CVE-2011-1950: Plone.app.users Plone And Plone.app.users Allow Remote Vulnerability

HIGH
Advisory Identifier: GHSA-2qx8-589j-gcpx
Share
CVSS 6.5
Published
Advisory Summary

CVE-2011-1950 is a HIGH (CVSS 6.5) plone and plone.app.users allow remote vulnerability (General Security Weakness) affecting Plone.app.users libraries in the PyPI ecosystem. The issue involves plone and plone.app.users allow remote authenticated users to modify the properties of arbitrary accounts. Remediation is available by upgrading affected packages to version 1.0.5, 1.1.1, 4.0.6, 4.1.1.

CVE-2011-1950 at a Glance

CVE Identifier CVE-2011-1950
GHSA Identifier GHSA-2qx8-589j-gcpx
Severity HIGH
CVSS v3.1 Base Score 6.5
CWE Classification General Security Weakness
Affected Product Plone.app.users
Package Ecosystem PyPI
Published Date
Last Updated

Security Impact

CVSS: 6.5

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

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 None (C:N)
Integrity High (I:H)
Availability None (A:N)

How to Fix CVE-2011-1950

To remediate this vulnerability, upgrade all affected Plone.app.users 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.app.users fixed: 1.0.5 
pip install plone.app.users>=1.0.5
plone.app.users fixed: 1.1.1 
pip install plone.app.users>=1.1.1
Plone fixed: 4.0.6 
pip install Plone>=4.0.6
Plone fixed: 4.1.1 
pip install Plone>=4.1.1
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 plone.app.users

How to Check if You Are Affected

To determine whether your Python environment is affected by CVE-2011-1950, inspect your installed packages using pip:

pip show plone.app.users

Analyze the terminal output to locate any version of Plone.app.users in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 1.0.5), your application is affected.

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

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under General Security Weakness. In Plone.app.users, 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

plone.app.users in Plone 4.0 and 4.1 allows remote authenticated users to modify the properties of arbitrary accounts via unspecified vectors, as exploited in the wild in June 2011.

CVE-2011-1950 Affected Plone.app.users Versions

4 component(s)
Fixed Versions:
1.0.51.1.14.0.64.1.1
Product / Package Ecosystem Affected Versions Fixed Version
plone.app.users
pypi/plone.app.users
PyPI
≥ 1.0a1
< 1.0.5
1.0.5
plone.app.users
pypi/plone.app.users
PyPI
≥ 1.1b1
< 1.1.1
1.1.1
Plone
pypi/Plone
PyPI
≥ 4.0.1
< 4.0.6
4.0.6
Plone
pypi/Plone
PyPI
≥ 4.1.0
< 4.1.1
4.1.1

References

NVD — CVE-2011-1950 NVD
https://nvd.nist.gov/vuln/detail/CVE-2011-1950
exchange.xforce.ibmcloud.com/vulnerabilities/676... WEB
https://exchange.xforce.ibmcloud.com/vulnerabilities/67695
GitHub Advisory / Wiki ADVISORY
https://github.com/advisories/GHSA-2qx8-589j-gcpx
Plone.app.users Source Repository REPOSITORY
https://github.com/pypa/advisory-database/tree/main/vulns/plone/PYSEC-2011-16.yaml
Plone.app.users Security Information SECURITY
http://plone.org/products/plone/security/advisories/CVE-2011-1950

Frequently Asked Questions

What is CVE-2011-1950?
CVE-2011-1950 is a security vulnerability in Plone.app.users involving Plone and plone.app.users allow remote authenticated users to modify the properties of arbitrary accounts under General Security Weakness.
Which Plone.app.users versions are affected?
Affected versions include releases prior to 1.0.5, 1.1.1, 4.0.6, 4.1.1 across affected packages: plone.app.users, Plone.
What version fixes CVE-2011-1950?
Upgrading to 1.0.5, 1.1.1, 4.0.6, 4.1.1 (or the latest patched release for your respective branch) resolves the vulnerability.
Is plone.app.users affected?
Yes, plone.app.users is affected in releases prior to 1.0.5, 1.1.1. Upgrade your dependency to 1.0.5, 1.1.1 or later.
Is Plone affected?
Yes, Plone is affected in releases prior to 4.0.6, 4.1.1. Upgrade your dependency to 4.0.6, 4.1.1 or later.
What is the CVSS score of CVE-2011-1950?
CVE-2011-1950 has a CVSS v3.1 base score of 6.5 (HIGH) with vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N.
What CWE is associated with CVE-2011-1950?
CVE-2011-1950 is classified under General Security Weakness.
How can I check PyPI dependencies for CVE-2011-1950?
Run the dependency tree command: 'pip show plone.app.users'. 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-2qx8-589j-gcpx",
  "modified" : "2024-10-09T21:30:27Z",
  "published" : "2018-07-23T20:26:45Z",
  "aliases" : [ "CVE-2011-1950" ],
  "summary" : "Plone and plone.app.users allow remote authenticated users to modify the properties of arbitrary accounts",
  "details" : "plone.app.users in Plone 4.0 and 4.1 allows remote authenticated users to modify the properties of arbitrary accounts via unspecified vectors, as exploited in the wild in June 2011.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N"
  }, {
    "type" : "CVSS_V4",
    "score" : "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:A"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "PyPI",
      "name" : "plone.app.users"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "1.0a1"
      }, {
        "fixed" : "1.0.5"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "PyPI",
      "name" : "plone.app.users"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "1.1b1"
      }, {
        "fixed" : "1.1.1"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "PyPI",
      "name" : "Plone"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "4.0.1"
      }, {
        "fixed" : "4.0.6"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "PyPI",
      "name" : "Plone"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "4.1.0"
      }, {
        "fixed" : "4.1.1"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2011-1950"
  }, {
    "type" : "WEB",
    "url" : "https://exchange.xforce.ibmcloud.com/vulnerabilities/67695"
  }, {
    "type" : "ADVISORY",
    "url" : "https://github.com/advisories/GHSA-2qx8-589j-gcpx"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/pypa/advisory-database/tree/main/vulns/plone/PYSEC-2011-16.yaml"
  }, {
    "type" : "WEB",
    "url" : "http://plone.org/products/plone/security/advisories/CVE-2011-1950"
  } ],
  "database_specific" : {
    "cwe_ids" : [ ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2020-06-16T20:52:51Z",
    "nvd_published_at" : null
  }
}