CVE-2023-32076

in-toto is a framework to protect supply chain integrity. The 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. In versions 1.4.0 and prior, 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. RC files are widely used in other systems and security issues have been discovered in their implementations as well. Maintainers found in their 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, the maintainers decided to drop support for `in_totorc`. in-toto's `user_settings` module has been dropped altogether in commit 3a21d84f40811b7d191fa7bd17265c1f99599afd. Users may also sandbox functionary code as a security measure.

CVSS v3 5.5 MEDIUM

5.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact HIGH

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/in-toto/docs/security/advisories/GHSA-p86f-xmg6-9q4x	Vendor Advisory
https://github.com/in-toto/in-toto/commit/3a21d84f40811b7d191fa7bd17265c1f99599afd	Patch
https://github.com/in-toto/in-toto/security/advisories/GHSA-wc64-c5rv-32pf	Vendor Advisory
https://specifications.freedesktop.org/basedir-spec/basedir-spec-latest.html	Product

Configurations

Configuration 1 (hide)

cpe:2.3:a:in-toto_project:in-toto:*:*:*:*:*:*:*:*

History

No history.

Information

Published : 2023-05-10 18:15

Updated : 2024-02-28 20:13

NVD link : CVE-2023-32076

Mitre link : CVE-2023-32076

CVE.ORG link : CVE-2023-32076

JSON object : View

Products Affected

in-toto_project

in-toto

CWE

CWE-610

Externally Controlled Reference to a Resource in Another Sphere

CWE-15

External Control of System or Configuration Setting

{"id": "CVE-2023-32076", "metrics": {"cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.5, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "LOW", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 1.8}, {"type": "Secondary", "source": "security-advisories@github.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.5, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "LOW", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 1.8}]}, "published": "2023-05-10T18:15:10.410", "references": [{"url": "https://github.com/in-toto/docs/security/advisories/GHSA-p86f-xmg6-9q4x", "tags": ["Vendor Advisory"], "source": "security-advisories@github.com"}, {"url": "https://github.com/in-toto/in-toto/commit/3a21d84f40811b7d191fa7bd17265c1f99599afd", "tags": ["Patch"], "source": "security-advisories@github.com"}, {"url": "https://github.com/in-toto/in-toto/security/advisories/GHSA-wc64-c5rv-32pf", "tags": ["Vendor Advisory"], "source": "security-advisories@github.com"}, {"url": "https://specifications.freedesktop.org/basedir-spec/basedir-spec-latest.html", "tags": ["Product"], "source": "security-advisories@github.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-610"}]}, {"type": "Secondary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-15"}]}], "descriptions": [{"lang": "en", "value": "in-toto is a framework to protect supply chain integrity. The 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. In versions 1.4.0 and prior, 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. RC files are widely used in other systems and security issues have been discovered in their implementations as well. Maintainers found in their 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, the maintainers decided to drop support for `in_totorc`. in-toto's `user_settings` module has been dropped altogether in commit 3a21d84f40811b7d191fa7bd17265c1f99599afd. Users may also sandbox functionary code as a security measure."}], "lastModified": "2023-05-18T21:22:11.723", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:in-toto_project:in-toto:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "D9CFCBAC-E44D-46C9-936E-32A421601351", "versionEndIncluding": "1.4.0"}], "operator": "OR"}]}], "sourceIdentifier": "security-advisories@github.com"}