CVE-2025-31728 in AsakusaSatellite Plugin
Summary
by MITRE • 04/02/2025
Jenkins AsakusaSatellite Plugin 0.1.1 and earlier does not mask AsakusaSatellite API keys displayed on the job configuration form, increasing the potential for attackers to observe and capture them.
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Analysis
by VulDB Data Team • 04/03/2025
The vulnerability identified as CVE-2025-31728 affects the Jenkins AsakusaSatellite Plugin version 0.1.1 and earlier, presenting a significant security risk through improper handling of sensitive authentication credentials. This issue manifests in the job configuration form where AsakusaSatellite API keys are displayed in plain text rather than being masked or obfuscated, creating an opportunity for unauthorized access to critical system resources. The flaw represents a direct violation of security best practices for credential management within automated build and deployment environments where Jenkins serves as a central orchestration platform for continuous integration and delivery processes.
The technical implementation flaw stems from the plugin's failure to apply proper input masking mechanisms when rendering API key fields in the web interface. This vulnerability directly maps to CWE-200, which addresses the exposure of sensitive information to an unauthorized actor, and specifically relates to CWE-521, concerning weak password requirements, though in this case the weakness lies in credential visibility rather than strength. The issue occurs at the user interface level where the plugin does not implement standard security measures such as password field masking or secure input rendering that would prevent sensitive data from being visible during job configuration operations.
The operational impact of this vulnerability extends beyond simple credential exposure, as it enables potential attackers to capture API keys through various attack vectors including screen recording, shoulder surfing, or direct observation of system administrators performing configuration tasks. In environments where Jenkins serves as a critical component of DevOps pipelines, the compromise of AsakusaSatellite API keys could lead to unauthorized access to downstream systems, data exfiltration, or manipulation of automated deployment processes. This vulnerability particularly affects organizations using Jenkins for continuous integration workflows where multiple administrators may interact with job configurations, increasing the attack surface and potential for credential compromise.
From an attack perspective, this vulnerability aligns with techniques described in the MITRE ATT&CK framework under the T1552 category, specifically targeting the credential access phase where adversaries seek to obtain credentials for unauthorized access. The vulnerability can be exploited by attackers who gain physical access to systems or those who can observe administrative sessions, making it particularly dangerous in shared or unsecured environments. Organizations using this plugin should consider the broader implications for their security posture, as the exposure of API keys could enable lateral movement within their infrastructure or provide access to cloud services, databases, or other systems that rely on AsakusaSatellite integration.
Mitigation strategies should include immediate plugin version updates to address the vulnerability, implementation of additional access controls and monitoring for credential exposure, and consideration of alternative authentication mechanisms that do not rely on API key exposure in web interfaces. Organizations should also implement security awareness training for administrators to recognize potential credential exposure scenarios and establish policies for secure credential handling within Jenkins environments. The fix should involve proper input field masking and secure rendering of sensitive data, ensuring that API keys are not visible during job configuration operations while maintaining the plugin's intended functionality for legitimate users.