Description
Logstash 1.4.x before 1.4.5 and 1.5.x before 1.5.4 with Lumberjack output or the Logstash forwarder does not validate SSL/TLS certificates from the Logstash server, which might allow attackers to obtain sensitive information via a man-in-the-middle attack.
References (5)
Core 5
Core References
Third Party Advisory, VDB Entry vdb-entry
x_refsource_bid
http://www.securityfocus.com/bid/76455
Vendor Advisory x_refsource_confirm
https://www.elastic.co/blog/logstash-1-5-4-and-1-4-5-released
Third Party Advisory, VDB Entry mailing-list
x_refsource_bugtraq
http://www.securityfocus.com/archive/1/536294/100/0/threaded
Third Party Advisory, VDB Entry x_refsource_misc
http://packetstormsecurity.com/files/133269/Logstash-1.5.3-Man-In-The-Middle.html
Third Party Advisory, VDB Entry mailing-list
x_refsource_bugtraq
http://www.securityfocus.com/archive/1/536858/100/0/threaded
Scores
CVSS v3
5.9
EPSS
0.0031
EPSS Percentile
53.9%
Attack Vector
NETWORK
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
Details
CWE
CWE-295
Status
published
Products (9)
elastic/logstash
1.4.0
elastic/logstash
1.4.1
elastic/logstash
1.4.2
elasticsearch/logstash
1.4.3
elasticsearch/logstash
1.4.4
elasticsearch/logstash
1.5.0
elasticsearch/logstash
1.5.1
elasticsearch/logstash
1.5.2
elasticsearch/logstash
1.5.3
Published
Aug 09, 2017
Tracked Since
Feb 18, 2026