En resumen
- CVE-2021-41087 es una vulnerabilidad MEDIO (CVSS 6.5) que afecta a github.com/in-toto/in-toto-golang, in-toto-golang (in-toto).
- Probabilidad de explotación en los próximos 30 días (EPSS): 0.43%, mayor que el 37.5% de las vulnerabilidades.
- Solución: actualizar a 0.3.0 o posterior.
Description
Impact
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).
Patches
The problem has been fixed in version 0.3.0.
Workarounds
Exploiting this vulnerability is dependent on the specific policy applied.
For more information
If you have any questions or comments about this advisory:
NVD description
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.
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