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Amazon S3 Encryption Client for Java < 4.0.0 Key Commitment (AWS-2025-032)

medium Nessus Plugin ID 282633

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Synopsis

A package installed on the remote host is affected by a cryptographic key commitment vulnerability.

Description

The version of Amazon S3 Encryption Client for Java on the remote host is < 4.0.0. It is, therefore, affected by a key commitment vulnerability as referenced in the AWS-2025-032 advisory.

Missing cryptographic key commitment in the Amazon S3 Encryption Client for Java may allow a user with write access to the S3 bucket to introduce a new EDK that decrypts to different plaintext when the encrypted data key is stored in an instruction file instead of S3's metadata record.

Note that Nessus has not tested for this issues but has instead relied only on the application's self-reported version number.

Solution

Update Amazon S3 Encryption Client for Java to version 4.0.0 or later.

See Also

https://aws.amazon.com/security/security-bulletins/AWS-2025-032/

Plugin Details

Severity: Medium

ID: 282633

File Name: s3_encryption_client_java_CVE-2025-14763.nasl

Version: 1.2

Type: local

Agent: windows, macosx, unix

Family: Misc.

Published: 1/13/2026

Updated: 2/17/2026

Configuration: Enable thorough checks (optional)

Supported Sensors: Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Medium

Base Score: 4.9

Temporal Score: 3.6

Vector: CVSS2#AV:N/AC:H/Au:S/C:N/I:C/A:N

CVSS Score Source: CVE-2025-14763

CVSS v3

Risk Factor: Medium

Base Score: 5.3

Temporal Score: 4.6

Vector: CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:N

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

CVSS v4

Risk Factor: Medium

Base Score: 6

Threat Score: 2.3

Threat Vector: CVSS:4.0/E:U

Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N

Vulnerability Information

CPE: cpe:/a:amazon:s3_encryption_client:java

Required KB Items: installed_sw/Amazon S3 Encryption Client for Java

Exploit Ease: No known exploits are available

Patch Publication Date: 12/17/2025

Vulnerability Publication Date: 12/17/2025

Reference Information

CVE: CVE-2025-14763

IAVA: 2026-A-0003