Vulnerabilities in pkg:pypi/oauth2

PACKAGE
Advisory Identifier: GHSA-rv8h-p43r-4x5r
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Advisory Summary

CVE-2013-4347 is a MODERATE (CVSS 3.7) simplegeo python-oauth2 vulnerable to the vulnerability (CWE-330: Use of Insufficiently Random Values) affecting Oauth2 libraries in the PyPI ecosystem. The issue involves simplegeo python-oauth2 vulnerable to the use of insufficiently random values to generate nonces. Remediation is available by upgrading affected packages to version 1.9rc1.

2 Known Advisory Record(s)
Package Vulnerability Intelligence

pkg:pypi/oauth2

2 Known Advisory Record(s)

Vulnerability advisories affecting package pkg:pypi/oauth2. Select an advisory below to view technical details or fixes.

Advisory ID CVE / NVD Severity Summary
GHSA-rv8h-p43r-4x5r CVE-2013-4347 MODERATE SimpleGeo python-oauth2 vulnerable to the use of Insufficiently Random Values to generate nonces
GHSA-4433-4cxq-vv73 CVE-2013-4346 HIGH SimpleGeo python-oauth2 does not check the nonce allowing replay attacks

CVE-2013-4347 at a Glance

CVE Identifier CVE-2013-4347
GHSA Identifier GHSA-rv8h-p43r-4x5r
Severity MODERATE
CVSS v3.1 Base Score 3.7
CWE Classification CWE-330: Use of Insufficiently Random Values
Affected Product Oauth2
Package Ecosystem PyPI
Published Date
Last Updated

Security Impact

CVSS: 3.7

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

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

How to Fix CVE-2013-4347

To remediate this vulnerability, upgrade all affected Oauth2 dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

oauth2 fixed: 1.9rc1 
pip install oauth2>=1.9rc1
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 oauth2

How to Check if You Are Affected

To determine whether your Python environment is affected by CVE-2013-4347, inspect your installed packages using pip:

pip show oauth2

Analyze the terminal output to locate any version of Oauth2 in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 1.9rc1), your application is affected.

Note: The pip show oauth2 command checks currently installed packages in your active Python environment.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-330: Use of Insufficiently Random Values, where the product uses insufficiently random numbers or values in a security context that depends on unpredictable numbers. In Oauth2, 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

The (1) make_nonce, (2) generate_nonce, and (3) generate_verifier functions in SimpleGeo python-oauth2 uses weak random numbers to generate nonces, which makes it easier for remote attackers to guess the nonce via a brute force attack.

CVE-2013-4347 Affected Oauth2 Versions

1 component(s)
Fixed Versions:
1.9rc1
Product / Package Ecosystem Affected Versions Fixed Version
oauth2
pypi/oauth2
PyPI
< 1.9rc1
1.9rc1

References

NVD — CVE-2013-4347 NVD
https://nvd.nist.gov/vuln/detail/CVE-2013-4347
Oauth2 Source Repository REPOSITORY
https://github.com/simplegeo/python-oauth2/issues/9
Oauth2 Source Repository REPOSITORY
https://github.com/simplegeo/python-oauth2/pull/146
Security Fix Commit FIX COMMIT
https://github.com/joestump/python-oauth2/commit/82dd2cdd4954cd7b8983d5d64c0dfd9072bf4650
access.redhat.com/errata/rhsa-2015:15... WEB
https://access.redhat.com/errata/RHSA-2015:1591
access.redhat.com/errata/rhsa-2015:15... WEB
https://access.redhat.com/errata/RHSA-2015:1592
Oauth2 Security Information SECURITY
https://access.redhat.com/security/cve/CVE-2013-4347
bugzilla.redhat.com/show_bug.cgi WEB
https://bugzilla.redhat.com/show_bug.cgi?id=1007758
Oauth2 Source Repository REPOSITORY
https://github.com/joestump/python-oauth2
Oauth2 Source Repository REPOSITORY
https://github.com/pypa/advisory-database/tree/main/vulns/oauth2/PYSEC-2014-86.yaml
Oauth2 Security Information SECURITY
http://www.openwall.com/lists/oss-security/2013/09/12/7
Oauth2 Security Information SECURITY
http://www.securityfocus.com/bid/62388

Frequently Asked Questions

What is CVE-2013-4347?
CVE-2013-4347 is a security vulnerability in Oauth2 involving SimpleGeo python-oauth2 vulnerable to the use of Insufficiently Random Values to generate nonces under CWE-330: Use of Insufficiently Random Values.
Which Oauth2 versions are affected?
Affected versions include releases prior to 1.9rc1 across affected packages: oauth2.
What version fixes CVE-2013-4347?
Upgrading to 1.9rc1 (or the latest patched release for your respective branch) resolves the vulnerability.
Is oauth2 affected?
Yes, oauth2 is affected in releases prior to 1.9rc1. Upgrade your dependency to 1.9rc1 or later.
What is the CVSS score of CVE-2013-4347?
CVE-2013-4347 has a CVSS v3.1 base score of 3.7 (MODERATE) with vector string CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N.
What CWE is associated with CVE-2013-4347?
CVE-2013-4347 is classified under CWE-330: Use of Insufficiently Random Values (The product uses insufficiently random numbers or values in a security context that depends on unpredictable numbers.).
How can I check PyPI dependencies for CVE-2013-4347?
Run the dependency tree command: 'pip show oauth2'. 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-rv8h-p43r-4x5r",
  "modified" : "2024-10-07T21:06:35Z",
  "published" : "2022-05-17T03:46:28Z",
  "aliases" : [ "CVE-2013-4347" ],
  "summary" : "SimpleGeo python-oauth2 vulnerable to the use of Insufficiently Random Values to generate nonces",
  "details" : "The (1) make_nonce, (2) generate_nonce, and (3) generate_verifier functions in SimpleGeo python-oauth2 uses weak random numbers to generate nonces, which makes it easier for remote attackers to guess the nonce via a brute force attack.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N"
  }, {
    "type" : "CVSS_V4",
    "score" : "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "PyPI",
      "name" : "oauth2"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "1.9rc1"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2013-4347"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/simplegeo/python-oauth2/issues/9"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/simplegeo/python-oauth2/pull/146"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/joestump/python-oauth2/commit/82dd2cdd4954cd7b8983d5d64c0dfd9072bf4650"
  }, {
    "type" : "WEB",
    "url" : "https://access.redhat.com/errata/RHSA-2015:1591"
  }, {
    "type" : "WEB",
    "url" : "https://access.redhat.com/errata/RHSA-2015:1592"
  }, {
    "type" : "WEB",
    "url" : "https://access.redhat.com/security/cve/CVE-2013-4347"
  }, {
    "type" : "WEB",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=1007758"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/joestump/python-oauth2"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/pypa/advisory-database/tree/main/vulns/oauth2/PYSEC-2014-86.yaml"
  }, {
    "type" : "WEB",
    "url" : "http://www.openwall.com/lists/oss-security/2013/09/12/7"
  }, {
    "type" : "WEB",
    "url" : "http://www.securityfocus.com/bid/62388"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-330" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2023-08-29T18:04:35Z",
    "nvd_published_at" : "2014-05-20T14:55:00Z"
  }
}