CVE-2023-37958 in Sumologic Publisher Plugin
Summary
by MITRE • 07/12/2023
A cross-site request forgery (CSRF) vulnerability in Jenkins Sumologic Publisher Plugin 2.2.1 and earlier allows attackers to connect to an attacker-specified URL.
Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.
Analysis
by VulDB Data Team • 07/12/2023
The CVE-2023-37958 vulnerability represents a critical cross-site request forgery flaw within the Jenkins Sumologic Publisher Plugin version 2.2.1 and earlier. This vulnerability arises from insufficient validation of user requests, allowing malicious actors to manipulate the plugin's functionality through crafted requests that appear to originate from legitimate users. The issue specifically affects organizations utilizing Jenkins continuous integration systems that have integrated the Sumologic Publisher Plugin for log aggregation and monitoring purposes. The vulnerability stems from the plugin's failure to implement proper anti-CSRF token mechanisms, enabling attackers to execute unauthorized actions on behalf of authenticated users within the Jenkins environment.
The technical exploitation of this CSRF vulnerability enables attackers to force the victim's browser to submit requests to the Sumologic Publisher Plugin endpoint with predetermined parameters. This allows adversaries to connect to attacker-controlled URLs, potentially leading to unauthorized data exfiltration, log manipulation, or redirection to malicious endpoints. The vulnerability operates by leveraging the browser's automatic credential handling mechanisms, where authenticated sessions are automatically included with requests, bypassing the need for explicit authentication from the attacker. This flaw particularly impacts environments where Jenkins is configured to publish logs to Sumologic services, as the attacker can manipulate the target URL to redirect logging data to compromised endpoints.
The operational impact of this vulnerability extends beyond simple data redirection, as it can facilitate more sophisticated attacks within the Jenkins ecosystem. Attackers may leverage this vulnerability to establish persistent connections to malicious infrastructure, potentially enabling them to collect sensitive build information, credentials, or system configurations that are typically published to Sumologic. The vulnerability's presence in the plugin's request handling mechanism means that any authenticated user within the Jenkins environment could become a vector for attack, potentially compromising the integrity of the logging infrastructure and the confidentiality of build artifacts. Organizations relying on Sumologic for monitoring their CI/CD pipelines face significant risk if this vulnerability remains unpatched.
Organizations should immediately upgrade to Jenkins Sumologic Publisher Plugin version 2.2.2 or later, which implements proper CSRF protection mechanisms including anti-CSRF tokens and request validation checks. The mitigation strategy should also include implementing additional network-level protections such as web application firewalls that can detect and block suspicious request patterns targeting the affected plugin. Security teams should conduct comprehensive audits of their Jenkins installations to identify all instances of the vulnerable plugin and ensure proper access controls are in place. This vulnerability aligns with CWE-352, which specifically addresses cross-site request forgery, and corresponds to ATT&CK technique T1566.002 for the exploitation of web application vulnerabilities. Regular security assessments and vulnerability scanning should be implemented to identify similar issues in other Jenkins plugins that may lack proper CSRF protection mechanisms.