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Researchers Uncover Windows Flaws Granting Hackers Rootkit-Like Powers

Researchers Uncover Windows Flaws Granting Hackers Rootkit-Like Powers

Apr 22, 2024 Rootkit / Software Security
New research has found that the DOS-to-NT path conversion process could be exploited by threat actors to achieve rootkit-like capabilities to conceal and impersonate files, directories, and processes. "When a user executes a function that has a path argument in Windows, the DOS path at which the file or folder exists is converted to an NT path," SafeBreach security researcher Or Yair  said  in an analysis, which was  presented  at the Black Hat Asia conference last week. "During this conversion process, a known issue exists in which the function removes trailing dots from any path element and any trailing spaces from the last path element. This action is completed by most user-space APIs in Windows." These so-called MagicDot paths allow for rootkit-like functionality that's accessible to any unprivileged user, who could then weaponize them to carry out a series of malicious actions without having admin permissions and remain undetected. They include the ab
Critical Update: CrushFTP Zero-Day Flaw Exploited in Targeted Attacks

Critical Update: CrushFTP Zero-Day Flaw Exploited in Targeted Attacks

Apr 20, 2024 Vulnerability / Endpoint Security
Users of the CrushFTP enterprise file transfer software are being urged to update to the latest version following the discovery of a security flaw that has come under targeted exploitation in the wild. "CrushFTP v11 versions below 11.1 have a vulnerability where users can escape their VFS and download system files," CrushFTP  said  in an advisory released Friday. "This has been patched in v11.1.0." That said, customers who are operating their CrushFTP instances within a  DMZ  ( demilitarized zone ) restricted environment are protected against the attacks. Simon Garrelou of Airbus CERT has been credited with discovering and reporting the flaw. It has yet to be assigned a CVE identifier. Cybersecurity company CrowdStrike, in a post shared on Reddit, said it has observed an exploit for the flaw being used in the wild in a "targeted fashion." These intrusions are said to have mainly targeted U.S. entities, with the intelligence gathering activity suspe
AI Copilot: Launching Innovation Rockets, But Beware of the Darkness Ahead

AI Copilot: Launching Innovation Rockets, But Beware of the Darkness Ahead

Apr 15, 2024Secure Coding / Artificial Intelligence
Imagine a world where the software that powers your favorite apps, secures your online transactions, and keeps your digital life could be outsmarted and taken over by a cleverly disguised piece of code. This isn't a plot from the latest cyber-thriller; it's actually been a reality for years now. How this will change – in a positive or negative direction – as artificial intelligence (AI) takes on a larger role in software development is one of the big uncertainties related to this brave new world. In an era where AI promises to revolutionize how we live and work, the conversation about its security implications cannot be sidelined. As we increasingly rely on AI for tasks ranging from mundane to mission-critical, the question is no longer just, "Can AI  boost cybersecurity ?" (sure!), but also "Can AI  be hacked? " (yes!), "Can one use AI  to hack? " (of course!), and "Will AI  produce secure software ?" (well…). This thought leadership article is about the latter. Cydrill  (a
Hackers Exploit OpenMetadata Flaws to Mine Crypto on Kubernetes

Hackers Exploit OpenMetadata Flaws to Mine Crypto on Kubernetes

Apr 18, 2024 Container Security / Cryptocurrency
Threat actors are actively exploiting critical vulnerabilities in OpenMetadata to gain unauthorized access to Kubernetes workloads and leverage them for cryptocurrency mining activity. That's according to the Microsoft Threat Intelligence team, which  said  the flaws have been weaponized since the start of April 2024. OpenMetadata is an  open-source platform  that operates as a metadata management tool, offering a unified solution for data asset discovery, observability, and governance. The flaws in question – all discovered and credited to security researcher Alvaro Muñoz – are listed below - CVE-2024-28847  (CVSS score: 8.8) - A Spring Expression Language (SpEL) injection vulnerability in PUT /api/v1/events/subscriptions (fixed in version 1.2.4) CVE-2024-28848  (CVSS score: 8.8) - A SpEL injection vulnerability in GET /api/v1/policies/validation/condition/<expr> (fixed in version 1.2.4) CVE-2024-28253  (CVSS score: 8.8) - A SpEL injection vulnerability in PUT /api/v
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Today's Top 4 Identity Threat Exposures: Where To Find Them and How To Stop Them

websiteSilverfortIdentity Protection / Attack Surface
Explore the first ever threat report 100% focused on the prevalence of identity security gaps you may not be aware of.
Popular Rust Crate liblzma-sys Compromised with XZ Utils Backdoor Files

Popular Rust Crate liblzma-sys Compromised with XZ Utils Backdoor Files

Apr 12, 2024 Supply Chain Attack / Threat Intelligence
"Test files" associated with the  XZ Utils backdoor  have made their way to a Rust crate known as  liblzma-sys , new  findings  from Phylum reveal. liblzma-sys, which has been downloaded over 21,000 times to date, provides Rust developers with bindings to the liblzma implementation, an underlying library that is part of the  XZ Utils  data compression software. The impacted version in question is 0.3.2. "The current distribution (v0.3.2) on Crates.io contains the test files for XZ that contain the backdoor," Phylum  noted  in a GitHub issue raised on April 9, 2024. "The test files themselves are not included in either the .tar.gz nor the .zip tags  here on GitHub  and are only present in liblzma-sys_0.3.2.crate that is installed from Crates.io." Following responsible disclosure, the files in question ("tests/files/bad-3-corrupt_lzma2.xz" and "tests/files/good-large_compressed.lzma") have since been removed from liblzma-sys version
Fortinet Rolls Out Critical Security Patches for FortiClientLinux Vulnerability

Fortinet Rolls Out Critical Security Patches for FortiClientLinux Vulnerability

Apr 11, 2024 Vulnerability / Threat Mitigation
Fortinet has released patches to address a critical security flaw impacting FortiClientLinux that could be exploited to achieve arbitrary code execution. Tracked as CVE-2023-45590, the vulnerability carries a CVSS score of 9.4 out of a maximum of 10. "An Improper Control of Generation of Code ('Code Injection') vulnerability [CWE-94] in FortiClientLinux may allow an unauthenticated attacker to execute arbitrary code via tricking a FortiClientLinux user into visiting a malicious website," Fortinet  said  in an advisory. The shortcoming, which has been described as a case of remote code execution due to a "dangerous nodejs configuration," impacts the following versions - FortiClientLinux versions 7.0.3 through 7.0.4 and 7.0.6 through 7.0.10 (Upgrade to 7.0.11 or above) FortiClientLinux version 7.2.0 (Upgrade to 7.2.1 or above) Security researcher CataLpa from Dbappsecurity has been credited with discovering and reporting the vulnerability. Fortinet&
Malicious Code in XZ Utils for Linux Systems Enables Remote Code Execution

Malicious Code in XZ Utils for Linux Systems Enables Remote Code Execution

Apr 02, 2024 Firmware Security / Vulnerability
The malicious code inserted into the open-source library XZ Utils, a widely used package present in major Linux distributions, is also capable of facilitating remote code execution, a new analysis has revealed. The audacious supply chain compromise, tracked as  CVE-2024-3094  (CVSS score: 10.0), came to light last week when Microsoft engineer and PostgreSQL developer Andres Freund alerted to the  presence  of a  backdoor  in the data compression utility that gives remote attackers a way to sidestep secure shell authentication and gain complete access to an affected system. "I was doing some micro-benchmarking at the time, needed to quiesce the system to reduce noise," Freund said in a post shared on Mastodon. "Saw sshd processes were using a surprising amount of CPU, despite immediately failing because of wrong usernames etc." "Profiled sshd, showing lots of cpu time in liblzma, with perf unable to attribute it to a symbol. Got suspicious. Recalled that I
CISA Warns: Hackers Actively Attacking Microsoft SharePoint Vulnerability

CISA Warns: Hackers Actively Attacking Microsoft SharePoint Vulnerability

Mar 27, 2024 Threat Intelligence / Network Security
The U.S. Cybersecurity and Infrastructure Security Agency (CISA) has  added  a security flaw impacting Microsoft Sharepoint Server to its Known Exploited Vulnerabilities ( KEV ) catalog based on evidence of active exploitation in the wild. The vulnerability, tracked as CVE-2023-24955 (CVSS score: 7.2), is a critical remote code execution flaw that allows an authenticated attacker with Site Owner privileges to execute arbitrary code. "In a network-based attack, an authenticated attacker as a Site Owner could execute code remotely on the SharePoint Server," Microsoft  said  in an advisory. The flaw was addressed by Microsoft as part of its  Patch Tuesday updates  for May 2023. The development comes more than two months after CISA  added  CVE-2023-29357, a privilege escalation flaw in SharePoint Server, to its KEV catalog. It's worth pointing out that an exploit chain combining CVE-2023-29357 and CVE-2023-24955 was demonstrated by StarLabs SG at the Pwn2Own Vancouver h
CISA Alerts on Active Exploitation of Flaws in Fortinet, Ivanti, and Nice Products

CISA Alerts on Active Exploitation of Flaws in Fortinet, Ivanti, and Nice Products

Mar 26, 2024 Cyber Attack / Vulnerability
The U.S. Cybersecurity and Infrastructure Security Agency (CISA) on Monday  placed  three security flaws to its Known Exploited Vulnerabilities ( KEV ) catalog, citing evidence of active exploitation. The vulnerabilities added are as follows - CVE-2023-48788  (CVSS score: 9.3) - Fortinet FortiClient EMS SQL Injection Vulnerability CVE-2021-44529  (CVSS score: 9.8) - Ivanti Endpoint Manager Cloud Service Appliance (EPM CSA) Code Injection Vulnerability CVE-2019-7256  (CVSS score: 10.0) - Nice Linear eMerge E3-Series OS Command Injection Vulnerability The shortcoming impacting Fortinet FortiClient EMS  came to light  earlier this month, with the company describing it as a flaw that could allow an unauthenticated attacker to execute unauthorized code or commands via specifically crafted requests. Fortinet has since revised its advisory to confirm that it has been exploited in the wild, although no other details regarding the nature of the attacks are currently available. CVE-20
Ivanti Releases Urgent Fix for Critical Sentry RCE Vulnerability

Ivanti Releases Urgent Fix for Critical Sentry RCE Vulnerability

Mar 21, 2024 Vulnerability / Web Security
Ivanti has disclosed details of a critical remote code execution flaw impacting Standalone Sentry, urging customers to apply the fixes immediately to stay protected against potential cyber threats. Tracked as  CVE-2023-41724 , the vulnerability carries a CVSS score of 9.6. "An unauthenticated threat actor can execute arbitrary commands on the underlying operating system of the appliance within the same physical or logical network," the company  said . The flaw impacts all supported versions 9.17.0, 9.18.0, and 9.19.0, as well as older versions. The company said it has made available a patch (versions 9.17.1, 9.18.1, and 9.19.1) that can be downloaded via the standard download portal. It credited Vincent Hutsebaut, Pierre Vivegnis, Jerome Nokin, Roberto Suggi Liverani and Antonin B. of NATO Cyber Security Centre for "their collaboration on this issue." Ivanti emphasized that it's not aware of any customers affected by CVE-2023-41724, and  added  that "
Fortra Patches Critical RCE Vulnerability in FileCatalyst Transfer Tool

Fortra Patches Critical RCE Vulnerability in FileCatalyst Transfer Tool

Mar 18, 2024 Vulnerability / Threat Mitigation
Fortra has released details of a now-patched critical security flaw impacting its  FileCatalyst  file transfer solution that could allow unauthenticated attackers to gain remote code execution on susceptible servers. Tracked as CVE-2024-25153, the shortcoming carries a CVSS score of 9.8 out of a maximum of 10. "A directory traversal within the 'ftpservlet' of the FileCatalyst Workflow Web Portal allows files to be uploaded outside of the intended 'uploadtemp' directory with a specially crafted POST request," the company  said  in an advisory last week. "In situations where a file is successfully uploaded to web portal's DocumentRoot, specially crafted JSP files could be used to execute code, including web shells." The vulnerability, the company said, was first reported on August 9, 2023, and addressed two days later in FileCatalyst Workflow version 5.1.6 Build 114 without a CVE identifier. Fortra was  authorized  as a CVE Numbering Authorit
Researchers Detail Kubernetes Vulnerability That Enables Windows Node Takeover

Researchers Detail Kubernetes Vulnerability That Enables Windows Node Takeover

Mar 14, 2024 Container Security / Vulnerability
Details have been made public about a now-patched high-severity flaw in Kubernetes that could allow a malicious attacker to achieve remote code execution with elevated privileges under specific circumstances. "The vulnerability allows remote code execution with SYSTEM privileges on all Windows endpoints within a Kubernetes cluster," Akamai security researcher Tomer Peled  said . "To exploit this vulnerability, the attacker needs to apply malicious YAML files on the cluster." Tracked as CVE-2023-5528 (CVSS score: 7.2), the shortcoming impacts all versions of kubelet, including and after version 1.8.0. It was addressed as part of updates released on November 14, 2023, in the following versions - kubelet v1.28.4 kubelet v1.27.8 kubelet v1.26.11, and kubelet v1.25.16 "A security issue was discovered in Kubernetes where a user that can create pods and persistent volumes on Windows nodes may be able to escalate to admin privileges on those nodes," Kubernetes maintainers  said  in a
Fortinet Warns of Severe SQLi Vulnerability in FortiClientEMS Software

Fortinet Warns of Severe SQLi Vulnerability in FortiClientEMS Software

Mar 14, 2024 Vulnerability / Network Security
Fortinet has warned of a critical security flaw impacting its FortiClientEMS software that could allow attackers to achieve code execution on affected systems. "An improper neutralization of special elements used in an SQL Command ('SQL Injection') vulnerability [CWE-89] in FortiClientEMS may allow an unauthenticated attacker to execute unauthorized code or commands via specifically crafted requests," the company  said  in an advisory. The vulnerability, tracked as CVE-2023-48788, carries a CVSS rating of 9.3 out of a maximum of 10. It impacts the following versions - FortiClientEMS 7.2.0 through 7.2.2 (Upgrade to 7.2.3 or above) FortiClientEMS 7.0.1 through 7.0.10 (Upgrade to 7.0.11 or above) Horizon3.ai, which  plans  to release additional technical details and a proof-of-concept (PoC) exploit next week, said the shortcoming could be exploited to obtain remote code execution as SYSTEM on the server. Fortinet has credited Thiago Santana from the Forticlient
Microsoft's March Updates Fix 61 Vulnerabilities, Including Critical Hyper-V Flaws

Microsoft's March Updates Fix 61 Vulnerabilities, Including Critical Hyper-V Flaws

Mar 13, 2024 Patch Tuesday / Software Update
Microsoft on Tuesday released its monthly security update,  addressing 61 different security flaws  spanning its software, including two critical issues impacting Windows Hyper-V that could lead to denial-of-service (DoS) and remote code execution. Of the 61 vulnerabilities, two are rated Critical, 58 are rated Important, and one is rated Low in severity. None of the flaws are listed as publicly known or under active attack at the time of the release, but six of them have been tagged with an "Exploitation More Likely" assessment. The fixes are in addition to  17 security flaws  that have been patched in the company's Chromium-based Edge browser since the release of the  February 2024 Patch Tuesday updates . Topping the list of critical shortcomings are  CVE-2024-21407  and  CVE-2024-21408 , which affect Hyper-V and could result in remote code execution and a DoS condition, respectively. Microsoft's update also addresses privilege escalation flaws in the Azure Kub
Malware Campaign Exploits Popup Builder WordPress Plugin to Infect 3,900+ Sites

Malware Campaign Exploits Popup Builder WordPress Plugin to Infect 3,900+ Sites

Mar 12, 2024 WordPress / Website Security
A new malware campaign is leveraging a high-severity security flaw in the Popup Builder plugin for WordPress to inject malicious JavaScript code. According to Sucuri, the campaign has  infected more than 3,900 sites  over the past three weeks. "These attacks are orchestrated from domains less than a month old, with registrations dating back to February 12th, 2024," security researcher Puja Srivastava  said  in a report dated March 7. Infection sequences involve the exploitation of CVE-2023-6000, a security vulnerability in Popup Builder that could be exploited to create rogue admin users and install arbitrary plugins. The shortcoming was exploited as part of a  Balada Injector campaign  earlier this January, compromising no less than 7,000 sites. The latest set of attacks lead to the injection of malicious code, which comes in two different variants and is designed to redirect site visitors to other sites such as phishing and scam pages. WordPress site owners are reco
Proof-of-Concept Exploit Released for Progress Software OpenEdge Vulnerability

Proof-of-Concept Exploit Released for Progress Software OpenEdge Vulnerability

Mar 11, 2024 Network Security / Vulnerability
Technical specifics and a proof-of-concept (PoC) exploit have been made available for a recently disclosed critical security flaw in Progress Software OpenEdge Authentication Gateway and AdminServer, which could be potentially exploited to bypass authentication protections. Tracked as  CVE-2024-1403 , the vulnerability has a maximum severity rating of 10.0 on the CVSS scoring system. It impacts OpenEdge versions 11.7.18 and earlier, 12.2.13 and earlier, and 12.8.0.  "When the OpenEdge Authentication Gateway (OEAG) is configured with an OpenEdge Domain that uses the OS local authentication provider to grant user-id and password logins on operating platforms supported by active releases of OpenEdge, a vulnerability in the authentication routines may lead to unauthorized access on attempted logins," the company  said  in an advisory released late last month. "Similarly, when an AdminServer connection is made by OpenEdge Explorer (OEE) and OpenEdge Management (OEM), it also utilizes t
Cisco Issues Patch for High-Severity VPN Hijacking Bug in Secure Client

Cisco Issues Patch for High-Severity VPN Hijacking Bug in Secure Client

Mar 08, 2024 Network Security / Vulnerability
Cisco has released patches to address a high-severity security flaw impacting its Secure Client software that could be exploited by a threat actor to open a VPN session with that of a targeted user. The networking equipment company described the vulnerability, tracked as CVE-2024-20337 (CVSS score: 8.2), as allowing an unauthenticated, remote attacker to conduct a carriage return line feed ( CRLF ) injection attack against a user. Arising as a result of insufficient validation of user-supplied input, a threat actor could leverage the flaw to trick a user into clicking on a specially crafted link while establishing a VPN session. "A successful exploit could allow the attacker to execute arbitrary script code in the browser or access sensitive, browser-based information, including a valid SAML token," the company  said  in an advisory. "The attacker could then use the token to establish a remote access VPN session with the privileges of the affected user. Individual hosts and servi
VMware Alert: Uninstall EAP Now - Critical Flaw Puts Active Directory at Risk

VMware Alert: Uninstall EAP Now - Critical Flaw Puts Active Directory at Risk

Feb 21, 2024 Active Directory / Vulnerability
VMware is urging users to uninstall the deprecated Enhanced Authentication Plugin (EAP) following the discovery of a critical security flaw. Tracked as  CVE-2024-22245  (CVSS score: 9.6), the vulnerability has been described as an arbitrary authentication relay bug. "A malicious actor could trick a target domain user with EAP installed in their web browser into requesting and relaying service tickets for arbitrary Active Directory Service Principal Names (SPNs)," the company  said  in an advisory. EAP,  deprecated as of March 2021 , is a software package that's designed to allow direct login to vSphere's management interfaces and tools through a web browser. It's not included by default and is not part of vCenter Server, ESXi, or Cloud Foundation. Also discovered in the same tool is a session hijack flaw (CVE-2024-22250, CVSS score: 7.8) that could permit a malicious actor with unprivileged local access to a Windows operating system to seize a privileged EAP
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