Jenkins Vulnerability Allows Agent Processes to Read Arbitrary Files
CVE-2024-43044
Key Information:
- Vendor
- Jenkins
- Status
- Jenkins
- Vendor
- CVE Published:
- 7 August 2024
Badges
What is CVE-2024-43044?
CVE-2024-43044 is a significant vulnerability found in the Jenkins automation server, specifically affecting versions up to 2.470 and LTS 2.452.3. This vulnerability allows agent processes to access arbitrary files from the Jenkins controller's file system due to a flaw in the Remoting library's ClassLoaderProxy#fetchJar
method. The implications of this vulnerability are alarming, as it can enable unauthorized file access within the Jenkins environment, which can severely compromise the integrity and security of an organization’s development and deployment processes.
Technical Details
The vulnerability lies in how Jenkins manages its agent processes and their interaction with the controller. By exploiting the ClassLoaderProxy#fetchJar
method, an attacker can manipulate agent processes to read and extract sensitive files from the Jenkins file system. This means that sensitive configuration files, credentials, or even source code could potentially be exposed, leading to further security breaches if the information is leveraged maliciously.
Impact of the Vulnerability
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Unauthorized Access to Sensitive Information: The ability of agent processes to read arbitrary files can lead to unauthorized access to critical information such as private key files, passwords, and other sensitive configuration data stored within Jenkins.
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Potential for Data Breaches: With access to sensitive files, attackers can escalate their privileges or obtain confidential data, resulting in data breaches that could have serious consequences for organizations, including loss of intellectual property.
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Compromise of Build and Deployment Processes: If an attacker can modify or access the files involved in Jenkins’ operational processes, they could potentially sabotage builds or introduce malicious code, resulting in compromised software deployments and wide-reaching impacts on affected systems.
Affected Version(s)
Jenkins 2.452.4
Jenkins 2.452.4 < 2.452.*
Jenkins 2.462.1 < 2.462.*
Exploit Proof of Concept (PoC)
PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.
News Articles
Cloud Heist: How Hackers Lock Accounts and Drain Wallets - Upwind
Cloud environments have changed how organizations manage their infrastructure, offering flexibility and scalability. But these benefits also bring new risks, and even small mistakes in cloud security can have serious consequences. For example, Google Cloud once accidentally deleted data from a $125 ...
2 months ago
References
CVSS V3.1
Timeline
- 📰
First article discovered by Upwind Security
- 🥇
Vulnerability reached the number 1 worldwide trending spot
- 📈
Vulnerability started trending
- 🟡
Public PoC available
- 👾
Exploit known to exist
Vulnerability published
Vulnerability Reserved