CVE-2022-29048 in macOS
Summary
by MITRE • 04/13/2022
A cross-site request forgery (CSRF) vulnerability in Jenkins Subversion Plugin 2.15.3 and earlier allows attackers to connect to an attacker-specified URL.
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Analysis
by VulDB Data Team • 08/20/2022
The CVE-2022-29048 vulnerability represents a critical cross-site request forgery flaw within the Jenkins Subversion Plugin version 2.15.3 and earlier releases. This vulnerability arises from insufficient validation of user requests, allowing malicious actors to manipulate the plugin's behavior through crafted HTTP requests. The issue specifically affects the plugin's ability to verify the authenticity of incoming requests, creating a pathway for unauthorized actions to be executed on behalf of authenticated users. The vulnerability's impact extends beyond simple data manipulation as it enables attackers to establish connections to arbitrary URLs specified by the malicious party, potentially leading to further exploitation vectors.
The technical implementation of this CSRF vulnerability stems from the plugin's failure to properly implement anti-CSRF token mechanisms or validate request origins. When Jenkins processes Subversion-related operations, the plugin should verify that requests originate from legitimate sources and contain appropriate authentication tokens. However, in vulnerable versions, the plugin accepts requests without adequate verification, making it susceptible to attacks where an attacker can trick authenticated users into performing unintended actions. The vulnerability's exploitation requires minimal prerequisites as users must simply navigate to a malicious webpage or be tricked into clicking on a crafted link that initiates the unauthorized connection.
From an operational perspective, this vulnerability poses significant risks to Jenkins environments that rely on the Subversion plugin for version control integration. Attackers can leverage this flaw to establish connections to malicious endpoints, potentially enabling data exfiltration, command execution, or further network reconnaissance activities. The attack surface expands when considering that Jenkins servers often have elevated privileges and access to sensitive code repositories, making successful exploitation particularly damaging. Organizations using older plugin versions face increased risk as the vulnerability allows for persistent connections to attacker-controlled resources, potentially enabling long-term surveillance or data theft operations.
Security professionals should immediately prioritize patching affected systems to address this CSRF vulnerability, as the remediation involves updating to versions that implement proper request validation mechanisms. The mitigation strategy should include verifying that all Jenkins instances utilizing the Subversion plugin have been updated to versions containing the necessary security patches. Organizations should also implement network monitoring to detect unusual connection patterns to external endpoints that may indicate exploitation attempts. Additionally, administrators should review and harden their Jenkins configurations to ensure proper access controls and authentication mechanisms are in place, reducing the overall attack surface.
This vulnerability aligns with CWE-352, which specifically addresses Cross-Site Request Forgery weaknesses in software applications, and demonstrates how inadequate input validation can lead to serious security implications. The attack vector follows patterns commonly associated with CSRF attacks in web applications, where user sessions are manipulated to execute unauthorized commands. From an ATT&CK framework perspective, this vulnerability maps to techniques involving initial access through web application exploitation and privilege escalation by leveraging authenticated sessions to establish persistent connections to external systems. The broader implications suggest that organizations should conduct comprehensive security assessments of their Jenkins environments to identify similar vulnerabilities in other plugins or components that may expose similar attack surfaces.