CVE-2021-3618 (GCVE-0-2021-3618)

Vulnerability from cvelistv5 – Published: 2022-03-23 00:00 – Updated: 2024-08-03 17:01
VLAI
Summary
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.
Severity
7.4 (High)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
CWE
Assigner
redhat CNA under the redhat root
CNA scorecard B 82/100 over 1030 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
n/a ALPACA Affected: vsftpd 3.0.4, nginx 1.21.0, sendmail 8.17
Show details on NVD website
To clipboard 

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