Vulnerability CVE-2015-5619
Published: 2017-08-09

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.

See advisories in our WLB2 database:
Topic
Author
Date
Low
Logstash 1.5.3 Man-In-The-Middle
Markus Frosch
24.08.2015

Type:

CWE-295

 (Certificate Issues)

CVSS2 => (AV:N/AC:M/Au:N/C:P/I:N/A:N)

CVSS Base Score
Impact Subscore
Exploitability Subscore
4.3/10
2.9/10
8.6/10
Exploit range
Attack complexity
Authentication
Remote
Medium
No required
Confidentiality impact
Integrity impact
Availability impact
Partial
None
None
Affected software
Elasticsearch -> Logstash 

 References:
http://packetstormsecurity.com/files/133269/Logstash-1.5.3-Man-In-The-Middle.html
http://www.securityfocus.com/archive/1/536294/100/0/threaded
http://www.securityfocus.com/archive/1/536858/100/0/threaded
http://www.securityfocus.com/bid/76455
https://www.elastic.co/blog/logstash-1-5-4-and-1-4-5-released
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