Vulnerability Details

SSL/TLS: Deprecated TLSv1.0 and TLSv1.1 Protocol Detection

Published: 2021-03-25 10:41:42
CVE Author: NIST National Vulnerability Database

CVSS Base Vector:
AV:N/AC:M/Au:N/C:P/I:N/A:N

Summary:
It was possible to detect the usage of the deprecated TLSv1.0 and/or TLSv1.1 protocol on this system.

Detection Method:
Check the used TLS protocols of the services provided by this system.

Technical Details:
The TLSv1.0 and TLSv1.1 protocols containing known cryptographic flaws like: - CVE-2011-3389: Browser Exploit Against SSL/TLS (BEAST) - CVE-2015-0204: Factoring Attack on RSA-EXPORT Keys Padding Oracle On Downgraded Legacy Encryption (FREAK)

Impact:
An attacker might be able to use the known cryptographic flaws to eavesdrop the connection between clients and the service to get access to sensitive data transferred within the secured connection. Furthermore newly uncovered vulnerabilities in this protocols won't receive security updates anymore.

Affected Versions:
All services providing an encrypted communication using the TLSv1.0 and/or TLSv1.1 protocols.

Recommendations:
It is recommended to disable the deprecated TLSv1.0 and/or TLSv1.1 protocols in favor of the TLSv1.2+ protocols. Please see the references for more information.

Detection Type:
remote_app

Solution Type:
Mitigation

NIST (National Institute of Standards and Technology) NVD (National Vulnerability Database)

https://nvd.nist.gov/vuln/detail/CVE-2011-3389
https://nvd.nist.gov/vuln/detail/CVE-2014-3566

References:

https://datatracker.ietf.org/doc/rfc8996/
https://www.enisa.europa.eu/activities/identity-and-trust/library/deliverables/algorithms-key-sizes-and-parameters-report
https://bettercrypto.org/
https://mozilla.github.io/server-side-tls/ssl-config-generator/
https://vnhacker.blogspot.com/2011/09/beast.html
https://web.archive.org/web/20201108095603/https://censys.io/blog/freak

Severity
Medium
CVSS Score
4.3
Published
2021-03-25
Modified
2021-03-26
Category
SSL and TLS

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