Description

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.

Severity

 

CVSS Version 3.x CVSS Version 2.0

CVSS 3.x Severity and Metrics:

CNA:  GitHub, Inc.

Base Score:  5.5 MEDIUM

Vector:  CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

NVD Analysts use publicly available information to associate vector strings and CVSS scores. We also display any CVSS information provided within the CVE List from the CNA.

Note: The NVD and the CNA have provided the same score. When this occurs only the CNA information is displayed, but the Acceptance Level icon for the CNA is given a checkmark to signify NVD concurrence.

CVSS 2.0 Severity and Metrics:

NIST: NVD

Base Score: N/A

NVD assessment not yet provided.

NVD Analysts use publicly available information to associate vector strings and CVSS scores. We also display any CVSS information provided within the CVE List from the CNA.

Note: NVD Analysts have not published a CVSS score for this CVE at this time. NVD Analysts use publicly available information at the time of analysis to associate CVSS vector strings.

References to Advisories, Solutions, and Tools

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Hyperlink	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

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-610	Externally Controlled Reference to a Resource in Another Sphere	NIST
CWE-15	External Control of System or Configuration Setting	GitHub, Inc.

Known Affected Software Configurations Switch to CPE 2.2

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Change History

1 change records found show changes

Initial Analysis by NIST 5/18/2023 5:22:11 PM

Action	Type	Old Value	New Value
Added	CPE Configuration		OR *cpe:2.3:a:in-toto_project:in-toto:*:*:*:*:*:*:*:* versions up to (including) 1.4.0
Added	CVSS V3.1		NIST AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
Added	CWE		NIST CWE-610
Changed	Reference Type	https://github.com/in-toto/docs/security/advisories/GHSA-p86f-xmg6-9q4x No Types Assigned	https://github.com/in-toto/docs/security/advisories/GHSA-p86f-xmg6-9q4x Vendor Advisory
Changed	Reference Type	https://github.com/in-toto/in-toto/commit/3a21d84f40811b7d191fa7bd17265c1f99599afd No Types Assigned	https://github.com/in-toto/in-toto/commit/3a21d84f40811b7d191fa7bd17265c1f99599afd Patch
Changed	Reference Type	https://github.com/in-toto/in-toto/security/advisories/GHSA-wc64-c5rv-32pf No Types Assigned	https://github.com/in-toto/in-toto/security/advisories/GHSA-wc64-c5rv-32pf Vendor Advisory
Changed	Reference Type	https://specifications.freedesktop.org/basedir-spec/basedir-spec-latest.html No Types Assigned	https://specifications.freedesktop.org/basedir-spec/basedir-spec-latest.html Product