Windows Common Log File System Driver Elevation of Privilege Vulnerability
CVE-2024-49138

7.8HIGH

Key Information:

Vendor
Microsoft
Status
Windows 10 Version 1809
Windows Server 2019
Windows Server 2019 (server Core Installation)
Windows Server 2022
Vendor
CVE Published:
12 December 2024

Badges

📈 Trended📈 Score: 1,990👾 Exploit Exists🦅 CISA Reported📰 News Worthy

What is CVE-2024-49138?

CVE-2024-49138 is an elevation of privilege vulnerability affecting the Windows Common Log File System Driver. This driver is a critical component of the Windows operating system, facilitating the logging and retrieval of system events and data. When exploited, this vulnerability can allow an attacker to gain elevated privileges on the system, potentially leading to unauthorized access and control over sensitive parts of the operating system. This could enable malicious individuals to compromise the integrity, confidentiality, and availability of affected systems, posing severe risks to organizations that rely on this software for their operations.

Technical Details

The vulnerability resides within the Windows Common Log File System Driver, a component integral to logging operations in Windows. An attacker employs a specific method to exploit this flaw, which typically involves executing specially crafted code that manipulates how the system handles privilege levels. If successful, this exploitation enables the attacker to elevate their privileges, bypassing standard security restrictions. As a result, they can execute arbitrary code in the context of a more privileged account, making it a significant threat to system security.

Impact of the Vulnerability

  1. Unauthorized Access and Control: The vulnerability allows attackers to gain elevated privileges, potentially compromising sensitive data and system integrity. Once an attacker has this level of access, they can execute arbitrary commands and manipulate system configurations.

  2. Data Breaches: Exploiting this vulnerability can lead to unauthorized access to confidential information, resulting in severe data breaches. Organizations might face regulatory implications and reputational damage if sensitive information is leaked or misused.

  3. Increased Malware Spread: With elevated privileges, attackers can facilitate the installation of additional malware, which can further compromise the system or network. This could lead to the deployment of ransomware, escalating the impact on the organization and potentially leading to significant financial loss.

CISA Reported

CISA provides regional cyber and physical services to support security and resilience across the United States. CISA monitor the most dangerious vulnerabilities and have identifed as being exploited but is not known by the CISA to be used in ransomware campaigns. This is subject to change at pace

The CISA's recommendation is: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

Affected Version(s)

Windows 10 Version 1507 32-bit Systems 10.0.10240.0 < 10.0.10240.20857

Windows 10 Version 1607 32-bit Systems 10.0.14393.0 < 10.0.14393.7606

Windows 10 Version 1809 32-bit Systems 10.0.17763.0 < 10.0.17763.6659

News Articles

favicon imageHelp Net Security

Week in review: Microsoft fixes exploited 0-day, top cybersecurity books for your holiday gift list - Help Net Security

Here’s an overview of some of last week’s most interesting news, articles, interviews and videos: Microsoft fixes exploited zero-day (CVE-2024-49138) On

3 weeks ago

favicon imageForbes

New Windows 0Day Attack Strikes—Microsoft Warns Millions To Update Now

As a zero-day security vulnerability posing significant risk to users is confirmed as under active exploitation—the DHS and Microsoft have urged millions to update now.

3 weeks ago

favicon imageKrebs on Security

Patch Tuesday, December 2024 Edition

Microsoft today released updates to plug at least 70 security holes in Windows and Windows software, including one vulnerability that is already being exploited in active attacks. The zero-day seeing exploitation involves CVE-2024-49138, a security weakness in the Windows Common…

4 weeks ago

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE...
vendor-advisory

CVSS V3.1

Score:
7.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • 📈

    Vulnerability started trending

  • Vulnerability published

  • 👾

    Exploit known to exist

  • 🦅

    CISA Reported

  • 📰

    First article discovered by Computer Weekly

  • Vulnerability Reserved

Collectors

NVD DatabaseMitre DatabaseCISA DatabaseMicrosoft Feed8 News Article(s)
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