CVE-2023-6660: Software Security Vulnerability Vulnerability

MODERATE
Advisory Identifier: GHSA-cvh9-m5vp-qhrv
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CVSS 6.5
Published
Advisory Summary

CVE-2023-6660 is a MODERATE (CVSS 6.5) security vulnerability vulnerability (General Security Weakness) affecting Software libraries in the Maven ecosystem. Remediation is available in the latest vendor maintenance releases.

CVE-2023-6660 at a Glance

CVE Identifier CVE-2023-6660
GHSA Identifier GHSA-cvh9-m5vp-qhrv
Severity MODERATE
CVSS v3.1 Base Score 6.5
CWE Classification General Security Weakness
Affected Product Software
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 6.5

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N).

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required Low (PR:L)
User Interaction None (UI:N)
Scope Unchanged (S:U)
Confidentiality High (C:H)
Integrity None (I:N)
Availability None (A:N)

How to Fix CVE-2023-6660

To remediate this vulnerability, upgrade all affected Software dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

mvn dependency:tree

How to Check if You Are Affected

To determine whether your Java application is affected by CVE-2023-6660, inspect your build dependencies using the Maven Dependency Plugin:

mvn dependency:tree

Analyze the terminal output to locate any version of Software in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than the patched release), your application is affected.

Note: The mvn dependency:tree command inspects the resolved dependency graph declared in your project's POM files; it does not perform automated security scanning or inspect runtime dynamic classpaths. Always verify runtime container classpaths and shaded JARs.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under General Security Weakness. In Software, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

When a program running on an affected system appends data to a file via an NFS client mount, the bug can cause the NFS client to fail to copy in the data to be written but proceed as though the copy operation had succeeded. This means that the data to be written is instead replaced with whatever data had been in the packet buffer previously. Thus, an unprivileged user with access to an affected system may abuse the bug to trigger disclosure of sensitive information. In particular, the leak is limited to data previously stored in mbufs, which are used for network transmission and reception, and for certain types of inter-process communication. The bug can also be triggered unintentionally by system applications, in which case the data written by the application to an NFS mount may be corrupted. Corrupted data is written over the network to the NFS server, and thus also susceptible to being snooped by other hosts on the network. Note that the bug exists only in the NFS client; the version and implementation of the server has no effect on whether a given system is affected by the problem.

References

NVD — CVE-2023-6660 NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-6660
Software Security Information SECURITY
https://security.freebsd.org/advisories/FreeBSD-SA-23:18.nfsclient.asc
Software Security Information SECURITY
https://security.netapp.com/advisory/ntap-20240322-0002

Frequently Asked Questions

What is CVE-2023-6660?
CVE-2023-6660 is a security vulnerability in Software classified as a security vulnerability vulnerability under General Security Weakness.
Which Software versions are affected?
Affected versions include releases prior to current release patches.
What version fixes CVE-2023-6660?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What is the CVSS score of CVE-2023-6660?
CVE-2023-6660 has a CVSS v3.1 base score of 6.5 (MODERATE) with vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.
What CWE is associated with CVE-2023-6660?
CVE-2023-6660 is classified under General Security Weakness.
How can I check Maven dependencies for CVE-2023-6660?
Run the dependency tree command: 'mvn dependency:tree'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-cvh9-m5vp-qhrv",
  "modified" : "2024-03-22T21:30:56Z",
  "published" : "2023-12-13T09:30:32Z",
  "aliases" : [ "CVE-2023-6660" ],
  "details" : "When a program running on an affected system appends data to a file via an NFS client mount, the bug can cause the NFS client to fail to copy in the data to be written but proceed as though the copy operation had succeeded.  This means that the data to be written is instead replaced with whatever data had been in the packet buffer previously.  Thus, an unprivileged user with access to an affected system may abuse the bug to trigger disclosure of sensitive information.  In particular, the leak is limited to data previously stored in mbufs, which are used for network transmission and reception, and for certain types of inter-process communication.\n\nThe bug can also be triggered unintentionally by system applications, in which case the data written by the application to an NFS mount may be corrupted.  Corrupted data is written over the network to the NFS server, and thus also susceptible to being snooped by other hosts on the network.\n\nNote that the bug exists only in the NFS client; the version and implementation of the server has no effect on whether a given system is affected by the problem.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N"
  } ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2023-6660"
  }, {
    "type" : "WEB",
    "url" : "https://security.freebsd.org/advisories/FreeBSD-SA-23:18.nfsclient.asc"
  }, {
    "type" : "WEB",
    "url" : "https://security.netapp.com/advisory/ntap-20240322-0002"
  } ],
  "database_specific" : {
    "cwe_ids" : [ ],
    "severity" : "MODERATE",
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2023-12-13T09:15:34Z"
  }
}