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CVE-2020-12872

Date: May 15, 2020

yaws_config.erl in Yaws through 2.0.2 and/or 2.0.7 loads obsolete TLS ciphers, as demonstrated by ones that allow Sweet32 attacks, if running on an Erlang/OTP virtual machine with a version less than 21.0.

Language: ERLANG

Severity Score

5.5

Related Resources (9)

Url: https://medium.com/@charlielabs101/cve-2020-12872-df315411aa70

Url: https://github.com/erlyaws/yaws/issues/402

Url: https://github.com/erlyaws/yaws/releases

Url: https://github.com/erlyaws/yaws/blob/c0fd79f17d52628fcec527da7fa3e788c283c445/src/yaws_config.erl#L2068-L2075

Url: https://nvd.nist.gov/vuln/detail/CVE-2020-12872

Url: https://sweet32.info/

Url: https://medium.com/%40charlielabs101/cve-2020-12872-df315411aa70

Url: https://security-tracker.debian.org/tracker/CVE-2020-12872

Url: https://www.mend.io/vulnerability-database/CVE-2020-12872

Severity Score

5.5

Weakness Type (CWE)

Inadequate Encryption Strength

CWE-326

CVSS v3.1

Base Score:	5.5
Attack Vector (AV):	LOCAL
Attack Complexity (AC):	LOW
Privileges Required (PR):	LOW
User Interaction (UI):	NONE
Scope (S):	UNCHANGED
Confidentiality (C):	HIGH
Integrity (I):	NONE
Availability (A):	NONE

CVSS v2

Base Score:	2.1
Access Vector (AV):	LOCAL
Access Complexity (AC):	LOW
Authentication (AU):	NONE
Confidentiality (C):	PARTIAL
Integrity (I):	NONE
Availability (A):	NONE
Additional information:

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