CVE-2024-49033

Improper Input Validation (CWE-20)

Published: Nov 12, 2024

010
CVSS 7.5EPSS 0.12%High
CVE info copied to clipboard

Summary

Microsoft Word has a security feature bypass vulnerability associated with improper input validation. This vulnerability requires user interaction and can be exploited over a network, although the attack complexity is high. The vulnerability affects the confidentiality, integrity, and availability of the system with potentially high impacts.

Impact

If successfully exploited, this vulnerability could lead to severe consequences: 1. Arbitrary code execution: An attacker might be able to run malicious code on the affected system. 2. Data manipulation: The integrity of data processed by Microsoft Word could be compromised. 3. Denial of service: The availability of the system or Microsoft Word application could be disrupted. 4. Confidentiality breach: Sensitive information processed by Microsoft Word could be exposed. Given the high impact across confidentiality, integrity, and availability, this vulnerability poses a significant risk to affected systems. The CVSS v3.1 base score of 7.5 indicates a high severity level, which should be considered when prioritizing patching efforts.

Exploitation

There is no evidence that a public proof-of-concept exists. There is no evidence of proof of exploitation at the moment.

Patch

A patch for this vulnerability is available. Microsoft released the security update on November 12, 2024. It is crucial to apply this patch to all affected Microsoft Word installations as soon as possible.

Mitigation

1. Prioritize the application of the security update provided by Microsoft. 2. Implement the principle of least privilege for user accounts. 3. Conduct user awareness training about the risks of opening untrusted documents or clicking suspicious links. 4. Consider implementing application whitelisting to prevent unauthorized application execution. 5. Ensure all Microsoft Office products, especially Word, are kept up-to-date. 6. Implement network segmentation to limit potential spread in case of a compromise. 7. Set up monitoring for suspicious activities or unexpected behavior in Microsoft Word. 8. Strengthen input validation mechanisms across all applications and services. 9. Use security software with up-to-date signatures to detect and prevent potential exploits.

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C

Timeline

CVSS

A CVSS base score of 7.5 has been assigned.

Nov 12, 2024 at 5:55 PM / microsoft
First Article

Feedly found the first article mentioning CVE-2024-49033. See article

Nov 12, 2024 at 6:10 PM / Vulners.com RSS Feed
CVSS Estimate

Feedly estimated the CVSS score as HIGH

Nov 12, 2024 at 6:11 PM
CVE Assignment

NVD published the first details for CVE-2024-49033

Nov 12, 2024 at 6:15 PM
CVSS Estimate

Feedly estimated the CVSS score as MEDIUM

Nov 12, 2024 at 6:36 PM
EPSS

EPSS Score was set to: 0.12% (Percentile: 47.7%)

Nov 13, 2024 at 5:06 PM
EPSS

EPSS Score was set to: 0.11% (Percentile: 45.5%)

Nov 18, 2024 at 8:29 PM
Static CVE Timeline Graph

Affected Systems

Microsoft/365_apps
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Patches

Microsoft
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Links to Mitre Att&cks

T1562.003: Impair Command History Logging
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Attack Patterns

CAPEC-10: Buffer Overflow via Environment Variables
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References

Microsoft Word Security Feature Bypass Vulnerability
Exploitation of the vulnerability requires that a user open a specially crafted Word file. What kind of security feature could be bypassed by successfully exploiting this vulnerability?

News

Microsoft Word Security Feature Bypass Vulnerability
Exploitation of the vulnerability requires that a user open a specially crafted Word file. What kind of security feature could be bypassed by successfully exploiting this vulnerability?
2024-45 - Adobe, Mozilla, Canonical, Red Hat, Microsoft, Google, Jenkins, GitHub, Spring 🗂️
Advisory Week Week 45, 2024 National Cyber Awareness System CISA Releases Nineteen Industrial Control Systems Advisories CISA Adds Two Known Exploited Vulnerabilities to Catalog Palo Alto Networks Emphasizes Hardening Guidance Fortinet Releases Security Updates for Multiple Products Microsoft Releases November 2024 Security Updates Adobe Releases Security Updates for Multiple Products Ivanti Releases Security Updates for Multiple Products JCDC’s Collaborative Efforts Enhance Cybersecurity for the 2024 Olympic and Paralympic Games Citrix Releases Security Updates for NetScaler and Citrix Session Recording CISA Releases Five Industrial Control Systems Advisories CISA, FBI, NSA, and International Partners Release Joint Advisory on 2023 Top Routinely Exploited Vulnerabilities CISA Adds Five Known Exploited Vulnerabilities to Catalog Adobe Security Bulletins and Advisories Security updates available for Adobe Photoshop APSB24-89 Security Updates Available for Adobe Commerce APSB24-90 Security Updates Available for Adobe Illustrator APSB24-66 APSB24-87 Security Update Available for Adobe InDesign APSB24-88 Security Updates Available for Adobe Bridge APSB24-77 Security Updates Available for Adobe Audition APSB24-83 Mozilla Security Advisories Security Vulnerabilities fixed in Thunderbird 132.0.1 mfsa2024-62 Security Vulnerabilities fixed in Thunderbird 128.4.3 mfsa2024-61 Ubuntu Security Notices Linux kernel vulnerabilities: USN-7089-6 / USN-7088-5 / USN-7089-5 / USN-7110-1 / USN-7089-4 / USN-7100-2 / USN-7100-1 GD Graphics Library vulnerability: USN-7112-1 Go vulnerabilities: USN-7111-1 / USN-7109-1 Linux kernel vulnerability:
New assessment for topic: CVE-2024-49033 Topic description: "Microsoft Word Security Featur...
New assessment for topic: CVE-2024-49033 Topic description: "Microsoft Word Security Feature Bypass Vulnerability ..." "This is a 0-day vulnerability because Microsoft still can not do anything against this nonsense to input a VBS programming language into the Word program - macros options. ..." Link: https://attackerkb.com/assessments/0fe35db1-a90b-42da-b122-f2e47bd71715
Microsoft’s Security Update in November on High-Risk Vulnerabilities in Multiple Products
On November 13, NSFOCUS CERT detected that Microsoft released a security update patch for November, which fixed 89 security issues, including Windows, Microsoft SQL Server, Microsoft Office, Azure, Open Source Software, Microsoft Visual Studio, System Center and other widely used products, including high-risk vulnerabilities such as privilege escalation vulnerability and remote code execution vulnerability. Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation)
Patchday: Microsoft Office Updates (November 12, 2024)
The updates are available for the installable MSI version of Microsoft Office (the Click-to-Run packages receive the updates via other channels). According to this Microsoft website, the following security updates have been released:
See 44 more articles and social media posts

CVSS V3.1

Attack Vector:Network
Attack Complexity:High
Privileges Required:None
User Interaction:Required
Scope:Unchanged
Confidentiality:High
Integrity:High
Availability Impact:High

Categories

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