Signature Detail
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Short Name |
APP:MISC:MQTT-OF-DOS |
|---|---|
Severity |
Minor |
Recommended |
No |
Recommended Action |
Drop |
Category |
APP |
Keywords |
Eclipse Mosquitto MQTT SUBSCRIBE Topic Stack Overflow |
Release Date |
2019/11/14 |
Update Number |
3225 |
Supported Platforms |
srx-17.3+, srx-branch-17.4+, vsrx-15.1+, vsrx3bsd-18.2+ |
APP: Eclipse Mosquitto MQTT SUBSCRIBE Topic Stack Overflow
This signature detects attempts to exploit a known vulnerability against Eclipse Mosquitto. A successful attack can result in a denial-of-service condition.
Extended Description
In Eclipse Mosquitto 1.5.0 to 1.6.5 inclusive, if a malicious MQTT client sends a SUBSCRIBE packet containing a topic that consists of approximately 65400 or more '/' characters, i.e. the topic hierarchy separator, then a stack overflow will occur.
Affected Products
- Eclipse mosquitto 1.5
- Eclipse mosquitto 1.5.1
- Eclipse mosquitto 1.5.2
- Eclipse mosquitto 1.5.3
- Eclipse mosquitto 1.5.4
- Eclipse mosquitto 1.5.5
- Eclipse mosquitto 1.5.6
- Eclipse mosquitto 1.5.7
- Eclipse mosquitto 1.5.8
- Eclipse mosquitto 1.6
- Eclipse mosquitto 1.6.1
- Eclipse mosquitto 1.6.2
- Eclipse mosquitto 1.6.3
- Eclipse mosquitto 1.6.4
- Eclipse mosquitto 1.6.5
References
- CVE: CVE-2019-11779