CVE-2015-8022 in BIG-IP
Summary
by MITRE
The Configuration utility in F5 BIG-IP LTM, Analytics, APM, ASM, GTM, and Link Controller 11.x before 11.2.1 HF16, 11.3.x, 11.4.x before 11.4.1 HF10, 11.5.x before 11.5.4, and 11.6.x before 11.6.1; BIG-IP AAM 11.4.x before 11.4.1 HF10, 11.5.x before 11.5.4, and 11.6.x before 11.6.1; BIG-IP AFM and PEM 11.3.x, 11.4.x before 11.4.1 HF10, 11.5.x before 11.5.4, and 11.6.x before 11.6.1; BIG-IP Edge Gateway, WebAccelerator, and WOM 11.x before 11.2.1 HF16 and 11.3.0; and BIG-IP PSM 11.x before 11.2.1 HF16, 11.3.x, and 11.4.x before 11.4.1 HF10 allows remote authenticated users with certain permissions to gain privileges by leveraging an Access Policy Manager customization configuration section that allows file uploads.
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Analysis
by VulDB Data Team • 11/12/2024
The CVE-2015-8022 vulnerability represents a critical privilege escalation flaw affecting multiple F5 BIG-IP product lines including Local Traffic Manager Analytics Application Policy Manager Application Security Manager Global Traffic Manager Link Controller and various other modules. This vulnerability exists within the configuration utility of affected BIG-IP versions and specifically targets the Access Policy Manager customization configuration section. The flaw enables remote authenticated users with certain permissions to exploit file upload functionality and subsequently escalate their privileges within the system. This represents a significant security concern as it allows attackers who already possess some level of access to potentially gain elevated system privileges that could compromise the entire network infrastructure.
The technical implementation of this vulnerability stems from improper validation within the file upload mechanism of the Access Policy Manager customization configuration section. When authenticated users with specific permissions attempt to upload files through this interface, the system fails to properly validate the uploaded content or enforce appropriate access controls. This weakness creates a pathway for privilege escalation attacks where maliciously crafted files could be uploaded and executed with higher privileges than initially granted. The vulnerability is particularly concerning because it leverages legitimate system functionality to achieve unauthorized access, making detection more challenging. According to CWE standards, this maps to CWE-22 Improper Limitation of a Pathname to a Restricted Directory and CWE-74 Improper Neutralization of Special Elements in Output Used by a Downstream Component. The attack vector requires remote access with authenticated credentials and specific permissions, making it a sophisticated threat that targets the configuration management interfaces of enterprise-grade network appliances.
The operational impact of CVE-2015-8022 extends far beyond simple privilege escalation as it fundamentally compromises the security posture of affected organizations. Successful exploitation could allow attackers to modify critical network configurations, access sensitive data, or establish persistent access points within the network infrastructure. Organizations utilizing these BIG-IP products face potential exposure to advanced persistent threats that could leverage this vulnerability to gain unauthorized control over their traffic management systems. The widespread nature of affected product lines including multiple versions of LTM Analytics APM ASM GTM and various specialized modules means that organizations across different sectors could be impacted. This vulnerability directly affects the principle of least privilege and could enable attackers to move laterally within network environments where BIG-IP appliances serve as critical infrastructure components. The attack could result in complete compromise of network traffic management capabilities and potentially lead to data breaches or service disruption.
Organizations should immediately implement comprehensive mitigation strategies to address CVE-2015-8022 across all affected BIG-IP installations. The primary recommendation involves applying the vendor-provided security patches and updates that specifically address this privilege escalation vulnerability. System administrators should also review and tighten access controls for the Access Policy Manager customization configuration section, implementing additional authentication layers and limiting file upload permissions to only essential administrative users. Network segmentation and monitoring of configuration utility access should be enhanced to detect suspicious file upload activities. According to ATT&CK framework methodology, this vulnerability aligns with T1068 Valid Accounts and T1078 Valid Accounts as the attack requires legitimate authenticated access, while T1059 Command and Scripting Interpreter represents the execution phase. Organizations should also conduct thorough security audits of their BIG-IP configurations to identify any potential exploitation attempts and ensure proper access control implementations. The remediation process should include verification that file upload functionality properly validates all uploaded content and enforces appropriate security restrictions. Given the widespread nature of affected versions, comprehensive vulnerability assessment across all network infrastructure components is essential to prevent exploitation and maintain operational security.