CVE-2017-1000484: Plone Plone Open Redirect Vulnerability

MODERATE
Advisory Identifier: GHSA-xvwv-6wvx-px9x
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CVSS 6.1
CWE-601
Published
Advisory Summary

CVE-2017-1000484 is a MODERATE (CVSS 6.1) plone open redirect vulnerability (CWE-601: URL Redirection to Untrusted Site ('Open Redirect')) affecting Plone libraries in the PyPI ecosystem. The issue involves plone open redirect. Remediation is available by upgrading affected packages to version 4.3.16, 5.1.0.

CVE-2017-1000484 at a Glance

CVE Identifier CVE-2017-1000484
GHSA Identifier GHSA-xvwv-6wvx-px9x
Severity MODERATE
CVSS v3.1 Base Score 6.1
CWE Classification CWE-601: URL Redirection to Untrusted Site ('Open Redirect')
Affected Product Plone
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-2017-1000484

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

Plone fixed: 4.3.16 
pip install Plone>=4.3.16
Plone fixed: 5.1.0 
pip install Plone>=5.1.0
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 Plone

How to Check if You Are Affected

To determine whether your Python environment is affected by CVE-2017-1000484, inspect your installed packages using pip:

pip show Plone

Analyze the terminal output to locate any version of Plone in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 4.3.16), your application is affected.

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

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-601: URL Redirection to Untrusted Site ('Open Redirect'), where the web application accepts a user-controlled input that specifies a link to an external site, and uses that link in a redirect. In Plone, 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

By linking to a specific url in Plone 2.5-5.1rc1 with a parameter, an attacker could send you to his own website. On its own this is not so bad: the attacker could more easily link directly to his own website instead. But in combination with another attack, you could be sent to the Plone login form and login, then get redirected to the specific url, and then get a second redirect to the attacker website.

CVE-2017-1000484 Affected Plone Versions

2 component(s)
Fixed Versions:
4.3.165.1.0
Product / Package Ecosystem Affected Versions Fixed Version
Plone
pypi/Plone
PyPI
≥ 2.5
< 4.3.16
4.3.16
Plone
pypi/Plone
PyPI
≥ 5.0.0
< 5.1.0
5.1.0

References

NVD — CVE-2017-1000484 NVD
https://nvd.nist.gov/vuln/detail/CVE-2017-1000484
Plone Source Repository REPOSITORY
https://github.com/plone/Products.CMFPlone/issues/2232
GitHub Advisory / Wiki ADVISORY
https://github.com/advisories/GHSA-xvwv-6wvx-px9x
Plone Source Repository REPOSITORY
https://github.com/plone/Plone
Plone Source Repository REPOSITORY
https://github.com/pypa/advisory-database/tree/main/vulns/plone/PYSEC-2018-73.yaml
Plone Security Information SECURITY
https://plone.org/security/hotfix/20171128/an-open-redirection-when-calling-a-specific-url

Frequently Asked Questions

What is CVE-2017-1000484?
CVE-2017-1000484 is a security vulnerability in Plone involving Plone Open Redirect under CWE-601: URL Redirection to Untrusted Site ('Open Redirect').
Which Plone versions are affected?
Affected versions include releases prior to 4.3.16, 5.1.0 across affected packages: Plone.
What version fixes CVE-2017-1000484?
Upgrading to 4.3.16, 5.1.0 (or the latest patched release for your respective branch) resolves the vulnerability.
Is Plone affected?
Yes, Plone is affected in releases prior to 4.3.16, 5.1.0. Upgrade your dependency to 4.3.16, 5.1.0 or later.
What is the CVSS score of CVE-2017-1000484?
CVE-2017-1000484 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-2017-1000484?
CVE-2017-1000484 is classified under CWE-601: URL Redirection to Untrusted Site ('Open Redirect') (The web application accepts a user-controlled input that specifies a link to an external site, and uses that link in a redirect.).
How can I check PyPI dependencies for CVE-2017-1000484?
Run the dependency tree command: 'pip show Plone'. 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-xvwv-6wvx-px9x",
  "modified" : "2024-10-18T21:54:05Z",
  "published" : "2019-01-04T17:47:21Z",
  "aliases" : [ "CVE-2017-1000484" ],
  "summary" : "Plone Open Redirect",
  "details" : "By linking to a specific url in Plone 2.5-5.1rc1 with a parameter, an attacker could send you to his own website. On its own this is not so bad: the attacker could more easily link directly to his own website instead. But in combination with another attack, you could be sent to the Plone login form and login, then get redirected to the specific url, and then get a second redirect to the attacker website. ",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"
  }, {
    "type" : "CVSS_V4",
    "score" : "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "PyPI",
      "name" : "Plone"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "2.5"
      }, {
        "fixed" : "4.3.16"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "PyPI",
      "name" : "Plone"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "5.0.0"
      }, {
        "fixed" : "5.1.0"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2017-1000484"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/plone/Products.CMFPlone/issues/2232"
  }, {
    "type" : "ADVISORY",
    "url" : "https://github.com/advisories/GHSA-xvwv-6wvx-px9x"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/plone/Plone"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/pypa/advisory-database/tree/main/vulns/plone/PYSEC-2018-73.yaml"
  }, {
    "type" : "WEB",
    "url" : "https://plone.org/security/hotfix/20171128/an-open-redirection-when-calling-a-specific-url"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-601" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2020-06-16T22:04:39Z",
    "nvd_published_at" : null
  }
}