Description
Salt vulnerable to directory traversal attack in file receiving method
EPSS Score:
0%
Comprehensive Technical Analysis of EUVD-2024-54682
1. Vulnerability Assessment and Severity Evaluation
The vulnerability described in EUVD-2024-54682 pertains to a directory traversal attack in the file receiving method of Salt, a configuration management and orchestration tool. The CVSS (Common Vulnerability Scoring System) base score of 9.6 indicates a critical severity level. The vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N breaks down as follows:
- Attack Vector (AV): Network (N) - The vulnerability is exploitable over the network.
- Attack Complexity (AC): Low (L) - The attack requires minimal skill or resources.
- Privileges Required (PR): Low (L) - The attacker needs low-level privileges to exploit the vulnerability.
- User Interaction (UI): None (N) - No user interaction is required for the attack to succeed.
- Scope (S): Changed (C) - The vulnerability affects a different security scope.
- Confidentiality (C): High (H) - The vulnerability results in a high impact on confidentiality.
- Integrity (I): High (H) - The vulnerability results in a high impact on integrity.
- Availability (A): None (N) - The vulnerability does not impact availability.
Given these metrics, the vulnerability is highly critical and poses a significant risk to systems using the affected versions of Salt.
2. Potential Attack Vectors and Exploitation Methods
A directory traversal attack allows an attacker to access files and directories that are stored outside the intended directory. In this case, the vulnerability in Salt's file receiving method can be exploited by:
- Crafting Malicious Requests: An attacker can send specially crafted requests to the Salt master or minion that include directory traversal sequences (e.g.,
../../). - Accessing Sensitive Files: By exploiting this vulnerability, an attacker can read sensitive files, such as configuration files, credentials, or other critical data stored on the system.
- Modifying System Files: Depending on the permissions, an attacker might also be able to modify system files, leading to further compromise.
3. Affected Systems and Software Versions
The vulnerability affects the following versions of Salt:
- Salt 3006.x: All versions prior to 3006.12
- Salt 3007.x: All versions prior to 3007.4
Organizations using these versions of Salt are at risk and should prioritize updating to the patched versions.
4. Recommended Mitigation Strategies
To mitigate the risk associated with this vulnerability, the following actions are recommended:
- Update to Patched Versions: Immediately update to Salt versions 3006.12 or 3007.4, which include the fix for this vulnerability.
- Implement Network Segmentation: Segregate Salt masters and minions from other critical systems to limit the potential impact of an attack.
- Monitor and Log: Enhance monitoring and logging to detect any unusual file access patterns that may indicate an attempted exploit.
- Access Controls: Ensure that only authorized users and systems have access to the Salt infrastructure.
- Regular Audits: Conduct regular security audits and vulnerability assessments to identify and address potential security gaps.
5. Impact on European Cybersecurity Landscape
The European cybersecurity landscape is highly interconnected, with many organizations relying on configuration management tools like Salt for automation and orchestration. This vulnerability poses a significant risk to the integrity and confidentiality of data managed by these tools. Given the critical nature of the vulnerability, it is essential for European organizations to take immediate action to mitigate the risk. Failure to do so could result in data breaches, unauthorized access, and potential disruption of services.
6. Technical Details for Security Professionals
For security professionals, the following technical details are pertinent:
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Vulnerability Identification: The vulnerability is identified by CVE-2024-38824 and EUVD-2024-54682.
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References:
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Patch Details: The patch addresses the directory traversal issue by implementing stricter validation and sanitization of file paths in the file receiving method.
By understanding these details, security professionals can better assess the risk, implement appropriate mitigations, and ensure the security of their Salt deployments.