Apache InLong JDBC Vulnerability Permits Deserialization of Untrusted Information

A moderate-severity vulnerability, tracked as CVE-2025-27522, has been disclosed in Apache InLong, a preferred information integration platform.

The flaw, affecting variations 1.13.0 by 2.1.0, facilities on the deserialization of untrusted information throughout JDBC (Java Database Connectivity) verification processing.

This vulnerability is classed as a secondary mining bypass for the beforehand reported CVE-2024-26579, indicating that earlier patches had been inadequate and attackers can nonetheless exploit the system by different vectors.

Deserialization vulnerabilities happen when an utility processes information that may be manipulated by an attacker, permitting them to execute arbitrary code or entry delicate data.

On this case, the vulnerability permits menace actors to bypass safety mechanisms within the InLong JDBC part, probably resulting in unauthorized information manipulation or data disclosure.

Technical Particulars and Influence

The vulnerability is rooted in the way in which Apache InLong handles serialized information throughout verification.

Particularly, the system fails to adequately validate or sanitize incoming serialized objects, opening the door for attackers to craft malicious payloads.

When these payloads are deserialized, they’ll set off unintended behaviors, similar to arbitrary file studying or code execution.

The Frequent Weak spot Enumeration (CWE) identifier for this situation is CWE-502: Deserialization of Untrusted Information.

The vulnerability is network-exploitable and doesn’t require consumer interplay, with a CVSS v3.1 base rating estimated between 5.3 and 6.5, reflecting a average to excessive danger profile.

Though there may be at present no public proof-of-concept or proof of energetic exploitation, the potential for information breaches or system compromise stays vital.

Affected Variations and Parts

The next desk summarizes the affected merchandise and beneficial remediation steps:

Mitigation and Suggestions

To deal with CVE-2025-27522, Apache advises all customers to improve to model 2.2.0 of InLong or apply the patch out there in GitHub pull request #11732.

Extra finest practices embrace:

• Implementing strict enter validation and sanitization for all deserialization processes.
• Proscribing and validating sources of serialized information.
• Monitoring and auditing system logs for indicators of exploitation makes an attempt.

Pattern Code Snippet for Secure Deserialization

Beneath is a simplified Java instance for protected deserialization, emphasizing enter validation:

javaObjectInputStream ois = new ObjectInputStream(new FileInputStream("enter.ser"));
Object obj = ois.readObject();
if (obj instanceof ExpectedClass) {
    // Secure to proceed
    ExpectedClass information = (ExpectedClass) obj;
} else {
    throw new SecurityException("Surprising object sort!");
}
ois.shut();

This strategy ensures solely anticipated object sorts are processed, decreasing the danger of arbitrary code execution.

Pressing Want for Patch Adoption

CVE-2025-27522 underscores the persistent dangers related to deserialization vulnerabilities in enterprise software program.

Whereas no energetic exploits have been reported, the benefit of network-based assaults and the bypass of earlier safety mechanisms make immediate patching important.

Organizations counting on Apache InLong ought to prioritize upgrading to model 2.2.0 or making use of the beneficial patch to safeguard their information pipelines and keep compliance with finest safety practices.

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