CVE-2024-23651 is a high-severity vulnerability affecting MobyProject's BuildKit, a toolkit designed for converting source code into build artifacts. This vulnerability allows two malicious build steps running in parallel to share the same cache mounts with subpaths, potentially leading to a race condition. Consequently, files from the host system could become accessible to the build container. The CVSS score for this vulnerability is 8.7, indicating a significant risk to organizations.
Given the nature of the vulnerability, organizations using BuildKit must understand the potential risks involved. Attackers may leverage this vulnerability to gain unauthorized access to sensitive files on the host system, which can lead to significant data breaches. Organizations should prioritize patching immediately to mitigate the risks associated with this vulnerability.
The vulnerability has been fixed in version 0.12.5 of BuildKit. For organizations that cannot immediately apply the patch, workarounds include avoiding the use of BuildKit frontend from untrusted sources or refraining from building untrusted Dockerfiles containing cache mounts with --mount=type=cache,source=... options.
As of now, there are no confirmed public exploits for this vulnerability. However, organizations should remain vigilant and monitor their systems for any unusual activities that may indicate attempts to exploit this vulnerability.
In summary, organizations using MobyProject's BuildKit should take immediate steps to address CVE-2024-23651, whether through patching or implementing workarounds, to protect their systems from potential threats.
Vulnerability Details
The official description of CVE-2024-23651 states: 'BuildKit is a toolkit for converting source code to build artifacts in an efficient, expressive and repeatable manner. Two malicious build steps running in parallel sharing the same cache mounts with subpaths could cause a race condition that can lead to files from the host system being accessible to the build container.'
This vulnerability is classified as a privilege escalation, with a CVSS score of 8.7. It affects the BuildKit component of MobyProject. The vulnerability was published on January 31, 2024.
Technical Analysis
The root cause of this vulnerability lies in the improper handling of parallel build steps that share cache mounts with subpaths. When two build steps execute simultaneously and access the same cache mount, a race condition can occur. This can allow one build step to access files from the host system, leading to a breach of confidentiality and integrity.
The attack vector is network-based, meaning an attacker can exploit this vulnerability remotely. The attack complexity is rated as high, and no privileges are required to exploit this vulnerability. User interaction is not necessary, making it easier for attackers to exploit the flaw.
The confidentiality and integrity impacts are rated as high, while the availability impact is none. This indicates that sensitive data can be compromised, but the system remains operational.
Risk & Impact Analysis
The deployment of vulnerable versions of BuildKit poses a significant risk to organizations, particularly those handling sensitive data or operating in regulated industries. The potential for unauthorized access to host system files can result in severe data breaches, compliance violations, and reputational damage.
Organizations must assess their exposure based on their use of BuildKit and the likelihood of exploitation. Given the high CVSS score, this vulnerability should be treated with utmost urgency. Organizations should prioritize addressing this issue within their patch management processes.
The urgency for remediation is high, as the longer this vulnerability remains unaddressed, the greater the risk of exploitation. Organizations should ensure that they are using the latest version of BuildKit (v0.12.5 or later) to mitigate the potential risks.
Exploitation Status
Signal | Status |
|---|---|
Known Exploit | No |
Public PoC | No |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
The affected product is BuildKit. All versions prior to vendor patch (v0.12.5) are vulnerable to this issue. Organizations are encouraged to upgrade to the latest version to mitigate risks.
Mitigation & Remediation
To mitigate the risks associated with CVE-2024-23651, organizations should upgrade to BuildKit version 0.12.5 or later. If an immediate upgrade is not possible, consider implementing the following workarounds:
1. Avoid using BuildKit frontend from untrusted sources.
2. Refrain from building untrusted Dockerfiles that contain cache mounts with --mount=type=cache,source=... options.
For further assistance, organizations may consider engaging in penetration testing to evaluate their security posture.
Detection Guidance
Organizations should monitor their systems for the following indicators of compromise:
1. Log indicators that show abnormal access patterns to cache mounts.
2. Behavioral anomalies in build processes that may indicate unauthorized access attempts.
3. Network signatures that suggest exploitation attempts related to this vulnerability.
4. Changes to system configurations or file access permissions that are unexpected.
AppSecure Threat Intelligence Insight
CVE-2024-23651 represents a critical vulnerability that highlights the need for organizations to maintain a strong security posture around their build and deployment processes. The trend of vulnerabilities within development tools underscores the importance of implementing secure coding practices and regularly updating software components.
Organizations should consider adopting a penetration testing methodology to identify and mitigate similar vulnerabilities proactively. Additionally, engaging in vulnerability management programs can provide a structured approach for organizations to manage and reduce their security risks effectively.
Finally, it is essential for security teams to continuously monitor for emerging trends in vulnerabilities related to development environments and tools. By doing so, they can ensure that their defenses remain robust and effective against evolving threats.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
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