APP: Cesanta Mongoose Parse MQTT Out of Bounds Read

This signature detects attempts to exploit a known vulnerability against MQTT packet parsing functionality of Cesanta Mongoose. A successful attack can result in denial-of-service condition or disclosure of sensitive information.

Extended Description

An issue was discovered in Mongoose before 6.15. The parse_mqtt() function in mg_mqtt.c has a critical heap-based buffer overflow.

Affected Products

Cesanta mongoose

References

CVE: CVE-2019-12951

Short Name
APP:MISC:CSMN-PARSE-MQTT-OOB
Severity
Minor
Recommended
True
Recommended Action
Drop
Category
APP
Keywords
Bounds CVE-2019-12951 Cesanta MQTT Mongoose Out Parse Read of
Release Date
07/25/2019
Supported Platforms

srx-branch-12.3

srx-19.3

srx-branch-19.3

vsrx3bsd-19.2

srx-branch-19.4

vsrx-19.4

mx-12.3

mx-19.4

vmx-19.4

mx-19.3

vsrx3bsd-19.4

srx-19.4

vsrx-12.3

vmx-19.3

vsrx-19.2

srx-12.3

Sigpack Version
3337
Port
TCP/1883
False Positive
Unknown
Vendors

Cesanta

CVSS Score

7.5

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