APP: Cesanta Mongoose NULL Pointer Dereference DoS
This signature detects attempts to exploit a known vulnerability against Cesanta Mongooses MQTT protocol. A successful attack can result in a denial-of-service condition.
Extended Description
An exploitable NULL pointer dereference vulnerability exists in the MQTT packet parsing functionality of Cesanta Mongoose 6.8. An MQTT SUBSCRIBE packet can cause a NULL pointer dereference leading to server crash and denial of service. An attacker needs to send a specially crafted MQTT packet over the network to trigger this vulnerability.
Affected Products
Cesanta mongoose
References
CVE: CVE-2017-2893
Short Name
APP:MISC:MQTT-SBSCRB-CM-DOS
Severity
Minor
Recommended
False
Recommended Action
Drop
Category
APP
Keywords
CVE-2017-2893 Cesanta Dereference DoS Mongoose NULL Pointer
Release Date
05/06/2019
Supported Platforms
mx-19.3
vmx-19.3
vsrx-19.2
srx-19.3
srx-branch-19.3
vsrx3bsd-19.2
srx-19.4
vsrx3bsd-19.4
srx-branch-19.4
vsrx-19.4
vmx-19.4
mx-19.4
srxevo-25.4
vsrx-26.2
srx-26.2
srx-branch-26.2
vsrx3bsd-26.2
mx-12.3
srx-12.3
srx-branch-12.3
vsrx-12.3
Sigpack Version
3809
Port
TCP/1883
False Positive
Unknown
Vendors
Cesanta
CVSS Score
5.0