CVE-2015-4000

Published May 21, 2015

Last updated 24 days ago

Overview

Description
The TLS protocol 1.2 and earlier, when a DHE_EXPORT ciphersuite is enabled on a server but not on a client, does not properly convey a DHE_EXPORT choice, which allows man-in-the-middle attackers to conduct cipher-downgrade attacks by rewriting a ClientHello with DHE replaced by DHE_EXPORT and then rewriting a ServerHello with DHE_EXPORT replaced by DHE, aka the "Logjam" issue.
Source
cve@mitre.org
NVD status
Analyzed

Social media

Hype score
Not currently trending

Risk scores

CVSS 3.0

Type
Primary
Base score
3.7
Impact score
1.4
Exploitability score
2.2
Vector string
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N
Severity
LOW

CVSS 2.0

Type
Primary
Base score
4.3
Impact score
2.9
Exploitability score
8.6
Vector string
AV:N/AC:M/Au:N/C:N/I:P/A:N

Weaknesses

nvd@nist.gov
CWE-310

Configurations

References