CVE-2021-3618
N/A
N/A
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.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| n/a | ALPACA | vsftpd 3.0.4, nginx 1.21.0, sendmail 8.17 | affected |
Weaknesses
- CWE-295: CWE-295
ADP Enrichment
CVE Program Container
Additional References
- https://bugzilla.redhat.com/show_bug.cgi?id=1975623
- https://alpaca-attack.com/
- https://lists.debian.org/debian-lts-announce/2022/11/msg00031.html
References
- https://bugzilla.redhat.com/show_bug.cgi?id=1975623
- https://alpaca-attack.com/
- https://lists.debian.org/debian-lts-announce/2022/11/msg00031.html
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