CVE-2023-32076: In toto In-toto Vulnerable To Configuration Read Vulnerability
MODERATECVE-2023-32076 is a MODERATE (CVSS 5.5) in-toto vulnerable to configuration read vulnerability (CWE-15: External Control of System or Configuration Setting) affecting In toto libraries in the PyPI ecosystem. The issue involves in-toto vulnerable to configuration read from local directory. Remediation is available by upgrading affected packages to version 2.0.0.
CVE-2023-32076 at a Glance
Security Impact
CVSS: 5.5
The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N).
How to Fix CVE-2023-32076
To remediate this vulnerability, upgrade all affected In toto dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.
pip install in-toto>=2.0.0Run the following command in your project directory to verify that all resolved dependencies use the patched release:
pip show in-totoHow to Check if You Are Affected
To determine whether your Python environment is affected by CVE-2023-32076, inspect your installed packages using pip:
pip show in-totoAnalyze the terminal output to locate any version of In toto in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 2.0.0), your application is affected.
Note: The pip show in-toto command checks currently installed packages in your active Python environment.
Technical Details
Vulnerability Mechanism & Technical Analysis
This vulnerability is classified under CWE-15: External Control of System or Configuration Setting, where one or more system settings or configuration elements can be externally controlled by a user. In In toto, 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
CVE-2023-32076 Affected In toto Versions
1 component(s)| Product / Package | Ecosystem | Affected Versions | Fixed Version |
|---|---|---|---|
|
in-toto
|
PyPI |
< 2.0.0
|
2.0.0
|
References
Frequently Asked Questions
What is CVE-2023-32076?
Which In toto versions are affected?
What version fixes CVE-2023-32076?
Is in-toto affected?
What is the CVSS score of CVE-2023-32076?
What CWE is associated with CVE-2023-32076?
How can I check PyPI dependencies for CVE-2023-32076?
Machine-readable OSV JSON
OSV v1.5 Schema
{
"schema_version" : "1.4.0",
"id" : "GHSA-wc64-c5rv-32pf",
"modified" : "2023-05-11T20:47:56Z",
"published" : "2023-05-11T20:47:56Z",
"aliases" : [ "CVE-2023-32076" ],
"summary" : "in-toto vulnerable to Configuration Read From Local Directory",
"details" : "### Impact\n\nThe in-toto configuration is read from various directories and allows users to configure the behavior of the framework. The files are from directories following the XDG base directory specification [1]. Among the files read is `.in_totorc` which is a hidden file in the directory in which in-toto is run. If an attacker controls the inputs to a supply chain step, they can mask their activities by also passing in an `.in_totorc` file that includes the necessary exclude patterns and settings.\n\nRC files are widely used in other systems [2] and security issues have been discovered in their implementations as well [3]. We found in our conversations with in-toto adopters that `in_totorc` is not their preferred way to configure in-toto. As none of the options supported in `in_totorc` is unique, and can be set elsewhere using API parameters or CLI arguments, we decided to drop support for `in_totorc`.\n\n### Other Recommendations\n\nSandbox functionary code as recommended in https://github.com/in-toto/docs/security/advisories/GHSA-p86f-xmg6-9q4x.\n\n### References\n\n[1] https://specifications.freedesktop.org/basedir-spec/basedir-spec-latest.html\n[2] https://spec.editorconfig.org/\n[3] https://github.blog/2022-04-12-git-security-vulnerability-announced/\n",
"severity" : [ {
"type" : "CVSS_V3",
"score" : "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N"
} ],
"affected" : [ {
"package" : {
"ecosystem" : "PyPI",
"name" : "in-toto"
},
"ranges" : [ {
"type" : "ECOSYSTEM",
"events" : [ {
"introduced" : "0"
}, {
"fixed" : "2.0.0"
} ]
} ],
"database_specific" : {
"last_known_affected_version_range" : "<= 1.4.0"
}
} ],
"references" : [ {
"type" : "WEB",
"url" : "https://github.com/in-toto/docs/security/advisories/GHSA-p86f-xmg6-9q4x"
}, {
"type" : "WEB",
"url" : "https://github.com/in-toto/in-toto/security/advisories/GHSA-wc64-c5rv-32pf"
}, {
"type" : "ADVISORY",
"url" : "https://nvd.nist.gov/vuln/detail/CVE-2023-32076"
}, {
"type" : "WEB",
"url" : "https://github.com/in-toto/in-toto/commit/3a21d84f40811b7d191fa7bd17265c1f99599afd"
}, {
"type" : "PACKAGE",
"url" : "https://github.com/in-toto/in-toto"
}, {
"type" : "WEB",
"url" : "https://github.com/in-toto/in-toto/releases/tag/v2.0.0"
}, {
"type" : "WEB",
"url" : "https://github.com/pypa/advisory-database/tree/main/vulns/in-toto/PYSEC-2023-63.yaml"
}, {
"type" : "WEB",
"url" : "https://specifications.freedesktop.org/basedir-spec/basedir-spec-latest.html"
} ],
"database_specific" : {
"cwe_ids" : [ "CWE-15", "CWE-610" ],
"severity" : "MODERATE",
"github_reviewed" : true,
"github_reviewed_at" : "2023-05-11T20:47:56Z",
"nvd_published_at" : "2023-05-10T18:15:10Z"
}
}