CVE-2021-40324
Python vulnerability analysis and mitigation

Overview

CVE-2021-40324 is a security vulnerability discovered in Cobbler versions before 3.3.0. The vulnerability allows attackers to perform arbitrary file write operations via the uploadlogdata functionality (NVD, CVE). The issue was disclosed on October 4, 2021, and affects all versions of Cobbler prior to version 3.3.0.

Technical details

The vulnerability has been assigned a CVSS v3.1 base score of 7.5 (High) with the vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N. This indicates that the vulnerability can be exploited over the network, requires low attack complexity, needs no privileges or user interaction, and primarily impacts system integrity. The vulnerability is classified as CWE-434 (Unrestricted Upload of File with Dangerous Type) (NVD).

Impact

The vulnerability allows attackers to perform arbitrary file write operations on the affected system, which could lead to system compromise through malicious file uploads. The CVSS score indicates high impact on system integrity, though there is no direct impact on confidentiality or availability (NVD).

Mitigation and workarounds

The vulnerability has been fixed in Cobbler version 3.3.0. Users are advised to upgrade to this version or later to mitigate the risk. The fix includes improved validation of file uploads and security enhancements to prevent arbitrary file write operations (Cobbler Release).

Community reactions

The vulnerability was acknowledged as a significant security issue in the Cobbler 3.3.0 release notes, where it was listed under 'Important Security Bugfixes'. The development team addressed this along with other security issues related to arbitrary read operations and log poisoning with Remote-Code-Execution (Cobbler Release).

Additional resources


SourceThis report was generated using AI

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