CVE-2017-10606 in Junos
Summary
by MITRE
Version 4.40 of the TPM (Trusted Platform Module) firmware on Juniper Networks SRX300 Series has a weakness in generating cryptographic keys that may allow an attacker to decrypt sensitive information in SRX300 Series products. The TPM is used in the SRX300 Series to encrypt sensitive configuration data. While other products also ship with a TPM, no other products or platforms are affected by this vulnerability. Customers can confirm the version of TPM firmware via the 'show security tpm status' command. This issue was discovered by an external security researcher. No other Juniper Networks products or platforms are affected by this issue.
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Analysis
by VulDB Data Team • 01/03/2023
The vulnerability identified as CVE-2017-10606 represents a critical weakness in the Trusted Platform Module firmware version 4.40 found on Juniper Networks SRX300 Series devices. This flaw specifically impacts the cryptographic key generation process within the TPM, creating a significant security risk that could potentially allow attackers to decrypt sensitive configuration data stored on these network security appliances. The TPM serves as a hardware security module that provides cryptographic services and secure key storage, making it a critical component for protecting sensitive information within the SRX300 Series products. The vulnerability stems from improper implementation of cryptographic key generation algorithms within the TPM firmware, which violates fundamental security principles for cryptographic operations. This weakness directly relates to CWE-327, which addresses the use of weak or broken cryptographic algorithms, and more specifically to CWE-326, which deals with inadequate encryption strength and key management practices.
The operational impact of this vulnerability extends beyond simple data confidentiality concerns, as it fundamentally compromises the security posture of SRX300 Series devices that rely on TPM for encryption of sensitive configuration data. Attackers who successfully exploit this weakness could potentially gain access to network configuration details, authentication credentials, and other sensitive information that would normally be protected by the TPM's cryptographic capabilities. The vulnerability affects only the SRX300 Series products and does not extend to other Juniper Networks platforms or products, which helps to limit the scope of potential impact. However, given that the SRX300 Series represents a widely deployed network security appliance, the potential consequences remain significant. The discovery of this vulnerability by an external security researcher highlights the importance of third-party security assessments and the value of coordinated vulnerability disclosure processes in identifying weaknesses before they can be exploited by malicious actors.
Security researchers and network administrators should be aware that this vulnerability can be detected through the 'show security tpm status' command, which allows customers to verify their current TPM firmware version and determine if their devices are affected by this weakness. The specific nature of the vulnerability, combined with the fact that it affects the core cryptographic functionality of the device, means that any exploitation could potentially lead to complete compromise of the affected system. This vulnerability aligns with ATT&CK technique T1552.001, which covers "Unsecured Credentials" through compromised cryptographic systems, and represents a direct threat to the integrity and confidentiality of network security configurations. Organizations should prioritize updating their SRX300 Series devices to firmware versions that address this TPM key generation weakness, as failure to remediate could result in unauthorized access to sensitive network infrastructure information and potential lateral movement within compromised networks. The vulnerability demonstrates how weaknesses in hardware security modules can have cascading effects on overall network security posture, emphasizing the critical importance of maintaining up-to-date firmware and conducting regular security assessments of all network components.