CVE-2018-20678: Librenms/librenms SQL Injection Vulnerability

HIGH
Advisory Identifier: GHSA-4fwh-r866-pvh9
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CVSS 8.8
CWE-89
Published
Advisory Summary

CVE-2018-20678 is a HIGH (CVSS 8.8) sql injection vulnerability (CWE-89: Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')) affecting Librenms/librenms libraries in the Packagist ecosystem. The issue involves librenms sql injection. Remediation is available by upgrading affected packages to version 1.65.

CVE-2018-20678 at a Glance

CVE Identifier CVE-2018-20678
GHSA Identifier GHSA-4fwh-r866-pvh9
Severity HIGH
CVSS v3.1 Base Score 8.8
CWE Classification CWE-89: Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')
Affected Product Librenms/librenms
Package Ecosystem Packagist
Published Date
Last Updated

Security Impact

CVSS: 8.8

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

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 High (I:H)
Availability High (A:H)

How to Fix CVE-2018-20678

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

librenms/librenms fixed: 1.65 
Upgrade librenms/librenms to 1.65
Verify Direct and Transitive Dependencies

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

inspect dependencies for librenms/librenms

How to Check if You Are Affected

To determine whether your application is affected by CVE-2018-20678, inspect your project dependencies for Librenms/librenms:

inspect dependencies for librenms/librenms

Analyze the terminal output to locate any version of Librenms/librenms in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 1.65), your application is affected.

Note: Verify declared build manifests and deployed runtime container environments.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-89: Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection'), where the product constructs all or part of an sql command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended sql command when it is sent to a downstream component. without sufficient removal or quoting of sql syntax in user-controllable inputs, the generated sql query can cause those inputs to be interpreted as sql instead of ordinary user data. In Librenms/librenms, 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

LibreNMS through 1.47 allows SQL injection via the html/ajax_table.php sort[hostname] parameter, exploitable by authenticated users during a search.

CVE-2018-20678 Affected Librenms/librenms Versions

1 component(s)
Fixed Versions:
1.65
Product / Package Ecosystem Affected Versions Fixed Version
librenms/librenms
 Packagist
< 1.65
1.65

References

NVD — CVE-2018-20678 NVD
https://nvd.nist.gov/vuln/detail/CVE-2018-20678
Librenms/librenms Source Repository REPOSITORY
https://github.com/librenms/librenms/pull/11920
Security Fix Commit FIX COMMIT
https://github.com/librenms/librenms/commit/32f72bc1ab7e980e4070e826a89d0d36a5ba62dd
cert.enea.pl/advisories/cert-190... WEB
https://cert.enea.pl/advisories/cert-190101.html

Frequently Asked Questions

What is CVE-2018-20678?
CVE-2018-20678 is a security vulnerability in Librenms/librenms involving LibreNMS SQL Injection under CWE-89: Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection').
Which Librenms/librenms versions are affected?
Affected versions include releases prior to 1.65 across affected packages: librenms/librenms.
What version fixes CVE-2018-20678?
Upgrading to 1.65 (or the latest patched release for your respective branch) resolves the vulnerability.
Is librenms/librenms affected?
Yes, librenms/librenms is affected in releases prior to 1.65. Upgrade your dependency to 1.65 or later.
What is the CVSS score of CVE-2018-20678?
CVE-2018-20678 has a CVSS v3.1 base score of 8.8 (HIGH) with vector string CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
What CWE is associated with CVE-2018-20678?
CVE-2018-20678 is classified under CWE-89: Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') (The product constructs all or part of an SQL command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended SQL command when it is sent to a downstream component. Without sufficient removal or quoting of SQL syntax in user-controllable inputs, the generated SQL query can cause those inputs to be interpreted as SQL instead of ordinary user data.).
How can I check Packagist dependencies for CVE-2018-20678?
Run the dependency tree command: 'inspect dependencies for librenms/librenms'. 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-4fwh-r866-pvh9",
  "modified" : "2023-07-24T21:41:38Z",
  "published" : "2022-05-14T01:14:50Z",
  "aliases" : [ "CVE-2018-20678" ],
  "summary" : "LibreNMS SQL Injection",
  "details" : "LibreNMS through 1.47 allows SQL injection via the html/ajax_table.php sort[hostname] parameter, exploitable by authenticated users during a search.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "librenms/librenms"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "1.65"
      } ]
    } ],
    "database_specific" : {
      "last_known_affected_version_range" : "<= 1.47"
    }
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2018-20678"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/librenms/librenms/pull/11920"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/librenms/librenms/commit/32f72bc1ab7e980e4070e826a89d0d36a5ba62dd"
  }, {
    "type" : "WEB",
    "url" : "https://cert.enea.pl/advisories/cert-190101.html"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-89" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2023-07-24T21:41:38Z",
    "nvd_published_at" : "2019-03-28T16:29:00Z"
  }
}