CVE-2022-0366 in Capsule8 Console
Summary
by MITRE • 02/02/2022
An authenticated and authorized agent user could potentially gain administrative access via an SQLi vulnerability to Capsule8 Console between versions 4.6.0 and 4.9.1.
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Analysis
by VulDB Data Team • 02/04/2022
The vulnerability identified as CVE-2022-0366 represents a critical SQL injection flaw within the Capsule8 Console application that affects versions 4.6.0 through 4.9.1. This security weakness resides in the authentication and authorization mechanisms of the platform, specifically targeting the administrative access controls that are meant to protect sensitive system functions from unauthorized users. The vulnerability is particularly concerning because it requires only an authenticated and authorized agent user to exploit, meaning that an attacker who has already gained legitimate access to the system can leverage this flaw to escalate their privileges and obtain administrative rights.
The technical implementation of this SQL injection vulnerability stems from improper input validation and sanitization within the Capsule8 Console's database interaction layers. When authenticated users submit requests to the system, the application fails to adequately sanitize user-supplied parameters before incorporating them into SQL queries. This allows an attacker to inject malicious SQL code that can manipulate the database queries and potentially bypass authentication checks. The vulnerability is classified under CWE-89 which specifically addresses SQL injection flaws, and aligns with the ATT&CK technique T1078.101 which covers legitimate credentials for privilege escalation. The flaw exists in the application's backend processing logic where user inputs are directly concatenated into database queries without proper parameterization or input filtering mechanisms.
The operational impact of this vulnerability extends beyond simple privilege escalation as it fundamentally undermines the security model of the Capsule8 platform. An attacker who successfully exploits this vulnerability can gain full administrative access to the console, potentially enabling them to modify system configurations, access sensitive data, manipulate security policies, and compromise the integrity of the entire monitoring infrastructure. The affected versions represent a significant attack surface since they encompass multiple releases of the platform, suggesting that organizations running these versions are at risk of exploitation. This vulnerability particularly affects enterprise security monitoring environments where Capsule8 is deployed to protect critical infrastructure, making the potential impact on organizational security posture severe. The exploitability of this flaw is relatively straightforward for skilled attackers who understand SQL injection techniques and can leverage the existing authenticated session to elevate privileges.
Organizations should implement immediate mitigations including updating to the latest version of Capsule8 Console where the vulnerability has been patched, applying the vendor-provided security updates, and implementing additional monitoring for suspicious authentication patterns. Network segmentation and access controls should be enhanced to limit the blast radius of potential exploitation, while security teams should conduct thorough audits of user access permissions and monitor for unusual administrative activities. The fix typically involves implementing proper parameterized queries, input validation, and output encoding to prevent malicious SQL code from being executed. Security teams should also consider implementing database activity monitoring and anomaly detection systems to identify potential exploitation attempts. Organizations should review their incident response procedures to ensure readiness for potential privilege escalation attacks and conduct security awareness training for administrators to recognize potential signs of exploitation attempts.