CVE-2015-8747: Radicale Radicale Vulnerable To Arbitrary File Vulnerability

CRITICAL
Advisory Identifier: GHSA-fgqv-96v9-w23m
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CVSS 10.0
CWE-20
Published
Advisory Summary

CVE-2015-8747 is a CRITICAL (CVSS 10.0) radicale vulnerable to arbitrary file vulnerability (CWE-20: Improper Input Validation) affecting Radicale libraries in the PyPI ecosystem. The issue involves radicale vulnerable to arbitrary file read or write. Remediation is available by upgrading affected packages to version 1.1.

CVE-2015-8747 at a Glance

CVE Identifier CVE-2015-8747
GHSA Identifier GHSA-fgqv-96v9-w23m
Severity CRITICAL
CVSS v3.1 Base Score 10.0
CWE Classification CWE-20: Improper Input Validation
Affected Product Radicale
Package Ecosystem PyPI
Published Date
Last Updated

Security Impact

CVSS: 10.0

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:N/S:C/C:H/I:H/A:N).

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

How to Fix CVE-2015-8747

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

Radicale fixed: 1.1 
pip install Radicale>=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 Radicale

How to Check if You Are Affected

To determine whether your Python environment is affected by CVE-2015-8747, inspect your installed packages using pip:

pip show Radicale

Analyze the terminal output to locate any version of Radicale in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 1.1), your application is affected.

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

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-20: Improper Input Validation, where the product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. In Radicale, 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 multifilesystem storage backend in Radicale before 1.1 allows remote attackers to read or write to arbitrary files via a crafted component name.

CVE-2015-8747 Affected Radicale Versions

1 component(s)
Fixed Versions:
1.1
Product / Package Ecosystem Affected Versions Fixed Version
Radicale
pypi/Radicale
PyPI
< 1.1
1.1

References

NVD — CVE-2015-8747 NVD
https://nvd.nist.gov/vuln/detail/CVE-2015-8747
Radicale Source Repository REPOSITORY
https://github.com/Kozea/Radicale/pull/343
Security Fix Commit FIX COMMIT
https://github.com/Kozea/Radicale/commit/18c88642fb19ee1480690e51fff9605ecc6fdab5
Security Fix Commit FIX COMMIT
https://github.com/Unrud/Radicale/commit/bcaf452e516c02c9bed584a73736431c5e8831f1
Radicale Source Repository REPOSITORY
https://github.com/Kozea/Radicale
Radicale Source Repository REPOSITORY
https://github.com/pypa/advisory-database/tree/main/vulns/radicale/PYSEC-2016-36.yaml
Radicale Security Information SECURITY
https://web.archive.org/web/20200804235922/http://www.securityfocus.com/bid/80255
lists.fedoraproject.org/pipermail/package-a... WEB
http://lists.fedoraproject.org/pipermail/package-announce/2016-January/175738.html
lists.fedoraproject.org/pipermail/package-a... WEB
http://lists.fedoraproject.org/pipermail/package-announce/2016-January/175776.html
Radicale Security Information SECURITY
http://www.debian.org/security/2016/dsa-3462
Radicale Security Information SECURITY
http://www.openwall.com/lists/oss-security/2016/01/05/7
Radicale Security Information SECURITY
http://www.openwall.com/lists/oss-security/2016/01/06/4
Radicale Security Information SECURITY
http://www.openwall.com/lists/oss-security/2016/01/06/7

Frequently Asked Questions

What is CVE-2015-8747?
CVE-2015-8747 is a security vulnerability in Radicale involving Radicale vulnerable to arbitrary file read or write under CWE-20: Improper Input Validation.
Which Radicale versions are affected?
Affected versions include releases prior to 1.1 across affected packages: Radicale.
What version fixes CVE-2015-8747?
Upgrading to 1.1 (or the latest patched release for your respective branch) resolves the vulnerability.
Is Radicale affected?
Yes, Radicale is affected in releases prior to 1.1. Upgrade your dependency to 1.1 or later.
What is the CVSS score of CVE-2015-8747?
CVE-2015-8747 has a CVSS v3.1 base score of 10.0 (CRITICAL) with vector string CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N.
What CWE is associated with CVE-2015-8747?
CVE-2015-8747 is classified under CWE-20: Improper Input Validation (The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.).
How can I check PyPI dependencies for CVE-2015-8747?
Run the dependency tree command: 'pip show Radicale'. 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-fgqv-96v9-w23m",
  "modified" : "2024-10-16T21:21:35Z",
  "published" : "2022-05-17T03:29:51Z",
  "aliases" : [ "CVE-2015-8747" ],
  "summary" : "Radicale vulnerable to arbitrary file read or write",
  "details" : "The multifilesystem storage backend in Radicale before 1.1 allows remote attackers to read or write to arbitrary files via a crafted component name.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "PyPI",
      "name" : "Radicale"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "1.1"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2015-8747"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/Kozea/Radicale/pull/343"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/Kozea/Radicale/commit/18c88642fb19ee1480690e51fff9605ecc6fdab5"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/Unrud/Radicale/commit/bcaf452e516c02c9bed584a73736431c5e8831f1"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/Kozea/Radicale"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/pypa/advisory-database/tree/main/vulns/radicale/PYSEC-2016-36.yaml"
  }, {
    "type" : "WEB",
    "url" : "https://web.archive.org/web/20200804235922/http://www.securityfocus.com/bid/80255"
  }, {
    "type" : "WEB",
    "url" : "http://lists.fedoraproject.org/pipermail/package-announce/2016-January/175738.html"
  }, {
    "type" : "WEB",
    "url" : "http://lists.fedoraproject.org/pipermail/package-announce/2016-January/175776.html"
  }, {
    "type" : "WEB",
    "url" : "http://www.debian.org/security/2016/dsa-3462"
  }, {
    "type" : "WEB",
    "url" : "http://www.openwall.com/lists/oss-security/2016/01/05/7"
  }, {
    "type" : "WEB",
    "url" : "http://www.openwall.com/lists/oss-security/2016/01/06/4"
  }, {
    "type" : "WEB",
    "url" : "http://www.openwall.com/lists/oss-security/2016/01/06/7"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-20" ],
    "severity" : "CRITICAL",
    "github_reviewed" : true,
    "github_reviewed_at" : "2024-04-29T16:31:01Z",
    "nvd_published_at" : "2016-02-03T18:59:00Z"
  }
}