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 ?
No CVSS data available.
CWE
Assigner
References
Impacted products
Vendor Product Version
n/a ALPACA Affected: vsftpd 3.0.4, nginx 1.21.0, sendmail 8.17
Show details on NVD website
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    "dateReserved": "2021-06-24T00:00:00.000Z",
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.