CVE Vulnerability

CVE-2018-18765

An exploitable arbitrary memory read vulnerability exists in the MQTT packet-parsing functionality of Cesanta Mongoose 6.13. It is a heap-based buffer over-read in mg_mqtt_next_subscribe_topic. A specially crafted MQTT SUBSCRIBE packet can cause an arbitrary out-of-bounds memory read potentially resulting in information disclosure and denial of service. An attacker needs to send a specially crafted MQTT packet over the network to trigger this vulnerability.

6.4 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 10 / Impact : 4.9

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact PARTIAL

Integrity Impact NONE

Availability Impact PARTIAL

Scope

9.1 /10

CVSS v3.0 : CRITICAL

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 5.2

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://github.com/TiffanyBlue/PoCbyMyself/blob/master/mongoose6.13/mqtt/Cesanta%20Mongoose%20MQTT%20mg_mqtt_next_subscribe_topic%20heap%20buffer%20overflow.md Exploit Third Party Advisory
https://twitter.com/thracky/status/1059472674940993541 Third Party Advisory
Configurations

Configuration 1

cpe:2.3:a:cesanta:mongoose:6.13:*:*:*:*:*:*:*
Information

Published : 2018-10-29 12:29

Updated : 2018-12-07 06:00

NVD link : CVE-2018-18765

Mitre link : CVE-2018-18765

Products Affected
No products.
CWE
CWE-125

Out-of-bounds Read