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CVE-2021-3618 EPSS 2.0%

ALPACA is an application layer protocol content confusion attack, exploiting TLS servers implementing different…

Official description · CVE.org

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.

Breakdown
20.1 / 100
Exploited
Not confirmed
Reports
1
Tactics
0/15

Disclosed on 23 Mar 2022. No public exploit code or confirmed exploitation is recorded.

techniques

No techniques linked

No ATT&CK techniques are linked to this CVE yet. MITRE CTID has not mapped it, and no report passage in the corpus ties it to a technique.

What security researchers reported

Named in 1 threat report
1 reportTrustwave

Reports are matched by finding the exact id CVE-2021-3618 in their text; nobody has reviewed the match. One passage is shown per report, at most 320 characters, linked to the original.

References

3 links, grouped by NVD tag
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