the contents of a requested page, redirect the user to another page, or open a new page in a new tab based on certain conditions." Besides leveraging its browser traffic interception and filtering capabilities to display game-relat

As a vCISO, you are responsible for your client's cybersecurity strategy and risk governance. This incorporates multiple disciplines, from research to execution to reporting. Recently, we published a comprehensive playbook for vCISOs, "Your First 100 Days as a vCISO – 5 Steps to Success" , which covers all the phases entailed in launching a successful vCISO engagement, along with recommended actions to take, and step-by-step examples.  Following the success of the playbook and the requests that have come in from the MSP/MSSP community, we decided to drill down into specific parts of vCISO reporting and provide more color and examples. In this article, we focus on how to create compelling narratives within a report, which has a significant impact on the overall MSP/MSSP value proposition.  This article brings the highlights of a recent guided workshop we held, covering what makes a successful report and how it can be used to enhance engagement with your cyber security clients.

Microsoft has released patches to address a total of 143 security flaws as part of its monthly security updates, two of which have come under active exploitation in the wild. Five out of the 143 flaws are rated Critical, 136 are rated Important, and four are rated Moderate in severity. The fixes are in addition to 33 vulnerabilities that have been addressed in the Chromium-based Edge browser over the past month. The two security shortcomings that have come under exploitation are below - CVE-2024-38080 (CVSS score: 7.8) - Windows Hyper-V Elevation of Privilege Vulnerability CVE-2024-38112 (CVSS score: 7.5) - Windows MSHTML Platform Spoofing Vulnerability "Successful exploitation of this vulnerability requires an attacker to take additional actions prior to exploitation to prepare the target environment," Microsoft said of CVE-2024-38112. "An attacker would have to send the victim a malicious file that the victim would have to execute." Check Point securi

Select versions of the OpenSSH secure networking suite are susceptible to a new vulnerability that can trigger remote code execution (RCE). The vulnerability, tracked as CVE-2024-6409 (CVSS score: 7.0), is distinct from CVE-2024-6387 (aka RegreSSHion) and relates to a case of code execution in the privsep child process due to a race condition in signal handling. It only impacts versions 8.7p1 and 8.8p1 shipped with Red Hat Enterprise Linux 9. Security researcher Alexander Peslyak, who goes by the alias Solar Designer, has been credited with discovering and reporting the bug, which was found during a review of CVE-2024-6387 after the latter was disclosed by Qualys earlier this month. "The main difference from CVE-2024-6387 is that the race condition and RCE potential are triggered in the privsep child process, which runs with reduced privileges compared to the parent server process," Peslyak said . "So the immediate impact is lower. However, there may be differenc

VMware has released updates to address critical flaws impacting Cloud Foundation, vCenter Server, and vSphere ESXi that could be exploited to achieve privilege escalation and remote code execution. The list of vulnerabilities is as follows - CVE-2024-37079 & CVE-2024-37080 (CVSS scores: 9.8) - Multiple heap-overflow vulnerabilities in the implementation of the DCE/RPC protocol that could allow a bad actor with network access to vCenter Server to achieve remote code execution by sending a specially crafted network packet CVE-2024-37081 (CVSS score: 7.8) - Multiple local privilege escalation vulnerabilities in VMware vCenter arising due to the misconfiguration of sudo that an authenticated local user with non-administrative privileges could exploit to obtain root permissions This is not the first time VMware has addressed shortcomings in the implementation of the DCE/RPC protocol. In October 2023, the Broadcom-owned virtualization services provider patched another criti

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) on Thursday added a security flaw impacting the Linux kernel to the Known Exploited Vulnerabilities ( KEV ) catalog, citing evidence of active exploitation. Tracked as CVE-2024-1086 (CVSS score: 7.8), the high-severity issue relates to a use-after-free bug in the netfilter component that permits a local attacker to elevate privileges from a regular user to root and possibly execute arbitrary code. "Linux kernel contains a use-after-free vulnerability in the netfilter: nf_tables component that allows an attacker to achieve local privilege escalation," CISA said. Netfilter is a framework provided by the Linux kernel that allows the implementation of various network-related operations in the form of custom handlers to facilitate packet filtering, network address translation, and port translation. The vulnerability was addressed in January 2024. That said, the exact nature of the attacks exploiting the fla

The MITRE Corporation has revealed that the cyber attack targeting the not-for-profit company towards late December 2023 by exploiting zero-day flaws in Ivanti Connect Secure (ICS) involved the threat actor creating rogue virtual machines (VMs) within its VMware environment. "The adversary created their own rogue VMs within the VMware environment, leveraging compromised vCenter Server access," MITRE researchers Lex Crumpton and Charles Clancy  said . "They wrote and deployed a JSP web shell (BEEFLUSH) under the vCenter Server's Tomcat server to execute a Python-based tunneling tool, facilitating SSH connections between adversary-created VMs and the ESXi hypervisor infrastructure." The motive behind such a move is to sidestep detection by obscuring their malicious activities from centralized management interfaces like vCenter and maintain persistent access while reducing the risk of being discovered. Details of the attack  emerged  last month when MITRE rev

Microsoft has addressed a total of  61 new security flaws  in its software as part of its Patch Tuesday updates for May 2024, including two zero-days which have been actively exploited in the wild. Of the 61 flaws, one is rated Critical, 59 are rated Important, and one is rated Moderate in severity. This is in addition to  30 vulnerabilities  resolved in the Chromium-based Edge browser over the past month, including two recently disclosed zero-days ( CVE-2024-4671  and  CVE-2024-4761 ) that have been tagged as exploited in attacks. The two security shortcomings that have been weaponized in the wild are below - CVE-2024-30040  (CVSS score: 8.8) - Windows MSHTML Platform Security Feature Bypass Vulnerability CVE-2024-30051  (CVSS score: 7.8) - Windows Desktop Window Manager ( DWM ) Core Library Elevation of Privilege Vulnerability "An unauthenticated attacker who successfully exploited this vulnerability could gain code execution through convincing a user to open a malicious

Cybersecurity researchers have disclosed multiple security flaws in Cinterion cellular modems that could be potentially exploited by threat actors to access sensitive information and achieve code execution. "These vulnerabilities include critical flaws that permit remote code execution and unauthorized privilege escalation, posing substantial risks to integral communication networks and IoT devices foundational to industrial, healthcare, automotive, financial and telecommunications sectors," Kaspersky  said . Cinterion modems were originally developed by Gemalto before the business was  acquired  by Telit from Thales as part of a deal announced in July 2022. The findings were  presented  at the OffensiveCon held in Berlin on May 11. The list of eight flaws is as follows - CVE-2023-47610  (CVSS score: 8.1) - A buffer overflow vulnerability that could allow a remote unauthenticated attacker to execute arbitrary code on the targeted system by sending a specially crafted S

״Defenders think in lists, attackers think in graphs," said John Lambert from Microsoft, distilling the fundamental difference in mindset between those who defend IT systems and those who try to compromise them. The traditional approach for defenders is to list security gaps directly related to their assets in the network and eliminate as many as possible, starting with the most critical. Adversaries, in contrast, start with the end goal in mind and focus on charting the path toward a breach. They will generally look for the weakest link in the security chain to break in and progress the attack from there all the way to the crown jewels. Security teams must embrace the attacker's perspective to ensure their organization's cybersecurity defenses are adequate. Drawing an analogy to a daily life example, the standard way to defend our house from intrusion is to ensure all the doors are locked. But to validate that your house is protected requires testing your security like a burgla

Cybersecurity researchers have discovered a new information stealer targeting Apple macOS systems that's designed to set up persistence on the infected hosts and act as a spyware. Dubbed  Cuckoo  by Kandji, the malware is a universal Mach-O binary that's capable of running on both Intel- and Arm-based Macs. The exact distribution vector is currently unclear, although there are indications that the binary is hosted on sites like dumpmedia[.]com, tunesolo[.]com, fonedog[.]com, tunesfun[.]com, and tunefab[.]com that claim to offer free and paid versions of applications dedicated to ripping music from streaming services and converting it into the MP3 format. The disk image file downloaded from the websites is responsible for spawning a bash shell to gather host information and ensuring that the compromised machine is not located in Armenia, Belarus, Kazakhstan, Russia, Ukraine. The malicious binary is executed only if the locale check is successful. It also establishes persist

The Russia-linked nation-state threat actor tracked as  APT28  weaponized a security flaw in the Microsoft Windows Print Spooler component to deliver a previously unknown custom malware called GooseEgg. The post-compromise tool, which is said to have been used since at least June 2020 and possibly as early as April 2019, leveraged a now-patched flaw that allowed for privilege escalation (CVE-2022-38028, CVSS score: 7.8). It was  addressed  by Microsoft as part of updates released in October 2022, with the U.S. National Security Agency (NSA) credited for reporting the flaw at the time. According to new findings from the tech giant's threat intelligence team,  APT28  – also called Fancy Bear and Forest Blizzard (formerly Strontium) – weaponized the bug in attacks targeting Ukrainian, Western European, and North American government, non-governmental, education, and transportation sector organizations. "Forest Blizzard has used the tool [...] to exploit the CVE-2022-38028 vu