CVE-2011-4596: Nova Path Traversal Vulnerability

MODERATE
Advisory Identifier: GHSA-qr62-r9xc-r2gj
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CWE-22
Published
Advisory Summary

CVE-2011-4596 is a MODERATE path traversal vulnerability (CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')) affecting Nova libraries in the PyPI ecosystem. The issue involves openstack nova multiple directory traversal vulnerabilities. Remediation is available by upgrading affected packages to version 12.0.0a0.

CVE-2011-4596 at a Glance

CVE Identifier CVE-2011-4596
GHSA Identifier GHSA-qr62-r9xc-r2gj
Severity MODERATE
CVSS v3.1 Base Score N/A
CWE Classification CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Affected Product Nova
Package Ecosystem PyPI
Published Date
Last Updated

How to Fix CVE-2011-4596

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

nova fixed: 12.0.0a0 
pip install nova>=12.0.0a0
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 nova

How to Check if You Are Affected

To determine whether your Python environment is affected by CVE-2011-4596, inspect your installed packages using pip:

pip show nova

Analyze the terminal output to locate any version of Nova in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 12.0.0a0), your application is affected.

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

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal'), where the product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. In Nova, 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

Multiple directory traversal vulnerabilities in OpenStack Nova before 2011.3.1, when the EC2 API and the S3/RegisterImage image-registration method are enabled, allow remote authenticated users to overwrite arbitrary files via a crafted (1) tarball or (2) manifest.

CVE-2011-4596 Affected Nova Versions

1 component(s)
Fixed Versions:
12.0.0a0
Product / Package Ecosystem Affected Versions Fixed Version
nova
pypi/nova
PyPI
< 12.0.0a0
12.0.0a0

References

NVD — CVE-2011-4596 NVD
https://nvd.nist.gov/vuln/detail/CVE-2011-4596
Security Fix Commit FIX COMMIT
https://github.com/openstack/nova/commit/76363226bd8533256f7795bba358d7f4b8a6c9e6
Security Fix Commit FIX COMMIT
https://github.com/openstack/nova/commit/ad3241929ea00569c74505ed002208ce360c667e
bugs.launchpad.net/nova/+bug/885167 WEB
https://bugs.launchpad.net/nova/+bug/885167
bugs.launchpad.net/nova/+bug/894755 WEB
https://bugs.launchpad.net/nova/+bug/894755
Nova Source Repository REPOSITORY
https://github.com/openstack/nova
lists.launchpad.net/openstack/msg06105.... WEB
https://lists.launchpad.net/openstack/msg06105.html

Frequently Asked Questions

What is CVE-2011-4596?
CVE-2011-4596 is a security vulnerability in Nova involving OpenStack Nova Multiple directory traversal vulnerabilities under CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal').
Which Nova versions are affected?
Affected versions include releases prior to 12.0.0a0 across affected packages: nova.
What version fixes CVE-2011-4596?
Upgrading to 12.0.0a0 (or the latest patched release for your respective branch) resolves the vulnerability.
Is nova affected?
Yes, nova is affected in releases prior to 12.0.0a0. Upgrade your dependency to 12.0.0a0 or later.
What CWE is associated with CVE-2011-4596?
CVE-2011-4596 is classified under CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') (The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.).
How can I check PyPI dependencies for CVE-2011-4596?
Run the dependency tree command: 'pip show nova'. 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-qr62-r9xc-r2gj",
  "modified" : "2024-05-14T21:13:50Z",
  "published" : "2022-05-14T01:58:50Z",
  "aliases" : [ "CVE-2011-4596" ],
  "summary" : "OpenStack Nova Multiple directory traversal vulnerabilities",
  "details" : "Multiple directory traversal vulnerabilities in OpenStack Nova before 2011.3.1, when the EC2 API and the S3/RegisterImage image-registration method are enabled, allow remote authenticated users to overwrite arbitrary files via a crafted (1) tarball or (2) manifest.",
  "severity" : [ ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "PyPI",
      "name" : "nova"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "12.0.0a0"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2011-4596"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/openstack/nova/commit/76363226bd8533256f7795bba358d7f4b8a6c9e6"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/openstack/nova/commit/ad3241929ea00569c74505ed002208ce360c667e"
  }, {
    "type" : "WEB",
    "url" : "https://bugs.launchpad.net/nova/+bug/885167"
  }, {
    "type" : "WEB",
    "url" : "https://bugs.launchpad.net/nova/+bug/894755"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/openstack/nova"
  }, {
    "type" : "WEB",
    "url" : "https://lists.launchpad.net/openstack/msg06105.html"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-22" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2024-05-14T21:13:50Z",
    "nvd_published_at" : "2011-12-23T22:55:00Z"
  }
}