CVE-2010-1871 in JBoss Enterprise Application Platform
Summary
by MITRE
JBoss Seam 2 (jboss-seam2), as used in JBoss Enterprise Application Platform 4.3.0 for Red Hat Linux, does not properly sanitize inputs for JBoss Expression Language (EL) expressions, which allows remote attackers to execute arbitrary code via a crafted URL. NOTE: this is only a vulnerability when the Java Security Manager is not properly configured.
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Analysis
by VulDB Data Team • 04/22/2026
The vulnerability identified as CVE-2010-1871 represents a critical remote code execution flaw within JBoss Seam 2 framework components that are part of the JBoss Enterprise Application Platform 4.3.0 distribution. This vulnerability specifically targets the improper sanitization of inputs within JBoss Expression Language expressions, creating a pathway for malicious actors to inject and execute arbitrary code on affected systems. The flaw exists in the way the framework processes user-supplied input parameters that are subsequently evaluated within the JBoss Expression Language context, which is a core component of the application's dynamic content rendering capabilities.
The technical nature of this vulnerability stems from insufficient input validation and sanitization mechanisms within the JBoss Seam framework's handling of URL parameters and other user-controllable inputs. When these inputs are processed through JBoss Expression Language expressions without proper sanitization, attackers can craft malicious URLs containing specially formatted payloads that, when executed by the application server, result in arbitrary code execution. This type of vulnerability falls under the CWE-74 category of Improper Neutralization of Special Elements used in a Command or Expression, specifically manifesting as a code injection vulnerability within the expression language processing subsystem. The vulnerability's exploitation requires the Java Security Manager to be improperly configured or disabled, as the security manager typically provides the necessary sandboxing mechanisms that would prevent such unauthorized code execution.
The operational impact of CVE-2010-1871 is severe and far-reaching, as it allows remote attackers to gain complete control over affected JBoss application servers. Once successfully exploited, attackers can execute arbitrary commands with the privileges of the application server process, potentially leading to data breaches, system compromise, and full network infiltration. The vulnerability affects organizations running JBoss Enterprise Application Platform 4.3.0 on Red Hat Linux systems, making it particularly concerning for enterprises that rely on this middleware stack for their business-critical applications. The remote nature of the attack means that exploitation can occur from anywhere on the internet without requiring physical access to the target system, significantly increasing the attack surface and potential impact.
Mitigation strategies for CVE-2010-1871 primarily focus on addressing the root cause through proper input validation and implementing robust security configurations. Organizations should immediately apply the vendor-provided patches and updates that address the input sanitization issues within the JBoss Seam framework. Additionally, proper configuration of the Java Security Manager is essential to prevent unauthorized code execution, as this security mechanism acts as a crucial barrier against exploitation attempts. Security measures should include implementing strict input validation for all user-supplied parameters, particularly those used in URL processing and expression language evaluation. Network-level protections such as web application firewalls and intrusion detection systems can provide additional layers of defense by monitoring for suspicious URL patterns and expression language payloads. The vulnerability's classification aligns with ATT&CK technique T1059.007 for Command and Scripting Interpreter: JavaScript, as the exploitation involves the execution of malicious code through the expression language interpreter. Organizations should also consider implementing principle of least privilege configurations and regular security audits to ensure that security measures remain effective against evolving exploitation techniques.