CVE-2005-2483 in Karrigell
Summary
by MITRE
Eval injection vulnerability in Karrigell before 2.1.8 allows remote attackers to execute arbitrary Python code via modified arguments to a Karrigell services (.ks) script, which can reference functions from libraries that are used by that script.
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Analysis
by VulDB Data Team • 11/07/2024
The CVE-2005-2483 vulnerability represents a critical server-side evaluation injection flaw in the Karrigell web application framework prior to version 2.1.8. This vulnerability resides in the way the framework processes script arguments and handles function references within Karrigell services files with the .ks extension. The flaw allows remote attackers to inject and execute arbitrary Python code by manipulating input arguments that are passed to these service scripts, effectively bypassing normal execution boundaries and gaining unauthorized access to the underlying system.
The technical nature of this vulnerability stems from insufficient input validation and sanitization within the Karrigell framework's argument processing mechanism. When a Karrigell service script is executed, it may reference functions from various libraries that are loaded and available to that script context. Attackers can exploit this by crafting malicious input arguments that contain Python code snippets, which then get evaluated as part of the normal script execution flow. This type of vulnerability falls under the CWE-94 category of "Improper Control of Generation of Code" and specifically manifests as a Code Injection weakness where attacker-controlled data is interpreted and executed as code.
The operational impact of CVE-2005-2483 is severe and far-reaching, as it provides attackers with complete code execution privileges on the affected server. Successful exploitation can lead to full system compromise, allowing attackers to install backdoors, exfiltrate sensitive data, modify system configurations, or launch further attacks against internal network resources. The vulnerability affects the entire Karrigell framework ecosystem and can be particularly dangerous in production environments where the framework handles sensitive data processing or serves as a backend for critical applications. From an adversarial perspective, this vulnerability aligns with ATT&CK technique T1059.006 for "Command and Scripting Interpreter: Python" and represents a significant foothold for lateral movement and persistence within compromised environments.
Mitigation strategies for CVE-2005-2483 primarily focus on immediate patching of the Karrigell framework to version 2.1.8 or later, which contains the necessary fixes for input validation and argument handling. Organizations should also implement comprehensive input validation measures at multiple layers of their application architecture, including validating and sanitizing all user-supplied data before processing. Network segmentation and access controls should be strengthened to limit exposure of Karrigell services to untrusted networks. Additionally, monitoring and logging should be enhanced to detect anomalous script execution patterns that might indicate exploitation attempts, while regular security assessments should be conducted to identify similar vulnerabilities in other legacy frameworks or custom applications that may exhibit similar patterns of insecure code generation and execution.