Ethical Hacking News
Apache Parquet's Java Library has been found to contain a critical vulnerability (CVE-2025-30065) that can allow remote code execution. Organizations that rely on big-data frameworks such as Apache Hadoop, Apache Spark, and Apache Drill are advised to upgrade their software or take alternative measures to prevent exploitation of this flaw.
A critical vulnerability has been discovered in Apache Parquet's Java Library, dubbed "canary exploit" by F5 Labs. The vulnerability, tracked as CVE-2025-30065, is a Deserialization of Untrusted Data issue that can be exploited to execute arbitrary code on vulnerable systems. The vulnerability can only be exploited if a malicious Parquet file is imported into an environment using the Apache Parquet Avro module to parse it. Organizations are advised to upgrade Apache Parquet Java to version 1.15.1 or later, and implement input validation, monitoring, and logging to detect suspicious behavior.
The latest development in the realm of cybersecurity has left many experts on high alert, as a critical vulnerability has been discovered in Apache Parquet's Java Library. The PoC tool, dubbed "canary exploit," released by F5 Labs, allows users to identify servers vulnerable to this flaw, which has significant implications for organizations that rely on large-scale data processing frameworks.
Apache Parquet is a columnar storage file format designed for use with big-data frameworks such as Apache Hadoop, Apache Spark, and Apache Drill. The vulnerability, tracked as CVE-2025-30065, is a Deserialization of Untrusted Data issue, which can be exploited by attackers to execute arbitrary code on vulnerable systems.
According to Endor Labs, the vulnerability can only be exploited if a malicious Parquet file is imported into an environment that uses the Apache Parquet Avro module to parse it. This means that not all systems are equally affected, but rather those that use this specific library to import and process Parquet files.
The potential impact of this flaw is significant, as it can allow attackers to execute arbitrary code on vulnerable systems, potentially leading to remote code execution (RCE). In practice, this could mean that an attacker could gain control over the system, steal or tamper with sensitive information, install malware, disrupt services, or even cause denial-of-service attacks.
The researchers from F5 Labs have created a tool that generates a Parquet/Avro file that will trigger object instantiation of a class that comes with Java (javax.swing.JEditorKit). Instantiating javax.swing.JEditorKit with a single String argument has the side effect of treating the String as a URL and making an HTTP GET request. By registering a canary URL and using that as the target URL, the tool allows for easy testing of the vulnerability, as well as assurance that it has been fixed by applying patches and proper configuration.
It is worth noting that while this flaw is critical, real-world exploitation is not currently feasible due to the specific circumstances required. However, with the issue now public, threat actors may attempt to exploit it, making it essential for organizations to address the vulnerability immediately.
To protect systems from CVE-2025-30065, users are advised to upgrade Apache Parquet Java to version 1.15.1 or later. If that is not possible, they should avoid or validate Parquet files from untrusted sources and implement input validation. Enabling monitoring and logging can also help detect suspicious behavior, and staying informed on updates from Apache or cybersecurity authorities will reduce the risks associated with this vulnerability.
In conclusion, the critical Apache Parquet flaw has significant implications for organizations that rely on large-scale data processing frameworks. While real-world exploitation is currently not feasible, the potential impact of this flaw means that it is essential to address the issue immediately and take proactive measures to protect systems from potential threats.
Related Information:
https://www.ethicalhackingnews.com/articles/A-Critical-Apache-Parquet-Flaw-A-Threat-to-Large-Scale-Data-Processing-Frameworks-ehn.shtml
https://securityaffairs.com/177565/security/canary-exploit-tool-allows-to-find-servers-affected-by-apache-parquet-flaw.html
https://nvd.nist.gov/vuln/detail/CVE-2025-30065
https://www.cvedetails.com/cve/CVE-2025-30065/
Published: Wed May 7 12:14:45 2025 by llama3.2 3B Q4_K_M
