Executive Summary

Informations
Name CVE-2020-1968 First vendor Publication 2020-09-09
Vendor Cve Last vendor Modification 2020-09-26

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
Overall CVSS Score 3.7
Base Score 3.7 Environmental Score 3.7
impact SubScore 1.4 Temporal Score 3.7
Exploitabality Sub Score 2.2
 
Attack Vector Network Attack Complexity High
Privileges Required None User Interaction None
Scope Unchanged Confidentiality Impact Low
Integrity Impact None Availability Impact None
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:N/AC:M/Au:N/C:P/I:N/A:N)
Cvss Base Score 4.3 Attack Range Network
Cvss Impact Score 2.9 Attack Complexity Medium
Cvss Expoit Score 8.6 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

The Raccoon attack exploits a flaw in the TLS specification which can lead to an attacker being able to compute the pre-master secret in connections which have used a Diffie-Hellman (DH) based ciphersuite. In such a case this would result in the attacker being able to eavesdrop on all encrypted communications sent over that TLS connection. The attack can only be exploited if an implementation re-uses a DH secret across multiple TLS connections. Note that this issue only impacts DH ciphersuites and not ECDH ciphersuites. This issue affects OpenSSL 1.0.2 which is out of support and no longer receiving public updates. OpenSSL 1.1.1 is not vulnerable to this issue. Fixed in OpenSSL 1.0.2w (Affected 1.0.2-1.0.2v).

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-1968

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-326 Inadequate Encryption Strength

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 341

Sources (Detail)

Source Url
CONFIRM https://security.netapp.com/advisory/ntap-20200911-0004/
https://www.openssl.org/news/secadv/20200909.txt
MLIST https://lists.debian.org/debian-lts-announce/2020/09/msg00016.html
UBUNTU https://usn.ubuntu.com/4504-1/

Alert History

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Date Informations
2020-09-26 09:22:49
  • Multiple Updates
2020-09-17 21:23:16
  • Multiple Updates
2020-09-16 17:22:50
  • Multiple Updates
2020-09-11 17:22:47
  • Multiple Updates
2020-09-09 21:23:08
  • First insertion