CVE-2015-5619

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.

• CWE-295

• http://packetstormsecurity.com/files/133269/Logstash-1.5.3-Man-In-The-Middle.htmlThird Party Advisory, VDB Entry
• 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/76455Third Party Advisory, VDB Entry
• https://www.elastic.co/blog/logstash-1-5-4-and-1-4-5-releasedVendor Advisory
• http://packetstormsecurity.com/files/133269/Logstash-1.5.3-Man-In-The-Middle.htmlThird Party Advisory, VDB Entry
• 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/76455Third Party Advisory, VDB Entry
• https://www.elastic.co/blog/logstash-1-5-4-and-1-4-5-releasedVendor Advisory

Published

Aug 9, 2017

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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