CVE-2015-6846 in SourceOne Email Supervisor
Summary
by MITRE
EMC SourceOne Email Supervisor before 7.2 uses hardcoded encryption keys, which makes it easier for attackers to obtain access by examining how a program's code conducts cryptographic operations.
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Analysis
by VulDB Data Team • 06/22/2022
The vulnerability identified as CVE-2015-6846 affects EMC SourceOne Email Supervisor versions prior to 7.2, presenting a critical security weakness through the use of hardcoded encryption keys within the software implementation. This flaw resides in the cryptographic operations performed by the email supervision software, which is designed to monitor and manage email communications within enterprise environments. The presence of hardcoded keys represents a fundamental failure in secure key management practices, as these cryptographic elements are embedded directly within the application code rather than being dynamically generated or properly secured.
The technical implementation of this vulnerability stems from the application's failure to employ proper cryptographic key management protocols during its development lifecycle. When encryption keys are hardcoded into software binaries, they become permanently exposed to anyone with access to the application's code or executable files. This design flaw allows attackers to reverse engineer the cryptographic operations by examining the program's source code or compiled binaries, thereby enabling unauthorized decryption of protected email content and potentially compromising the confidentiality of sensitive communications within the enterprise environment.
From an operational perspective, this vulnerability significantly increases the attack surface for malicious actors targeting enterprise email systems. The ease with which attackers can extract these hardcoded keys through code analysis creates a substantial risk for organizations using affected versions of SourceOne Email Supervisor. The impact extends beyond simple data exposure, as compromised encryption keys can enable attackers to decrypt not only current email communications but also historical data that was previously encrypted using the same vulnerable implementation. This weakness directly violates industry security standards and best practices, particularly those outlined in the CWE-327 guideline which specifically addresses the use of weak cryptography and hardcoded keys.
The exploitation of this vulnerability aligns with several ATT&CK framework techniques including T1552.004 for unsecured credentials and T1005 for data from local systems. Organizations utilizing this software face elevated risks of data breaches, insider threats, and compliance violations, particularly in regulated environments where email encryption is mandated. The vulnerability demonstrates a clear failure in the principle of least privilege and proper key management, as the hardcoded keys provide persistent access to encrypted email content without requiring additional authentication factors or dynamic key generation processes. Security professionals should consider this weakness as a critical indicator of poor software development security practices and recommend immediate remediation through the application of vendor patches or upgrading to supported versions that implement proper cryptographic key management.
Organizations should implement comprehensive monitoring of their email infrastructure to detect potential exploitation attempts and establish robust key rotation procedures for any systems that may have been exposed to this vulnerability. The remediation process requires immediate patch application from EMC, along with thorough security assessments of email systems to identify any potential compromise from prior exploitation attempts. This vulnerability serves as a prime example of how fundamental security flaws in cryptographic implementation can undermine entire enterprise security frameworks, emphasizing the importance of following established security standards and conducting regular security reviews of critical infrastructure applications.