S4E

VMware VCenter Remote Code Execution Scanner

Detects 'Remote Code Execution (RCE)' vulnerability in VMware VCenter.

Short Info


Level

Critical

Single Scan

Single Scan

Can be used by

Asset Owner

Estimated Time

10 seconds

Time Interval

17 days 9 hours

Scan only one

Domain, Subdomain, IPv4

Toolbox

VMware VCenter is a management system used by IT administrators for managing virtualized environments including virtual machines, storage, and networks from a single console. It is typically used within enterprise environments to streamline IT operations, improve operational efficiency, and automate routine tasks. VMware VCenter is compatible with various VMware products and can work on multiple platforms. It provides centralized visibility, control, and proactive management of the virtual infrastructure. The software supports large-scale data center environments, and it's extensively used for deploying and managing virtualizations. VMware VCenter integrates with numerous other VMware and third-party products to extend its functionalities.

The vulnerability in question involves Remote Code Execution (RCE) quite notably associated with the Apache Log4j framework. This severe security flaw enables attackers to execute arbitrary code on affected systems remotely. Exploitation of the vulnerability is achieved without requiring authentication, making it a critical risk. Attackers can utilize this vulnerability to inject malicious payloads, which can compromise the integrity and confidentially of the system. The vulnerability has drawn significant attention due to its vast impact across numerous software products globally. Remediation requires immediate action to update or patch vulnerable instances.

The technical manifestation of this vulnerability lies in the processing of Java Naming and Directory Interface (JNDI) lookups by Apache Log4j. Specifically, an attacker can trigger the vulnerability by crafting and sending a specially constructed string using JNDI lookups, accessed via environment variable manipulation. The point of exposure tends to involve specific headers such as those influenced by attacker-controlled client data. This condition allows malicious actors to remotely feed and execute arbitrary code on susceptible systems. Safe endpoints or effective filtering mechanisms are crucial to mitigating this risk. The vulnerable parameter is typically manipulated by injecting the malicious string into HTTP headers or message payloads.

When exploited, the consequences of this vulnerability are significant, as attackers can gain unauthorized access, execute arbitrary code, and potentially assume control over the affected system. This breach of security can lead to sensitive information being exposed or modified without authorization. Furthermore, the malicious code could cause denial of service, disrupt operations, or even render the system unusable. The exploitation can serve as a springboard for further attacks within a network, emphasizing the need for robust protective and remedial actions. Such actions could include unauthorized data access, exfiltration, and potentially long-term compromises of organizational infrastructures.

REFERENCES

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