CVE-2021-41087
21.09.2021, 21:15
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.
| Vendor | Product | Version |
|---|---|---|
| in-toto | in-toto-golang | 𝑥 < 0.3.0 |
𝑥
= Vulnerable software versions
Common Weakness Enumeration
- CWE-345 - Insufficient Verification of Data AuthenticityThe software does not sufficiently verify the origin or authenticity of data, in a way that causes it to accept invalid data.
- CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')The software 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 software 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.
References