CVE-2021-41087 (Medium) detected in github.com/in-toto/in-toto-golang-v0.2.1-0.20210627200632-886210ae2ab9

[mend-bolt-for-github]

CVE-2021-41087 - Medium Severity Vulnerability

Vulnerable Library - github.com/in-toto/in-toto-golang-v0.2.1-0.20210627200632-886210ae2ab9

A Go implementation of in-toto. in-toto is a framework to protect software supply chain integrity.

Library home page: https://proxy.golang.org/github.com/in-toto/in-toto-golang/@v/v0.2.1-0.20210627200632-886210ae2ab9.zip

Path to dependency file: /go.mod

Path to vulnerable library: /go.mod

Dependency Hierarchy:

• github.com/sigstore/cosign-v1.0.1 (Root Library)
  • ❌ github.com/in-toto/in-toto-golang-v0.2.1-0.20210627200632-886210ae2ab9 (Vulnerable Library)

Found in HEAD commit: df1f7d3f67826e841793324e4796be4fbd91c00f

Found in base branch: main

Vulnerability Details

in-toto-golang is a go implementation of the in-toto framework to protect software supply chain integrity. In affected versions authenticated attackers posing as functionaries (i.e., within a trusted set of users for a layout) are able to create attestations that may bypass DISALLOW rules in the same layout. An attacker with access to trusted private keys, may issue an attestation that contains a disallowed artifact by including path traversal semantics (e.g., foo vs dir/../foo). Exploiting this vulnerability is dependent on the specific policy applied. The problem has been fixed in version 0.3.0.

Publish Date: 2021-09-21

URL: CVE-2021-41087

CVSS 3 Score Details (5.6)

Base Score Metrics:

• Exploitability Metrics:
  • Attack Vector: Local
  • Attack Complexity: High
  • Privileges Required: Low
  • User Interaction: None
  • Scope: Changed
• Impact Metrics:
  • Confidentiality Impact: None
  • Integrity Impact: High
  • Availability Impact: None

For more information on CVSS3 Scores, click here.

Suggested Fix

Type: Upgrade version

Origin: GHSA-vrxp-mg9f-hwf3

Release Date: 2021-09-21

Fix Resolution: v0.3.0

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