CVE-2021-3618

HIGH Year: 2021
CVSS v3 Score
7.4
High
CVSS v2 Score
5.8
Medium
Weakness Type
CWE-295
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Vulnerability Description

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.

Related Vulnerabilities

CVE-2012-0955

HIGH
CVSS:7.4(High)

software-properties was vulnerable to a person-in-the-middle attack due to incorrect TLS certificate validation in softwareproperties/ppa.py. software-properties didn't check TLS certificates under py...

CWE-2952012

CVE-2012-5817

HIGH
CVSS:7.4(High)

Codehaus XFire 1.2.6 and earlier, as used in the Amazon EC2 API Tools Java library and other products, does not verify that the server hostname matches a domain name in the subject's Common Name (CN) ...

CWE-2952012

CVE-2012-5819

HIGH
CVSS:7.4(High)

FilesAnywhere does not verify that the server hostname matches a domain name in the subject's Common Name (CN) or subjectAltName field of the X.509 certificate, which allows man-in-the-middle attacker...

CWE-2952012

CVE-2012-5822

HIGH
CVSS:7.4(High)

The contribution feature in Zamboni does not verify that the server hostname matches a domain name in the subject's Common Name (CN) or subjectAltName field of the X.509 certificate, which allows man-...

CWE-2952012

CVE-2013-7201

HIGH
CVSS:7.4(High)

WebHybridClient.java in PayPal 5.3 and earlier for Android ignores SSL errors, which allows man-in-the-middle attackers to spoof servers and obtain sensitive information.

CWE-2952013

CVE-2014-1266

HIGH
CVSS:7.4(High)

The SSLVerifySignedServerKeyExchange function in libsecurity_ssl/lib/sslKeyExchange.c in the Secure Transport feature in the Data Security component in Apple iOS 6.x before 6.1.6 and 7.x before 7.0.6,...

CWE-2952014