CVE-2018-5399: Software Security Vulnerability Vulnerability

CRITICAL
Advisory Identifier: GHSA-qxxm-7g2q-pwxw
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CVSS 9.8
CWE-798
Published
Advisory Summary

CVE-2018-5399 is a CRITICAL (CVSS 9.8) security vulnerability vulnerability (CWE-798: Use of Hard-coded Credentials) affecting Software libraries in the Maven ecosystem. The weakness occurs when the product contains hard-coded credentials, such as a password or cryptographic key.. Remediation is available in the latest vendor maintenance releases.

CVE-2018-5399 at a Glance

CVE Identifier CVE-2018-5399
GHSA Identifier GHSA-qxxm-7g2q-pwxw
Severity CRITICAL
CVSS v3.1 Base Score 9.8
CWE Classification CWE-798: Use of Hard-coded Credentials
Affected Product Software
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 9.8

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H).

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

How to Fix CVE-2018-5399

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-2018-5399, 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 CWE-798: Use of Hard-coded Credentials, where the product contains hard-coded credentials, such as a password or cryptographic key. 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

The Auto-Maskin DCU 210E firmware contains an undocumented Dropbear SSH server, v2015.55, configured to listen on Port 22 while the DCU is running. The Dropbear server is configured with a hard-coded user name and password combination of root / amroot. The server is configured to use password only authentication not cryptographic keys, however the firmware image contains an RSA host-key for the server. An attacker can exploit this vulnerability to gain root access to the Angstrom Linux operating system and modify any binaries or configuration files in the firmware. Affected releases are Auto-Maskin DCU-210E RP-210E: Versions prior to 3.7 on ARMv7.

References

NVD — CVE-2018-5399 NVD
https://nvd.nist.gov/vuln/detail/CVE-2018-5399
www.kb.cert.org/vuls/id/176301 WEB
https://www.kb.cert.org/vuls/id/176301
www.us-cert.gov/ics/advisories/icsa... WEB
https://www.us-cert.gov/ics/advisories/icsa-20-051-04

Frequently Asked Questions

What is CVE-2018-5399?
CVE-2018-5399 is a security vulnerability in Software classified as a security vulnerability vulnerability under CWE-798: Use of Hard-coded Credentials.
Which Software versions are affected?
Affected versions include releases prior to current release patches.
What version fixes CVE-2018-5399?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What is the CVSS score of CVE-2018-5399?
CVE-2018-5399 has a CVSS v3.1 base score of 9.8 (CRITICAL) with vector string CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
What CWE is associated with CVE-2018-5399?
CVE-2018-5399 is classified under CWE-798: Use of Hard-coded Credentials (The product contains hard-coded credentials, such as a password or cryptographic key.).
How can I check Maven dependencies for CVE-2018-5399?
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-qxxm-7g2q-pwxw",
  "modified" : "2022-05-13T01:32:11Z",
  "published" : "2022-05-13T01:32:11Z",
  "aliases" : [ "CVE-2018-5399" ],
  "details" : "The Auto-Maskin DCU 210E firmware contains an undocumented Dropbear SSH server, v2015.55, configured to listen on Port 22 while the DCU is running. The Dropbear server is configured with a hard-coded user name and password combination of root / amroot. The server is configured to use password only authentication not cryptographic keys, however the firmware image contains an RSA host-key for the server. An attacker can exploit this vulnerability to gain root access to the Angstrom Linux operating system and modify any binaries or configuration files in the firmware. Affected releases are Auto-Maskin DCU-210E RP-210E: Versions prior to 3.7 on ARMv7.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
  } ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2018-5399"
  }, {
    "type" : "WEB",
    "url" : "https://www.kb.cert.org/vuls/id/176301"
  }, {
    "type" : "WEB",
    "url" : "https://www.us-cert.gov/ics/advisories/icsa-20-051-04"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-798" ],
    "severity" : "CRITICAL",
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2018-10-08T15:29:00Z"
  }
}