CVE-2011-10043
BINGOS · Module::Load
A vulnerability in the Perl Module::Load library allows unauthenticated attackers to load arbitrary modules from unauthorized paths, potentially leading to remote code execution.
Executive summary
A flaw in the BINGOS Module::Load library allows for arbitrary module loading, which can be leveraged by an attacker to execute malicious code on the host system.
Vulnerability
This is a vulnerability involving Improper Neutralization of Section Delimiters (CWE-145). Attackers who can influence the input strings passed to the load function can use "::" sequences to bypass intended directory restrictions and load arbitrary modules.
Business impact
A CVSS score of 9.8 reflects the high potential for full system compromise. If an application relies on this library to handle user-supplied input for module loading, an attacker could achieve arbitrary code execution, resulting in complete breach of confidentiality, integrity, and availability.
Remediation
Immediate Action: Upgrade to Module::Load version 0.22 or later. If using Perl v5.15.3 or earlier, ensure the module is manually updated; Perl versions after v5.15.4 include the fix.
Proactive Monitoring: Audit applications using Perl to identify if they utilize the Module::Load library and if inputs to the load function are properly sanitized.
Compensating Controls: Implement input validation to ensure that module names provided by users cannot contain path-traversal characters or unexpected delimiters.
Exploitation status
Public Exploit Available: false
Analyst recommendation
This is a long-standing vulnerability that has been assigned a current CVE record. Given the potential for remote code execution, developers and system administrators must ensure that all Perl environments are updated to versions that include the patched Module::Load library.