CVE-2025-52556
CVE-2025-52556 · rfc3161-client has insufficient verification for timestamp response signatures
Esta página presenta datos de fuentes públicas de vulnerabilidades. Consulta el aviso original antes de actualizar.
rfc3161-client is a Python library implementing the Time-Stamp Protocol (TSP) described in RFC 3161. Prior to version 1.0.3, there is a flaw in the timestamp response signature verification logic. In particular, chain verification is performed against the TSR's embedded certificates up to the trusted root(s), but fails to verify the TSR's own signature against the timestamping leaf certificates. Consequently, vulnerable versions perform insufficient signature validation to properly consider a TSR verified, as the attacker can introduce any TSR signature so long as the embedded leaf chains up to some root TSA. This issue has been patched in version 1.0.3. There is no workaround for this issue.
CVSS 9.3 · Crítica · EPSS 0,2% · Corrección disponible
- Publicación
- Actualización
Pila tecnológica: python
Productos y versiones afectados
rfc3161-client
- Versiones
- < 1.0.3: Afectada
Sin corrección publicada
rfc3161-client PyPI
- Versiones
- 0.0.2
- 0.0.3
- 0.0.4
- 0.1.0
- 0.1.1
- 0.1.2
- 1.0.0
- 1.0.1
- 1.0.2
- Intervalos de versiones afectados
- ECOSYSTEM: < 1.0.3
Actualiza a 1.0.3