CVE-2025-0411 is a high-severity vulnerability that affects 7-Zip and the Active IQ Unified Manager. This vulnerability allows remote attackers to bypass the Mark-of-the-Web protection mechanism on affected installations of 7-Zip. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.
The specific flaw exists within the handling of archived files. When extracting files from a crafted archive that bears the Mark-of-the-Web, 7-Zip does not propagate the Mark-of-the-Web to the extracted files. An attacker can leverage this vulnerability to execute arbitrary code in the context of the current user.
Organizations should prioritize patching immediately. Given the significance of this vulnerability, failure to address it may lead to unauthorized access and potential data compromise.
With a CVSS score of 7, this vulnerability poses a serious threat to affected systems, especially in environments where 7-Zip is widely used. Organizations must remain vigilant and implement the necessary patches as soon as they become available.
Vulnerability Details
The 7-Zip Mark-of-the-Web Bypass Vulnerability is classified under CWE-693. It affects all versions of 7-Zip prior to vendor patch. The CVSS vector is CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H with a base score of 7, which indicates a high severity level.
Technical Analysis
The root cause of this vulnerability lies in the improper handling of archived files. The attack vector is local, meaning that an attacker needs to have a local context to exploit this vulnerability. It has high attack complexity and requires user interaction, as the user must either visit a malicious webpage or open a malicious file.
The vulnerability can lead to high confidentiality, integrity, and availability impacts, as attackers may execute arbitrary code in the context of the user. This underscores the importance of user awareness and education regarding unsafe file handling practices.
Risk & Impact Analysis
Risk to organizations includes the potential for unauthorized code execution, which can lead to data breaches and system compromises. The blast radius for this vulnerability is significant, given the popularity of 7-Zip across various sectors. Organizations should address this vulnerability in their priority patch cycle, especially those that handle sensitive data.
Given that this vulnerability is included in the Known Exploited Vulnerabilities (KEV) catalog, organizations must act swiftly to mitigate risks associated with it.
Exploitation Status
Signal | Status |
|---|---|
Known Exploit | Yes |
Public PoC | Yes |
Actively Exploited | Yes |
Ransomware Use | No |
Affected Versions
All versions of 7-Zip prior to the vendor patch are affected by this vulnerability. Organizations are advised to check their current version and plan for an upgrade.
Mitigation & Remediation
Organizations should apply the latest patches from the vendor immediately to mitigate this vulnerability. If an upgrade is not possible, consider alternative workarounds, such as disabling the extraction feature for untrusted files.
For further guidance on effective security practices, organizations can refer to penetration testing services to identify potential weaknesses in their security posture.
Detection Guidance
Organizations should monitor their systems for unusual file extraction activities, especially from archived files. Log indicators and behavioral anomalies should be analyzed to detect exploitation attempts.
AppSecure Threat Intelligence Insight
The long-term significance of this vulnerability is that it highlights the importance of web protection mechanisms in file handling applications. Security teams should learn from this incident to improve their defenses against similar vulnerabilities.
Organizations should also consider reviewing their policies regarding file downloads and extractions, ensuring that users are aware of the risks associated with opening files from unknown sources.
For further reading on improving security measures, consider exploring penetration testing methodology and the best practices for securing applications.
Additionally, reviewing the vulnerability management program can help organizations proactively identify and remediate vulnerabilities.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
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