ALPACA is an application layer protocol content confusion attack, exploiting TLS servers implementing different protocols but using compatible certificates, such as multi-domain or wildcard certificates. A MiTM attacker having access to victim's traffic at the TCP/IP layer can redirect traffic from one subdomain to another, resulting in a valid TLS session. This breaks the authentication of TLS and cross-protocol attacks may be possible where the behavior of one protocol service may compromise the other at the application layer.
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published:

Updated: 2024-08-03T17:01:07.459Z

Reserved: 2021-06-24T00:00:00

Link: CVE-2021-3618

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2022-03-23T20:15:09.833

Modified: 2024-11-21T06:21:59.713

Link: CVE-2021-3618

cve-icon Redhat

Severity : Moderate

Publid Date: 2021-06-09T00:00:00Z

Links: CVE-2021-3618 - Bugzilla

cve-icon OpenCVE Enrichment

No data.