CVE-2024-32977: OctoPrint Authentication Bypass Vulnerability

HIGH
Advisory Identifier: GHSA-2vjq-hg5w-5gm7
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CVSS 7.1
CWE-290
Published
Advisory Summary

CVE-2024-32977 is a HIGH (CVSS 7.1) authentication bypass vulnerability (CWE-290: Authentication Bypass by Spoofing) affecting OctoPrint libraries in the PyPI ecosystem. The issue involves octoprint has an authentication bypass via x-forwarded-for header when autologinlocal is enabled. Remediation is available by upgrading affected packages to version 1.10.1.

CVE-2024-32977 at a Glance

CVE Identifier CVE-2024-32977
GHSA Identifier GHSA-2vjq-hg5w-5gm7
Severity HIGH
CVSS v3.1 Base Score 7.1
CWE Classification CWE-290: Authentication Bypass by Spoofing
Affected Product OctoPrint
Package Ecosystem PyPI
Published Date
Last Updated

Security Impact

CVSS: 7.1

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

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

How to Fix CVE-2024-32977

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

OctoPrint fixed: 1.10.1 
pip install OctoPrint>=1.10.1
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 OctoPrint

How to Check if You Are Affected

To determine whether your Python environment is affected by CVE-2024-32977, inspect your installed packages using pip:

pip show OctoPrint

Analyze the terminal output to locate any version of OctoPrint in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 1.10.1), your application is affected.

Note: The pip show OctoPrint command checks currently installed packages in your active Python environment.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-290: Authentication Bypass by Spoofing, where this attack-focused weakness is caused by incorrectly implemented authentication schemes that are subject to spoofing attacks. In OctoPrint, 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

### Impact OctoPrint versions up until and including 1.10.0 contain a vulnerability that allows an unauthenticated attacker to completely bypass the authentication **if the `autologinLocal` option is enabled** within `config.yaml`, even if they come from networks that are not configured as `localNetworks`, by spoofing their IP via the `X-Forwarded-For` header. If autologin is not enabled, this vulnerability does not have any impact. ### Patches The vulnerability has been patched in version 1.10.1. ### Workaround Until the patch has been applied, OctoPrint administrators who have autologin enabled on their instances should disable it and/or to make the instance inaccessible from potentially hostile networks like the internet. ### PoC 1. Enable the `autologinAs` configuration within the `accessControl` section in the [OctoPrint yaml configuration file](https://docs.octoprint.org/en/master/configuration/config_yaml.html#access-control) 2. Set your browser to add the `X-Forwarded-For: 127.0.0.1` header to HTTP requests. For example, this can be done using proxy software like Burp Suite. Alternatively, there are browser extensions such as https://github.com/MisterPhilip/x-forwarded-for, but I haven't tried them. 3. Navigate to OctoPrint and note that it logs you in automatically. ### Credits This vulnerability was discovered and responsibly disclosed to OctoPrint by Jacopo Tediosi.

CVE-2024-32977 Affected OctoPrint Versions

1 component(s)
Fixed Versions:
1.10.1
Product / Package Ecosystem Affected Versions Fixed Version
OctoPrint
pypi/OctoPrint
PyPI
< 1.10.1
1.10.1

References

GitHub Advisory / Wiki ADVISORY
https://github.com/OctoPrint/OctoPrint/security/advisories/GHSA-2vjq-hg5w-5gm7
NVD — CVE-2024-32977 NVD
https://nvd.nist.gov/vuln/detail/CVE-2024-32977
Security Fix Commit FIX COMMIT
https://github.com/OctoPrint/OctoPrint/commit/5afbec8d23508edc25b0f1bdef1620580136add4
OctoPrint Source Repository REPOSITORY
https://github.com/OctoPrint/OctoPrint
OctoPrint Source Repository REPOSITORY
https://github.com/pypa/advisory-database/tree/main/vulns/octoprint/PYSEC-2024-237.yaml

Frequently Asked Questions

What is CVE-2024-32977?
CVE-2024-32977 is a security vulnerability in OctoPrint involving OctoPrint has an Authentication Bypass via X-Forwarded-For Header when autologinLocal is enabled under CWE-290: Authentication Bypass by Spoofing.
Which OctoPrint versions are affected?
Affected versions include releases prior to 1.10.1 across affected packages: OctoPrint.
What version fixes CVE-2024-32977?
Upgrading to 1.10.1 (or the latest patched release for your respective branch) resolves the vulnerability.
Is OctoPrint affected?
Yes, OctoPrint is affected in releases prior to 1.10.1. Upgrade your dependency to 1.10.1 or later.
What is the CVSS score of CVE-2024-32977?
CVE-2024-32977 has a CVSS v3.1 base score of 7.1 (HIGH) with vector string CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L.
What CWE is associated with CVE-2024-32977?
CVE-2024-32977 is classified under CWE-290: Authentication Bypass by Spoofing (This attack-focused weakness is caused by incorrectly implemented authentication schemes that are subject to spoofing attacks.).
How can I check PyPI dependencies for CVE-2024-32977?
Run the dependency tree command: 'pip show OctoPrint'. 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-2vjq-hg5w-5gm7",
  "modified" : "2025-03-05T19:27:36Z",
  "published" : "2024-05-14T20:13:47Z",
  "aliases" : [ "CVE-2024-32977" ],
  "summary" : "OctoPrint has an Authentication Bypass via X-Forwarded-For Header when autologinLocal is enabled",
  "details" : "### Impact\n\nOctoPrint versions up until and including 1.10.0 contain a vulnerability that allows an unauthenticated attacker to completely bypass the authentication **if the `autologinLocal` option is enabled** within `config.yaml`, even if they come from networks that are not configured as `localNetworks`, by spoofing their IP via the `X-Forwarded-For` header.\n\nIf autologin is not enabled, this vulnerability does not have any impact.\n\n### Patches\n\nThe vulnerability has been patched in version 1.10.1.\n\n### Workaround\n\nUntil the patch has been applied, OctoPrint administrators who have autologin enabled on their instances should disable it and/or to make the instance inaccessible from potentially hostile networks like the internet.\n\n### PoC\n\n1. Enable the `autologinAs` configuration within the `accessControl` section in the [OctoPrint yaml configuration file](https://docs.octoprint.org/en/master/configuration/config_yaml.html#access-control)\n2. Set your browser to add the `X-Forwarded-For: 127.0.0.1` header to HTTP requests. For example, this can be done using proxy software like Burp Suite. Alternatively, there are browser extensions such as https://github.com/MisterPhilip/x-forwarded-for, but I haven't tried them.\n3. Navigate to OctoPrint and note that it logs you in automatically.\n\n### Credits\n\nThis vulnerability was discovered and responsibly disclosed to OctoPrint by Jacopo Tediosi.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "PyPI",
      "name" : "OctoPrint"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "1.10.1"
      } ]
    } ],
    "database_specific" : {
      "last_known_affected_version_range" : "<= 1.10.0"
    }
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/OctoPrint/OctoPrint/security/advisories/GHSA-2vjq-hg5w-5gm7"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2024-32977"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/OctoPrint/OctoPrint/commit/5afbec8d23508edc25b0f1bdef1620580136add4"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/OctoPrint/OctoPrint"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/pypa/advisory-database/tree/main/vulns/octoprint/PYSEC-2024-237.yaml"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-290" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2024-05-14T20:13:47Z",
    "nvd_published_at" : "2024-05-14T16:17:12Z"
  }
}