Vulnerability | Breaking Cybersecurity News | The Hacker News

Cybersecurity researchers have identified a number of security shortcomings in photovoltaic system management platforms operated by Chinese companies Solarman and Deye that could enable malicious actors to cause disruption and power blackouts. "If exploited, these vulnerabilities could allow an attacker to control inverter settings that could take parts of the grid down, potentially causing blackouts," Bitdefender researchers said in an analysis published last week. The vulnerabilities have been addressed by Solarman and Deye as of July 2024, following responsible disclosure on May 22, 2024. The Romanian cybersecurity vendor, which analyzed the two PV monitoring and management platforms, said they suffer from a number of issues that, among others, could result in account takeover and information disclosure. A brief description of the issues is listed below - Full Account Takeover via Authorization Token Manipulation Using the /oauth2-s/oauth/token API endpoint  Deye...

As many as 10 security flaws have been uncovered in Google's Quick Share data transfer utility for Android and Windows that could be assembled to trigger remote code execution (RCE) chain on systems that have the software installed. "The Quick Share application implements its own specific application-layer communication protocol to support file transfers between nearby, compatible devices," SafeBreach Labs researchers Or Yair and Shmuel Cohen said in a technical report shared with The Hacker News. "By investigating how the protocol works, we were able to fuzz and identify logic within the Quick Share application for Windows that we could manipulate or bypass." The result is the discovery of 10 vulnerabilities – nine affecting Quick Share for Windows and one impacting Android – that could be fashioned into an "innovative and unconventional" RCE attack chain to run arbitrary code on Windows hosts. The RCE attack chain has been codenamed QuickShell ...

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...

Microsoft on Thursday disclosed four medium-severity security flaws in the open-source OpenVPN software that could be chained to achieve remote code execution (RCE) and local privilege escalation (LPE). "This attack chain could enable attackers to gain full control over targeted endpoints, potentially resulting in data breaches, system compromise, and unauthorized access to sensitive information," Vladimir Tokarev of the Microsoft Threat Intelligence Community said . That said, the exploit, presented by Black Hat USA 2024, requires user authentication and an advanced understanding of OpenVPN's inner workings. The flaws affect all versions of OpenVPN prior to version 2.6.10 and 2.5.10. The list of vulnerabilities is as follows - CVE-2024-27459 - A stack overflow vulnerability leading to a Denial-of-service (DoS) and LPE in Windows CVE-2024-24974 - Unauthorized access to the "\\openvpn\\service" named pipe in Windows, allowing an attacker to remotely inte...

Cybersecurity researchers have uncovered weaknesses in Sonos smart speakers that could be exploited by malicious actors to clandestinely eavesdrop on users. The vulnerabilities "led to an entire break in the security of Sonos's secure boot process across a wide range of devices and remotely being able to compromise several devices over the air," NCC Group security researchers Alex Plaskett and Robert Herrera said . Successful exploitation of one of these flaws could allow a remote attacker to obtain covert audio capture from Sonos devices by means of an over-the-air attack. They impact all versions prior to Sonos S2 release 15.9 and Sonos S1 release 11.12, which were shipped in October and November 2023. The findings were presented at Black Hat USA 2024. A description of the two security defects is as follows - CVE-2023-50809 - A vulnerability in the Sonos One Gen 2 Wi-Fi stack that does not properly validate an information element while negotiating a WPA2 four-wa...

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...

Microsoft said it is developing security updates to address two loopholes that it said could be abused to stage downgrade attacks against the Windows update architecture and replace current versions of the operating system files with older versions. The vulnerabilities are listed below - CVE-2024-38202 (CVSS score: 7.3) - Windows Update Stack Elevation of Privilege Vulnerability CVE-2024-21302 (CVSS score: 6.7) - Windows Secure Kernel Mode Elevation of Privilege Vulnerability Credited with discovering and reporting the flaws is SafeBreach Labs researcher Alon Leviev, who presented the findings at Black Hat USA 2024 and DEF CON 32 . CVE-2024-38202, which is rooted in the Windows Backup component, allows an "attacker with basic user privileges to reintroduce previously mitigated vulnerabilities or circumvent some features of Virtualization Based Security (VBS)," the tech giant said. It, however, noted that an attacker attempting to leverage the flaw would have to c...

A critical security flaw impacting Progress Software WhatsUp Gold is seeing active exploitation attempts, making it essential that users move quickly to apply the latest. The vulnerability in question is CVE-2024-4885 (CVSS score: 9.8), an unauthenticated remote code execution bug impacting versions of the network monitoring application released before 2023.1.3. "The WhatsUp.ExportUtilities.Export.GetFileWithoutZip allows execution of commands with iisapppool\\nmconsole privileges," the company said in an advisory released in late June 2024. According to security researcher Sina Kheirkhah of the Summoning Team, the flaw resides in the implementation of the GetFileWithoutZip method, which fails to perform adequate validation of user-supplied paths prior to its use. An attacker could take advantage of this behavior to execute code in the context of the service account. A proof-of-concept (PoC) exploit has since been released by Kheirkhah. The Shadowserver Foundation s...

Cybersecurity researchers have shed light on a novel Linux kernel exploitation technique dubbed SLUBStick that could be exploited to elevate a limited heap vulnerability to an arbitrary memory read-and-write primitive. "Initially, it exploits a timing side-channel of the allocator to perform a cross-cache attack reliably," a group of academics from the Graz University of Technology said [PDF]. "Concretely, exploiting the side-channel leakage pushes the success rate to above 99% for frequently used generic caches." Memory safety vulnerabilities impacting the Linux kernel have limited capabilities and are a lot more challenging to exploit owing to security features like Supervisor Mode Access Prevention ( SMAP ), Kernel address space layout randomization ( KASLR ), and kernel control flow integrity ( kCFI ). While software cross-cache attacks have been devised as a way to counter kernel hardening strategies like coarse-grained heap separation, studies have show...

Cybersecurity researchers have disclosed details of security flaws in the Roundcube webmail software that could be exploited to execute malicious JavaScript in a victim's web browser and steal sensitive information from their account under specific circumstances. "When a victim views a malicious email in Roundcube sent by an attacker, the attacker can execute arbitrary JavaScript in the victim's browser," cybersecurity company Sonar said in an analysis published this week. "Attackers can abuse the vulnerability to steal emails, contacts, and the victim's email password as well as send emails from the victim's account." Following responsible disclosure on June 18, 2024, the three vulnerabilities have been addressed in Roundcube versions 1.6.8 and 1.5.8 released on August 4, 2024. The list of vulnerabilities is as follows - CVE-2024-42008 - A cross-site scripting flaw via a malicious email attachment served with a dangerous Content-Type head...

Google has addressed a high-severity security flaw impacting the Android kernel that it said has been actively exploited in the wild. The vulnerability, tracked as CVE-2024-36971, has been described as a case of remote code execution impacting the kernel. "There are indications that CVE-2024-36971 may be under limited, targeted exploitation," the tech giant noted in its monthly Android security bulletin for August 2024. As is typically the case, the company did not share any additional specifics on the nature of the cyber attacks exploiting the flaw or attribute the activity to a particular threat actor or group. Google's own Pixel line is also impacted by the bug, according to its Pixel update bulletin . That said, Clement Lecigne of Google's Threat Analysis Group (TAG) has been credited with reporting the flaw, suggesting that it's likely being exploited by commercial spyware vendors to infiltrate Android devices in narrowly targeted attacks. The Augus...

A new zero-day pre-authentication remote code execution vulnerability has been disclosed in the Apache OFBiz open-source enterprise resource planning (ERP) system that could allow threat actors to achieve remote code execution on affected instances. Tracked as CVE-2024-38856 , the flaw has a CVSS score of 9.8 out of a maximum of 10.0. It affects Apache OFBiz versions prior to 18.12.15. "The root cause of the vulnerability lies in a flaw in the authentication mechanism," SonicWall, which discovered and reported the shortcoming, said in a statement. "This flaw allows an unauthenticated user to access functionalities that generally require the user to be logged in, paving the way for remote code execution." CVE-2024-38856 is also a patch bypass for CVE-2024-36104 , a path traversal vulnerability that was addressed in early June with the release of 18.12.14. SonicWall described the flaw as residing in the override view functionality that exposes critical endpoi...

Cybersecurity researchers have uncovered design weaknesses in Microsoft's Windows Smart App Control and SmartScreen that could enable threat actors to gain initial access to target environments without raising any warnings. Smart App Control ( SAC ) is a cloud-powered security feature introduced by Microsoft in Windows 11 to block malicious, untrusted, and potentially unwanted apps from being run on the system. In cases where the service is unable to make a prediction about the app, it checks if it's signed or has a valid signature so as to be executed. SmartScreen, which was released alongside Windows 10, is a similar security feature that determines whether a site or a downloaded app is potentially malicious. It also leverages a reputation-based approach for URL and app protection. "Microsoft Defender SmartScreen evaluates a website's URLs to determine if they're known to distribute or host unsafe content," Redmond notes in its documentation. "I...

A high-severity security bypass vulnerability has been disclosed in Rockwell Automation ControlLogix 1756 devices that could be exploited to execute common industrial protocol ( CIP ) programming and configuration commands. The flaw, which is assigned the CVE identifier CVE-2024-6242 , carries a CVSS v3.1 score of 8.4. "A vulnerability exists in the affected products that allows a threat actor to bypass the Trusted Slot feature in a ControlLogix controller," the U.S. Cybersecurity and Infrastructure Security Agency (CISA) said in an advisory. "If exploited on any affected module in a 1756 chassis, a threat actor could potentially execute CIP commands that modify user projects and/or device configuration on a Logix controller in the chassis." Operational technology security company Claroty, which discovered and reported the vulnerability, said it developed a technique that made it possible to bypass the trusted slot feature and send malicious commands to the pr...

A recently patched security flaw impacting VMware ESXi hypervisors has been actively exploited by "several" ransomware groups to gain elevated permissions and deploy file-encrypting malware. The attacks involve the exploitation of CVE-2024-37085 (CVSS score: 6.8), an Active Directory integration authentication bypass that allows an attacker to obtain administrative access to the host. "A malicious actor with sufficient Active Directory (AD) permissions can gain full access to an ESXi host that was previously configured to use AD for user management by re-creating the configured AD group ('ESXi Admins' by default) after it was deleted from AD," Broadcom-owned VMware noted in an advisory released in late June 2024. In other words, escalating privileges on ESXi to the administrator was as simple as creating a new AD group named "ESX Admins" and adding any user to it, or renaming any group in the domain to "ESX Admins" and adding a user...

Cybersecurity company Acronis is warning that a now-patched critical security flaw impacting its Cyber Infrastructure (ACI) product has been exploited in the wild. The vulnerability, tracked as CVE-2023-45249 (CVSS score: 9.8), concerns a case of remote code execution that stems from the use of default passwords. The flaw impacts the following versions of Acronis Cyber Infrastructure (ACI) - < build 5.0.1-61 < build 5.1.1-71 < build 5.2.1-69 < build 5.3.1-53, and  < build 5.4.4-132 It has been addressed in versions 5.4 update 4.2, 5.2 update 1.3, 5.3 update 1.3, 5.0 update 1.4, and 5.1 update 1.2 released in late October 2023. There are currently no details on how the vulnerability is being weaponized in real-world cyber attacks and the identity of the threat actors that may be exploiting it. However, the Swiss-headquartered company acknowledged reports of active exploitation in an updated advisory last week. "This vulnerability is known to be exploi...

Cybersecurity researchers are sounding the alarm over an ongoing campaign that's leveraging internet-exposed Selenium Grid services for illicit cryptocurrency mining. Cloud security firm Wiz is tracking the activity under the name SeleniumGreed . The campaign, which is targeting older versions of Selenium (3.141.59 and prior), is believed to be underway since at least April 2023 . "Unbeknownst to most users, Selenium WebDriver API enables full interaction with the machine itself, including reading and downloading files, and running remote commands," Wiz researchers Avigayil Mechtinger, Gili Tikochinski, and Dor Laska said . "By default, authentication is not enabled for this service. This means that many publicly accessible instances are misconfigured and can be accessed by anyone and abused for malicious purposes." Selenium Grid, part of the Selenium automated testing framework, enables parallel execution of tests across multiple workloads, different bro...

Progress Software is urging users to update their Telerik Report Server instances following the discovery of a critical security flaw that could result in remote code execution. The vulnerability, tracked as CVE-2024-6327 (CVSS score: 9.9), impacts Report Server version 2024 Q2 (10.1.24.514) and earlier. "In Progress Telerik Report Server versions prior to 2024 Q2 (10.1.24.709), a remote code execution attack is possible through an insecure deserialization vulnerability," the company said in an advisory. Deserialization flaws occur when an application reconstructs untrusted data that an attacker has control over without adequate validation in place, resulting in the execution of unauthorized commands. Progress Software said the flaw has been addressed in version 10.1.24.709. As temporary mitigation, it's recommended to change the user for the Report Server Application Pool to one with limited permission. Administrators can check if their servers are vulnerable ...

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...