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.
Weakness
The product does not validate, or incorrectly validates, a certificate.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Logstash | Elastic | 1.4.0 (including) | 1.4.0 (including) |
| Logstash | Elastic | 1.4.1 (including) | 1.4.1 (including) |
| Logstash | Elastic | 1.4.2 (including) | 1.4.2 (including) |
| Logstash | Elasticsearch | 1.4.3 (including) | 1.4.3 (including) |
| Logstash | Elasticsearch | 1.4.4 (including) | 1.4.4 (including) |
| Logstash | Elasticsearch | 1.5.0 (including) | 1.5.0 (including) |
| Logstash | Elasticsearch | 1.5.1 (including) | 1.5.1 (including) |
| Logstash | Elasticsearch | 1.5.2 (including) | 1.5.2 (including) |
| Logstash | Elasticsearch | 1.5.3 (including) | 1.5.3 (including) |
Potential Mitigations
Related Attack Patterns
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
- 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