fkie_cve-2021-3618
Vulnerability from fkie_nvd
Published
2022-03-23 20:15
Modified
2024-11-21 06:21
Severity ?
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.
References
| ▶ | URL | Tags | |
|---|---|---|---|
| secalert@redhat.com | https://alpaca-attack.com/ | Third Party Advisory | |
| secalert@redhat.com | https://bugzilla.redhat.com/show_bug.cgi?id=1975623 | Issue Tracking, Patch, Third Party Advisory | |
| secalert@redhat.com | https://lists.debian.org/debian-lts-announce/2022/11/msg00031.html | Mailing List, Third Party Advisory | |
| af854a3a-2127-422b-91ae-364da2661108 | https://alpaca-attack.com/ | Third Party Advisory | |
| af854a3a-2127-422b-91ae-364da2661108 | https://bugzilla.redhat.com/show_bug.cgi?id=1975623 | Issue Tracking, Patch, Third Party Advisory | |
| af854a3a-2127-422b-91ae-364da2661108 | https://lists.debian.org/debian-lts-announce/2022/11/msg00031.html | Mailing List, Third Party Advisory |
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| f5 | nginx | * | |
| sendmail | sendmail | * | |
| vsftpd_project | vsftpd | * | |
| fedoraproject | fedora | 33 | |
| fedoraproject | fedora | 34 | |
| fedoraproject | fedora | 35 | |
| debian | debian_linux | 10.0 |
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"id": "CVE-2021-3618",
"lastModified": "2024-11-21T06:21:59.713",
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"vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:N",
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
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