CVE-2024-10397 in OpenAFS
Summary
by MITRE • 11/14/2024
A malicious server can crash the OpenAFS cache manager and other client utilities, and possibly execute arbitrary code.
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Analysis
by VulDB Data Team • 12/23/2025
The vulnerability identified as CVE-2024-10397 represents a critical security flaw within the OpenAFS (Open Architecture for File Systems) cache manager and associated client utilities. OpenAFS is a widely deployed distributed file system that provides secure access to files and directories across networked environments, particularly in academic and research institutions where large-scale data sharing is essential. This vulnerability specifically targets the client-side components that manage local caching of file system data, creating a potential pathway for remote code execution and system instability. The flaw exists in how the cache manager processes data from remote servers, making it susceptible to malicious input that can trigger unexpected behavior in the client applications.
The technical implementation of this vulnerability stems from inadequate input validation and memory handling within the OpenAFS client-side code. When the cache manager receives data from a malicious server, it fails to properly sanitize or validate the incoming information, leading to potential buffer overflows, memory corruption, or unexpected execution paths. This type of flaw aligns with common software security weaknesses categorized under CWE-121, which deals with stack-based buffer overflows, and CWE-122, which addresses heap-based buffer overflows. The vulnerability can be exploited through specially crafted responses from a compromised or malicious OpenAFS server, which could be part of a broader attack chain involving server compromise or man-in-the-middle scenarios. The exploitation process typically involves sending malformed data packets that cause the client to crash or behave unpredictably, potentially leading to code execution in the context of the running cache manager process.
The operational impact of CVE-2024-10397 extends beyond simple system crashes to potentially enable full remote code execution capabilities. When exploited successfully, this vulnerability allows attackers to gain control over the affected client systems, potentially leading to data exfiltration, lateral movement within the network, or the establishment of persistent backdoors. The cache manager's role in maintaining local file system access makes it a prime target for attackers seeking to escalate privileges or maintain access to sensitive network resources. Organizations using OpenAFS in environments where client systems are not properly isolated from untrusted network segments face the highest risk, as the vulnerability can be triggered through network-based attacks without requiring local system access. The impact is particularly severe in environments where OpenAFS is used for authentication and authorization services, as compromise of client cache managers could potentially undermine the entire distributed security architecture.
Mitigation strategies for CVE-2024-10397 should focus on immediate patching of affected systems, network segmentation to isolate OpenAFS clients from untrusted networks, and implementation of monitoring solutions to detect anomalous behavior in cache manager processes. Organizations should also consider implementing network access controls that restrict communication between OpenAFS clients and servers to trusted sources only, utilizing mechanisms such as firewalls, access control lists, or network segmentation. The vulnerability's exploitation potential aligns with tactics described in the MITRE ATT&CK framework under T1059 for command and control communication and T1068 for exploit for privilege escalation. System administrators should monitor for signs of cache manager crashes or unusual network traffic patterns that could indicate exploitation attempts, while also implementing regular security assessments to identify potential attack vectors. Additionally, organizations should consider deploying intrusion detection systems that can identify and alert on suspicious OpenAFS protocol traffic patterns that may indicate exploitation attempts. Given the nature of the vulnerability, a comprehensive approach combining software patching, network security controls, and operational monitoring is essential for effective defense against this threat.