CVE-2015-5301: Ipsilon Denial of Service Vulnerability

MODERATE
Advisory Identifier: GHSA-9qp4-79q8-58pr
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Advisory Summary

CVE-2015-5301 is a MODERATE denial of service vulnerability (General Security Weakness) affecting Ipsilon libraries in the PyPI ecosystem. The issue involves ipsilon denial of service by deleting a saml2 service provider (sp). Remediation is available by upgrading affected packages to version 1.0.2, 1.2.0.

CVE-2015-5301 at a Glance

CVE Identifier CVE-2015-5301
GHSA Identifier GHSA-9qp4-79q8-58pr
Severity MODERATE
CVSS v3.1 Base Score N/A
CWE Classification General Security Weakness
Affected Product Ipsilon
Package Ecosystem PyPI
Published Date
Last Updated

How to Fix CVE-2015-5301

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

ipsilon fixed: 1.0.2 
pip install ipsilon>=1.0.2
ipsilon fixed: 1.2.0 
pip install ipsilon>=1.2.0
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 ipsilon

How to Check if You Are Affected

To determine whether your Python environment is affected by CVE-2015-5301, inspect your installed packages using pip:

pip show ipsilon

Analyze the terminal output to locate any version of Ipsilon in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 1.0.2), your application is affected.

Note: The pip show ipsilon 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 Ipsilon, 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

providers/saml2/admin.py in the Identity Provider (IdP) server in Ipsilon 0.1.0 before 1.0.2 and 1.1.x before 1.1.1 does not properly check permissions, which allows remote authenticated users to cause a denial of service by deleting a SAML2 Service Provider (SP).

CVE-2015-5301 Affected Ipsilon Versions

2 component(s)
Fixed Versions:
1.0.21.2.0
Product / Package Ecosystem Affected Versions Fixed Version
ipsilon
pypi/ipsilon
PyPI
≥ 0.1.0
< 1.0.2
1.0.2
ipsilon
pypi/ipsilon
PyPI
≥ 1.1.0
< 1.2.0
1.2.0

References

NVD — CVE-2015-5301 NVD
https://nvd.nist.gov/vuln/detail/CVE-2015-5301
bugzilla.redhat.com/show_bug.cgi WEB
https://bugzilla.redhat.com/show_bug.cgi?id=1271530
fedorahosted.org/ipsilon/wiki/releas... WEB
https://fedorahosted.org/ipsilon/wiki/Releases/v1.0.2
fedorahosted.org/ipsilon/wiki/releas... WEB
https://fedorahosted.org/ipsilon/wiki/Releases/v1.1.1
Ipsilon Source Repository REPOSITORY
https://github.com/ipsilon-project/ipsilon
Ipsilon Source Repository REPOSITORY
https://github.com/pypa/advisory-database/tree/main/vulns/ipsilon/PYSEC-2015-42.yaml
pagure.io/ipsilon/9dec97c3c83... WEB
https://pagure.io/ipsilon/9dec97c3c83928d231ea10f4160523a13803e594
Ipsilon Security Information SECURITY
http://www.openwall.com/lists/oss-security/2015/10/27/8

Frequently Asked Questions

What is CVE-2015-5301?
CVE-2015-5301 is a security vulnerability in Ipsilon involving Ipsilon denial of service by deleting a SAML2 Service Provider (SP) under General Security Weakness.
Which Ipsilon versions are affected?
Affected versions include releases prior to 1.0.2, 1.2.0 across affected packages: ipsilon.
What version fixes CVE-2015-5301?
Upgrading to 1.0.2, 1.2.0 (or the latest patched release for your respective branch) resolves the vulnerability.
Is ipsilon affected?
Yes, ipsilon is affected in releases prior to 1.0.2, 1.2.0. Upgrade your dependency to 1.0.2, 1.2.0 or later.
What CWE is associated with CVE-2015-5301?
CVE-2015-5301 is classified under General Security Weakness.
How can I check PyPI dependencies for CVE-2015-5301?
Run the dependency tree command: 'pip show ipsilon'. 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-9qp4-79q8-58pr",
  "modified" : "2024-11-22T20:20:08Z",
  "published" : "2022-05-17T03:27:18Z",
  "aliases" : [ "CVE-2015-5301" ],
  "summary" : "Ipsilon denial of service by deleting a SAML2 Service Provider (SP)",
  "details" : "providers/saml2/admin.py in the Identity Provider (IdP) server in Ipsilon 0.1.0 before 1.0.2 and 1.1.x before 1.1.1 does not properly check permissions, which allows remote authenticated users to cause a denial of service by deleting a SAML2 Service Provider (SP).",
  "severity" : [ ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "PyPI",
      "name" : "ipsilon"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0.1.0"
      }, {
        "fixed" : "1.0.2"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "PyPI",
      "name" : "ipsilon"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "1.1.0"
      }, {
        "fixed" : "1.2.0"
      } ]
    } ],
    "database_specific" : {
      "last_known_affected_version_range" : "< 1.1.1"
    }
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2015-5301"
  }, {
    "type" : "WEB",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=1271530"
  }, {
    "type" : "WEB",
    "url" : "https://fedorahosted.org/ipsilon/wiki/Releases/v1.0.2"
  }, {
    "type" : "WEB",
    "url" : "https://fedorahosted.org/ipsilon/wiki/Releases/v1.1.1"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/ipsilon-project/ipsilon"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/pypa/advisory-database/tree/main/vulns/ipsilon/PYSEC-2015-42.yaml"
  }, {
    "type" : "WEB",
    "url" : "https://pagure.io/ipsilon/9dec97c3c83928d231ea10f4160523a13803e594"
  }, {
    "type" : "WEB",
    "url" : "http://www.openwall.com/lists/oss-security/2015/10/27/8"
  } ],
  "database_specific" : {
    "cwe_ids" : [ ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2024-11-22T20:20:08Z",
    "nvd_published_at" : "2015-11-17T15:59:00Z"
  }
}