CVE-2018-1000225: Cobbler Cross-Site Scripting Vulnerability

MODERATE
Advisory Identifier: GHSA-q9g5-98pm-w6q7
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CVSS 6.1
CWE-79
Published
Advisory Summary

CVE-2018-1000225 is a MODERATE (CVSS 6.1) cross-site scripting vulnerability (CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')) affecting Cobbler libraries in the PyPI ecosystem. The issue involves cobbler xss vulnerability. Remediation is available in the latest vendor maintenance releases.

CVE-2018-1000225 at a Glance

CVE Identifier CVE-2018-1000225
GHSA Identifier GHSA-q9g5-98pm-w6q7
Severity MODERATE
CVSS v3.1 Base Score 6.1
CWE Classification CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Affected Product Cobbler
Package Ecosystem PyPI
Published Date
Last Updated

Security Impact

CVSS: 6.1

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:R/S:C/C:L/I:L/A:N).

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

How to Fix CVE-2018-1000225

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

cobbler fixed: Latest secure release 
pip install cobbler>=Latest secure release
Verify Direct and Transitive Dependencies

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

pip show cobbler

How to Check if You Are Affected

To determine whether your Python environment is affected by CVE-2018-1000225, inspect your installed packages using pip:

pip show cobbler

Analyze the terminal output to locate any version of Cobbler 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 pip show cobbler command checks currently installed packages in your active Python environment.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting'), where the product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. In Cobbler, 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

Cobbler version Verified as present in Cobbler versions 2.6.11+, but code inspection suggests at least 2.0.0+ or possibly even older versions may be vulnerable contains a Cross Site Scripting (XSS) vulnerability in cobbler-web that can result in Privilege escalation to admin.. This attack appear to be exploitable via "network connectivity". Sending unauthenticated JavaScript payload to the Cobbler XMLRPC API (/cobbler_api).

CVE-2018-1000225 Affected Cobbler Versions

1 component(s)
Product / Package Ecosystem Affected Versions Fixed Version
cobbler
pypi/cobbler
PyPI
≤ 2.6.11

References

NVD — CVE-2018-1000225 NVD
https://nvd.nist.gov/vuln/detail/CVE-2018-1000225
Cobbler Source Repository REPOSITORY
https://github.com/cobbler/cobbler/issues/1917
Cobbler Source Repository REPOSITORY
https://github.com/cobbler/cobbler
Cobbler Source Repository REPOSITORY
https://github.com/cobbler/cobbler/blob/master/cobbler/remote.py#L2236
movermeyer.com/2018-08-02-privileg... WEB
https://movermeyer.com/2018-08-02-privilege-escalation-exploits-in-cobblers-api

Frequently Asked Questions

What is CVE-2018-1000225?
CVE-2018-1000225 is a security vulnerability in Cobbler involving Cobbler XSS Vulnerability under CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting').
Which Cobbler versions are affected?
Affected versions include releases prior to current release patches across affected packages: cobbler.
What version fixes CVE-2018-1000225?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
Is cobbler affected?
Yes, cobbler is affected in releases prior to Latest secure release. Upgrade your dependency to Latest secure release or later.
What is the CVSS score of CVE-2018-1000225?
CVE-2018-1000225 has a CVSS v3.1 base score of 6.1 (MODERATE) with vector string CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.
What CWE is associated with CVE-2018-1000225?
CVE-2018-1000225 is classified under CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') (The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.).
How can I check PyPI dependencies for CVE-2018-1000225?
Run the dependency tree command: 'pip show cobbler'. 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-q9g5-98pm-w6q7",
  "modified" : "2023-10-06T16:36:21Z",
  "published" : "2022-05-14T02:19:50Z",
  "aliases" : [ "CVE-2018-1000225" ],
  "summary" : "Cobbler XSS Vulnerability",
  "details" : "Cobbler version Verified as present in Cobbler versions 2.6.11+, but code inspection suggests at least 2.0.0+ or possibly even older versions may be vulnerable contains a Cross Site Scripting (XSS) vulnerability in cobbler-web that can result in Privilege escalation to admin.. This attack appear to be exploitable via \"network connectivity\". Sending unauthenticated JavaScript payload to the Cobbler XMLRPC API (/cobbler_api).",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "PyPI",
      "name" : "cobbler"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "last_affected" : "2.6.11"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2018-1000225"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/cobbler/cobbler/issues/1917"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/cobbler/cobbler"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/cobbler/cobbler/blob/master/cobbler/remote.py#L2236"
  }, {
    "type" : "WEB",
    "url" : "https://movermeyer.com/2018-08-02-privilege-escalation-exploits-in-cobblers-api"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-79" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2023-07-25T19:23:19Z",
    "nvd_published_at" : "2018-08-20T20:29:00Z"
  }
}