CVE-2022-34201 in Convertigo Mobile Platform Plugin
Summary
by MITRE • 06/23/2022
A missing permission check in Jenkins Convertigo Mobile Platform Plugin 1.1 and earlier allows attackers with Overall/Read permission to connect to an attacker-specified URL.
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Analysis
by VulDB Data Team • 07/14/2022
The vulnerability identified as CVE-2022-34201 resides within the Jenkins Convertigo Mobile Platform Plugin version 1.1 and earlier, representing a critical authorization flaw that undermines the security posture of Jenkins environments. This issue manifests as a missing permission check that allows unauthorized attackers to exploit a legitimate plugin functionality for malicious purposes. The vulnerability specifically affects systems where the Convertigo Mobile Platform Plugin is installed and configured, creating a pathway for attackers to leverage existing permissions in ways that were not intended by the plugin developers.
The technical flaw stems from an insufficient validation mechanism within the plugin's code that fails to properly verify whether the requesting user possesses the appropriate authorization levels before allowing connection to external URLs. This missing permission check creates a scenario where an attacker with merely Overall/Read permission can manipulate the plugin to establish connections to arbitrary URLs specified by the attacker. The vulnerability essentially enables a form of unauthorized network communication that bypasses normal access controls, allowing the attacker to potentially exfiltrate data, perform reconnaissance, or even establish command and control channels.
The operational impact of this vulnerability extends beyond simple information disclosure, as it can enable more sophisticated attack vectors including data exfiltration, internal network reconnaissance, and potential lateral movement within the compromised environment. Attackers can leverage this vulnerability to connect to malicious servers, potentially redirecting sensitive data or using the compromised Jenkins instance as a pivot point for further attacks. The implications are particularly severe in environments where Jenkins serves as a central automation hub, as the compromised instance could provide attackers with access to build artifacts, configuration files, and potentially sensitive credentials stored within the Jenkins environment. This vulnerability directly violates the principle of least privilege and undermines the security model that Jenkins administrators rely upon for protecting their automation infrastructure.
Mitigation strategies should focus on immediate patching of the Convertigo Mobile Platform Plugin to version 1.2 or later, which addresses the missing permission check vulnerability. Organizations should also implement network segmentation to limit the ability of compromised Jenkins instances to connect to external networks, while monitoring for unusual outbound connections that might indicate exploitation attempts. Additionally, administrators should review and tighten access controls within Jenkins, ensuring that users with Overall/Read permissions cannot perform actions that could compromise system security. The vulnerability aligns with CWE-284, which addresses improper access control, and could be categorized under ATT&CK technique T1071.004 for application layer protocol: DNS, as attackers might use this vulnerability to establish DNS-based command and control channels. Regular security audits of Jenkins plugins and their configurations should be conducted to identify similar permission bypass vulnerabilities that could compromise the broader automation infrastructure.