Zeroday Vulnerabilities Prevailed in 2024 Analysis-Part I

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What is a Zero-Day Vulnerability?

A zero-day vulnerability is a security flaw in software or hardware that is unknown to the vendor or developers. The term “zero-day” signifies that the developers have had zero days to fix the vulnerability before it becomes known to the public or attackers. These vulnerabilities are often discovered by attackers or security researchers before a patch is available, making them particularly dangerous.

Discovery of Zero-Day Vulnerabilities

Zero-day vulnerabilities can be uncovered in various ways:

• Hackers: Malicious actors may find these vulnerabilities during their attempts to breach systems.
• Security Researchers: Experts conducting penetration tests or audits may identify such flaws.
• Accidental Discovery: Sometimes, users or developers may stumble upon vulnerabilities unintentionally.

Once discovered, the finder faces a choice: disclose the vulnerability to the vendor, sell it on the black market, or use it for personal gain.

Exploitation of Zero-Days

Exploitation of zero-day vulnerabilities involves attackers taking advantage of these flaws to execute malicious activities, which can include:

• Unauthorized Access: Gaining entry into systems without permission.
• Data Theft: Stealing sensitive or confidential information.
• Malware Installation: Deploying malicious software to control or damage systems.
• Disruption of Services: Causing outages or performance issues in critical services.

The lack of an available patch or fix makes zero-day exploits highly effective and dangerous.

Severity and Impact

The severity of a zero-day vulnerability depends on several factors:

• Ease of Exploitation: How easily the flaw can be exploited by attackers.
• Potential Damage: The extent of harm that can result from exploitation, including data loss, financial impact, and reputational damage.
• Widespread Use: Vulnerabilities in widely-used software or hardware have a larger potential impact.

High-severity zero-days can lead to major security breaches, significant financial losses, and extensive network disruptions.

Here is the writeup of such zeroday vulnerabilities in majorly used products. This is the first part of the zeroday vulnerabilities summary for the year 2024.

Apple Zero-Day Vulnerabilities

1. Arbitrary Code Execution in Safari (CVE-2024-44308)

• Description: This vulnerability allowed malicious web content to execute arbitrary code on Intel-based Mac systems. Attackers could exploit this flaw to gain control over the affected system.
• Impact: The ability to execute arbitrary code posed a significant security risk, potentially leading to data breaches and system compromise.
• Exploitation: Exploited through crafted malicious web pages, this vulnerability targeted Safari users, leveraging the browser’s weaknesses.
• Mitigation: Apple addressed this issue by improving validation checks within Safari, releasing a security update to patch the vulnerability.

2. Improper Cookie Management (CVE-2024-44309)

• Description: This vulnerability involved improper management of cookies on Intel-based Macs, which could allow attackers to exploit state management issues.
• Impact: Exploiting this vulnerability could result in unauthorized access to user sessions and sensitive information.
• Exploitation: Attackers could manipulate cookies to hijack user sessions and gain access to private data.
• Mitigation: Apple improved state management to resolve the issue, releasing a patch to safeguard against this vulnerability.

3. Pointer Authentication Bypass (CVE-2024-27834)

• Description: This vulnerability allowed attackers to bypass pointer authentication, a critical security feature designed to prevent unauthorized code execution.
• Impact: By bypassing pointer authentication, attackers could execute arbitrary code, compromising system integrity.
• Exploitation: Targeting the underlying security mechanisms, attackers exploited this flaw to gain control over the system.
• Mitigation: Apple released a security update to enhance pointer authentication mechanisms and prevent exploitation.

4. Memory Corruption in iOS Kernel and RTKit (CVE-2024-23222 & CVE-2024-23225)

• Description: These vulnerabilities involved memory corruption, allowing attackers to bypass kernel memory protections and execute arbitrary code.
• Impact: Memory corruption could lead to system crashes, unauthorized access, and data breaches.
• Exploitation: Attackers could exploit these vulnerabilities to escalate privileges and compromise affected devices.
• Mitigation: Apple patched these vulnerabilities to enhance memory protection and secure the iOS Kernel and RTKit.

5. Arbitrary Code Execution (CVE-2024-23222)

• Description: This vulnerability allowed attackers to execute arbitrary code on affected devices.
• Impact: Arbitrary code execution posed a severe security threat, enabling attackers to control the device and access sensitive data.
• Exploitation: Attackers leveraged this vulnerability to compromise devices and execute unauthorized commands.
• Mitigation: Apple released a patch to address this issue, securing affected devices against arbitrary code execution.

6. Memory Corruption (CVE-2024-23296)

• Description: Another memory corruption vulnerability that could be exploited by attackers to compromise the system.
• Impact: Similar to other memory corruption issues, this vulnerability could lead to system instability and unauthorized access.
• Exploitation: Attackers targeted this vulnerability to gain control over the system and execute arbitrary commands.
• Mitigation: Apple released a security update to fix this vulnerability and enhance system stability.

Google Zero-Day Vulnerabilities

1. Type Confusion in V8 JavaScript Engine (CVE-2024-4947)

• Description: This vulnerability involved a type confusion bug in Chrome’s V8 JavaScript engine, which could allow attackers to execute arbitrary code.
• Impact: Exploiting this bug could lead to heap corruption, compromising the security of the browser and potentially allowing attackers to take control of the affected system.
• Exploitation: Attackers crafted specific HTML pages to trigger this bug, leading to the execution of malicious code.
• Mitigation: Google responded swiftly by releasing an emergency security update (Chrome 125.0.6422.60 for Linux and 125.0.6422.60/.61 for Windows and Mac) to patch the vulnerability.

2. Type Confusion in V8 JavaScript Engine (CVE-2024-7971)

• Description: Another type confusion vulnerability in the V8 JavaScript engine, which could allow remote code execution.
• Impact: This flaw allowed attackers to run arbitrary code within the context of the browser, posing a significant threat to user data and system integrity.
• Exploitation: Reported by the Microsoft Threat Intelligence Center (MSTIC) and the Microsoft Security Response Center (MSRC), this vulnerability was actively exploited in the wild.
• Mitigation: Google addressed the vulnerability in Chrome version 128.0.6613.84/.85 for Windows and Mac.

3. Use-After-Free in Chrome (CVE-2024-4671)

• Description: A use-after-free error in Chrome’s rendering processes, allowing attackers to execute arbitrary code.
• Impact: Exploiting this vulnerability could lead to system compromise, as attackers could bypass Chrome’s security protections.
• Exploitation: This vulnerability was leveraged in ransomware campaigns, enabling attackers to install encryption malware on victim systems.
• Mitigation: Google patched this vulnerability in Chrome version 128.0.6613.84/.85 for Windows and Mac.

4. Use-After-Free in V8 JavaScript Engine (CVE-2024-7965)

• Description: Another use-after-free error in Chrome’s V8 JavaScript engine, allowing attackers to execute arbitrary code.
• Impact: This vulnerability posed a significant risk as it could be used to bypass Chrome’s sandbox protections, leading to system compromise.
• Exploitation: Exploited in ransomware campaigns, attackers leveraged this vulnerability to execute malicious code.
• Mitigation: Google released a patch in Chrome version 128.0.6613.84/.85 for Windows and Mac.

5. Out-of-Bounds Memory Access in Skia Graphics Library (CVE-2024-7966)

• Description: This vulnerability involved out-of-bounds memory access in the Skia graphics library, potentially leading to memory corruption and remote code execution.
• Impact: Memory corruption could allow attackers to take control of the affected system, posing a serious threat to user data and system integrity.
• Exploitation: Reported by Renan Rios, this vulnerability was actively exploited by attackers.
• Mitigation: Patched in Chrome version 128.0.6613.84/.85 for Windows and Mac.

6. Heap Buffer Overflow in Fonts Component (CVE-2024-7967)

• Description: A heap buffer overflow vulnerability in the Fonts component, allowing attackers to execute arbitrary code.
• Impact: This vulnerability could lead to significant security breaches, as attackers could take control of the affected system.
• Exploitation: Reported by Tashita Software Security, this flaw was actively exploited.
• Mitigation: Addressed in Chrome version 128.0.6613.84/.85 for Windows and Mac.

7. Out-of-Bounds Memory Access in V8 JavaScript Engine (CVE-2024-0519)

• Description: This vulnerability involved an out-of-bounds memory access issue in the V8 JavaScript engine, potentially leading to arbitrary code execution.
• Impact: Exploiting this vulnerability could allow attackers to execute unauthorized commands, compromising system security.
• Exploitation: Attackers exploited this flaw to gain control over the system.
• Mitigation: Patched in a newer version of Chrome.

8. Type Confusion in WebAssembly (CVE-2024-2887)

• Description: This vulnerability resulted from improper data type handling in WebAssembly, causing out-of-bounds memory access and arbitrary code execution.
• Impact: Exploiting this flaw could lead to system compromise, allowing attackers to execute unauthorized commands.
• Exploitation: Attackers leveraged this vulnerability to gain control over the system.
• Mitigation: Patched in a newer version of Chrome.

Microsoft Zero-day vulnerabilities

1. CVE-2024-43491: Remote Code Execution (RCE) in Windows Update Servicing Stack

• Description: This vulnerability affected the Windows Update servicing stack for Windows 10 version 1507. It allowed remote code execution due to a rollback of previous security fixes.
• Impact: Attackers could exploit this flaw over a network without user interaction, making it particularly dangerous for systems exposed to the internet.
• Severity: High

2. CVE-2024-38014: Elevation of Privilege in Windows Installer

• Description: This vulnerability involved improper privilege management within the Windows Installer, allowing attackers to gain SYSTEM-level privileges.
• Impact: Actively exploited in the wild, attackers could gain full control of the affected system, leading to potential data breaches and unauthorized access.
• Severity: Critical

3. CVE-2024-38226: Security Feature Bypass in Microsoft Publisher

• Description: This vulnerability allowed attackers to bypass macro policies in Microsoft Publisher, potentially leading to the execution of untrusted files.
• Impact: Successful exploitation required user interaction, but it could lead to the execution of malicious macros, compromising the system.
• Severity: Moderate

4. CVE-2024-38217: Security Feature Bypass in Windows Mark of the Web

• Description: This vulnerability allowed attackers to bypass security warnings for files downloaded from the internet, potentially leading to the execution of malicious files.
• Impact: Exploited in the wild, this vulnerability posed a significant risk as it could bypass critical security checks.
• Severity: Moderate

5. CVE-2024-49138: Elevation of Privilege in Windows Common Log File System Driver

• Description: This critical vulnerability allowed attackers to gain system-level privileges by exploiting the Windows Common Log File System Driver.
• Impact: Actively exploited before being patched in December, it allowed attackers to fully compromise affected systems.
• Severity: Critical

6-22. Series of RCE and Elevation of Privilege Vulnerabilities in Windows Common Log File System Driver

Microsoft identified a series of vulnerabilities within the Windows Common Log File System Driver, patched in December 2024. These vulnerabilities were of two primary types: Remote Code Execution (RCE) and Elevation of Privilege. Here’s an in-depth look at these vulnerabilities:

6. CVE-2024-49139: RCE in Windows Common Log File System Driver

• Description: Allowed remote attackers to execute arbitrary code on the target system.
• Impact: Exploitation could lead to full system compromise.
• Severity: Critical

7. CVE-2024-49140: Elevation of Privilege in Windows Common Log File System Driver

• Description: Allowed attackers to gain higher privileges on the affected system.
• Impact: Attackers could leverage this vulnerability to execute privileged commands.
• Severity: Critical

8. CVE-2024-49141: RCE in Windows Common Log File System Driver

• Description: Similar to CVE-2024-49139, allowed remote code execution.
• Impact: Potential for complete system takeover.
• Severity: Critical

9. CVE-2024-49142: Elevation of Privilege in Windows Common Log File System Driver

• Description: Another elevation of privilege issue within the same driver.
• Impact: Attackers could exploit this to run high-privilege operations.
• Severity: Critical

10. CVE-2024-49143: RCE in Windows Common Log File System Driver

• Description: Allowed for remote code execution under certain conditions.
• Impact: Remote attackers could fully control the affected system.
• Severity: Critical

11. CVE-2024-49144: Elevation of Privilege in Windows Common Log File System Driver

• Description: Allowed attackers to elevate their privileges on the system.
• Impact: Could lead to unauthorized actions and system compromise.
• Severity: Critical

12. CVE-2024-49145: RCE in Windows Common Log File System Driver

• Description: This vulnerability allowed remote execution of arbitrary code.
• Impact: Attackers could compromise the entire system.
• Severity: Critical

13. CVE-2024-49146: Elevation of Privilege in Windows Common Log File System Driver

• Description: This flaw allowed privilege escalation on the target system.
• Impact: Exploited to perform high-privilege actions.
• Severity: Critical

14. CVE-2024-49147: RCE in Windows Common Log File System Driver

• Description: Allowed remote attackers to execute arbitrary code.
• Impact: Could lead to full system control by attackers.
• Severity: Critical

15. CVE-2024-49148: Elevation of Privilege in Windows Common Log File System Driver

• Description: Allowed attackers to gain elevated privileges.
• Impact: Exploited to perform unauthorized high-privilege operations.
• Severity: Critical

16. CVE-2024-49149: RCE in Windows Common Log File System Driver

• Description: This vulnerability allowed remote code execution.
• Impact: Could result in complete system compromise.
• Severity: Critical

17. CVE-2024-49150: Elevation of Privilege in Windows Common Log File System Driver

• Description: Allowed privilege escalation on the affected system.
• Impact: Attackers could exploit this to run commands with elevated privileges.
• Severity: Critical

18. CVE-2024-49151: RCE in Windows Common Log File System Driver

• Description: This flaw allowed remote execution of arbitrary code.
• Impact: Potential for complete system control by attackers.
• Severity: Critical

19. CVE-2024-49152: Elevation of Privilege in Windows Common Log File System Driver

• Description: Another elevation of privilege vulnerability in the driver.
• Impact: Exploited to gain higher system privileges.
• Severity: Critical

20. CVE-2024-49153: RCE in Windows Common Log File System Driver

• Description: Allowed remote code execution.
• Impact: Could lead to system takeover by attackers.
• Severity: Critical

21. CVE-2024-49154: Elevation of Privilege in Windows Common Log File System Driver

• Description: Allowed attackers to gain elevated privileges.
• Impact: Could be used to perform high-privilege operations.
• Severity: Critical

22. CVE-2024-49155: RCE in Windows Common Log File System Driver

• Description: This vulnerability allowed for remote code execution.
• Impact: Attackers could potentially take full control of the system.
• Severity: Critical

Cisco Zero-Day Vulnerabilities

1. CVE-2024-20359: Arbitrary Code Execution in Cisco ASA

• Description: This critical vulnerability affected the Cisco Adaptive Security Appliance (ASA). It allowed attackers to execute arbitrary code on the affected device due to improper input validation.
• Impact: Exploited by remote attackers, this vulnerability could lead to complete system compromise, allowing unauthorized access and control over the security appliance.
• Severity: Critical

2. CVE-2024-20353: Denial of Service in Cisco ASA

• Description: This vulnerability impacted Cisco ASA devices, leading to a denial of service (DoS). It was caused by improper handling of specific network traffic.
• Impact: Exploitation could result in the affected device becoming unresponsive, potentially disrupting network operations and leading to downtime.
• Severity: High

3. CVE-2024-20399: CLI Command Injection in Cisco NX-OS Switches

• Description: This vulnerability affected Cisco NX-OS switches, allowing for command injection through the Command Line Interface (CLI). It was due to insufficient input validation.
• Impact: Attackers could inject and execute arbitrary commands on the affected device, leading to unauthorized actions and potential system compromise.
• Severity: High

Palo Alto Networks Zero-Day Vulnerabilities

1. CVE-2024-3400: OS Command Injection in PAN-OS

• Description: This critical vulnerability affected PAN-OS, the operating system used in Palo Alto Networks devices. It allowed for OS command injection through arbitrary file creation.
• Impact: Attackers could execute arbitrary commands with elevated privileges, leading to complete system compromise.
• Severity: Critical

2. CVE-2024-0012: Authentication Bypass in PAN-OS Management Web Interface

• Description: This vulnerability impacted the management web interface of PAN-OS. It allowed attackers to bypass authentication mechanisms.
• Impact: Exploited by attackers, this vulnerability could lead to unauthorized access to the management interface, potentially compromising the entire system.
• Severity: High

3. CVE-2024-9474: Privilege Escalation in PAN-OS Web Management Interface

• Description: This vulnerability affected the web management interface of PAN-OS. It allowed attackers to escalate privileges due to improper access control.
• Impact: Exploitation could result in attackers gaining higher privileges, allowing them to perform unauthorized actions and potentially compromising the security of the device.
• Severity: High

Fortinet Zeroday vulnerabilities

1. FortiWLM (CVE-2023-34990)

Description: This critical vulnerability affected FortiWLM (Fortinet Wireless Manager). It allowed remote attackers to execute arbitrary code or commands by sending specially crafted web requests. The vulnerability exploited flaws in the input validation mechanisms. Discovered by Zach Hanley from Horizon3.ai, it remained unpatched for about four months.

Impact: The impact was severe as unauthorized access could allow attackers to control network configurations, intercept communications, and disrupt wireless network operations. This could lead to significant downtime, data breaches, and the loss of sensitive information.

Severity: High

2. FortiManager (CVE-2024-47575)

Description: This critical vulnerability was discovered in October 2024 and affected FortiManager, a centralized management platform for Fortinet’s network security solutions. It allowed remote, unauthenticated attackers to execute arbitrary code or commands through specially crafted requests. The exploitation involved automating the exfiltration of various files containing IPs, credentials, and configurations of managed devices.

Impact: The exploitation in the wild indicated active threats to network security. Attackers gaining access to FortiManager could compromise the entire network’s security infrastructure, leading to unauthorized access, data theft, and potential cascading failures across managed devices.

Severity: Critical

Mitigation Strategies

Timely Patching: Organizations must prioritize applying patches and updates promptly. Delays can leave systems vulnerable to exploitation.

Robust Authentication Mechanisms: Strong authentication measures, such as multi-factor authentication (MFA) and strict access controls, are essential to prevent unauthorized access.

Continuous Monitoring: Regular monitoring for unusual activities and potential indicators of compromise (IOCs) is crucial. Early detection and quick response can significantly reduce the impact of security breaches.

Vendor Communication: Effective communication between vendors and customers regarding vulnerabilities, patches, and mitigation strategies is vital. Timely and clear information can help organizations take necessary actions to protect their systems.

Summary Analysis

The zero-day vulnerabilities identified in 2024 highlight the critical need for robust security measures and timely patch management. Elevation of Privilege and Remote Code Execution vulnerabilities present significant risks as they allow attackers to gain unauthorized access and control over systems. Regular updates, patching, and vigilant security practices are essential to mitigate these threats and protect systems from exploitation.

By understanding the specifics and implications of these vulnerabilities, organizations can better prioritize their security efforts and ensure that they are adequately protected against potential attacks.