The vulnerability identified as CVE-2024-28864 affects the ilicmiljan SecureProps PHP library, specifically versions 1.2.0 and 1.2.1. This vulnerability allows regex to fail in detecting tags during the decryption of encrypted data. When encrypted data encoded with the `NullEncoder` is passed to `TagAwareCipher` and contains special characters such as `\n`, the decryption process is skipped due to undetected tags. Consequently, this results in the encrypted data being returned in plain format, which could lead to exposure of sensitive information.
The severity of this vulnerability is classified as low, with a CVSS score of 2.6. While the attack vector is network-based, the attack complexity is high, requiring low privileges and user interaction. Risk to organizations includes potential exposure of sensitive data, particularly for those relying on the affected versions of the library. Therefore, organizations should prioritize patching immediately by updating to version 1.2.2, which addresses this vulnerability.
As a temporary workaround, users may opt to use the default `Base64Encoder` with their base cipher decorated with `TagAwareCipher`. This approach mitigates the issues caused by special characters in the encrypted string, although it may necessitate double encoding since `TagAwareCipher` defaults to using `NullEncoder`. It is essential for users to evaluate this workaround's implications on their systems.
Given the potential impact of this vulnerability, it is crucial for developers and organizations utilizing the SecureProps library to remain vigilant and implement necessary updates promptly.
Vulnerability Details
The official description states that the vulnerability in SecureProps is tied to the failure of regex to detect tags during decryption. The issue arises when special characters are present, leading to the decryption process being skipped. The CVSS score of 2.6 reflects a low severity level, indicating that while there is a vulnerability, the exposure risk is mitigated by the necessary conditions for exploitation.
The affected versions are 1.2.0 and 1.2.1, and the vulnerability is classified under CWE-1333. Users are advised to upgrade to version 1.2.2, where this issue is remedied.
Technical Analysis
The root cause of this vulnerability lies in the regex logic that fails to detect tags during the decryption process, particularly when encoded with `NullEncoder`. The attack vector is network-based, and the complexity is high due to the requirement for user interaction. Low privileges are necessary for exploitation, indicating that an attacker would need some level of access to initiate the attack.
The impacts on confidentiality are low as the data can be returned in plain format if the vulnerability is exploited; however, integrity and availability impacts are non-existent. This vulnerability highlights the need for careful implementation of encryption libraries and the importance of testing for edge cases such as special character handling.
Risk & Impact Analysis
Organizations leveraging the SecureProps library should assess the real-world risks associated with this vulnerability. Given that it requires specific conditions to exploit, the immediate risk is considered low. However, the potential exposure of sensitive information is a significant concern. Organizations using versions 1.2.0 and 1.2.1 must prioritize patching to mitigate this vulnerability.
The urgency for remediation is classified as moderate. Organizations should schedule remediation within their patch management cycle to ensure that they are not exposing data unnecessarily. The overall impact on the organization will depend on their specific use cases and the sensitivity of the data handled by the SecureProps library.
Exploitation Status
Signal | Status |
|---|---|
Known Exploit | No |
Public PoC | No |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
The following versions of SecureProps are affected: 1.2.0 and 1.2.1. Organizations using these versions should upgrade to version 1.2.2 to mitigate the risk associated with this vulnerability. If version information is missing, organizations should consider all versions prior to the vendor patch as vulnerable.
Mitigation & Remediation
To address this vulnerability, users should upgrade to SecureProps version 1.2.2, where the issue is fixed. If immediate patching is not possible, utilizing the default `Base64Encoder` with the base cipher decorated with `TagAwareCipher` can serve as a temporary workaround. This approach prevents special characters in the encrypted string from interfering with the regex tag detection logic.
Additionally, organizations should implement monitoring to detect any anomalies in decryption processes and ensure that their encryption practices are robust. Regularly reviewing encryption libraries and dependencies is recommended to prevent similar vulnerabilities in the future.
Organizations should consider conducting penetration testing to validate their encryption implementations and ensure they are secure.
Detection Guidance
Organizations should monitor logs for indicators of decryption failures or anomalies in data processing that may indicate exploitation attempts. Behavioral anomalies during encryption or decryption processes should also be flagged for review. Network signatures associated with the use of `NullEncoder` and `TagAwareCipher` should be established to identify potential misuse.
AppSecure Threat Intelligence Insight
The CVE-2024-28864 vulnerability exemplifies the importance of thorough testing and validation of cryptographic implementations, particularly those involving user interaction and data encoding. Security teams should note the patterns observed in this vulnerability, as they highlight the necessity for rigorous validation of data handling processes. Lessons learned from this case can inform better practices around encryption and decryption logic.
For organizations utilizing encryption libraries, it is vital to remain informed about vulnerabilities and continuously assess the security of their implementations. Regular security assessments, such as application security assessments, can help identify weaknesses before they are exploited.
Moreover, engaging in continuous learning regarding encryption vulnerabilities and their implications can empower security teams to implement more effective defenses. Organizations should also consider leveraging resources such as continuous penetration testing to ensure that they are prepared to manage evolving security threats.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
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