Vulnerability identifier: #VU78253

Vulnerability risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2019-11777

CWE-ID: CWE-346

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
paho.mqtt.java
Other software / Other software solutions

Vendor: Eclipse

Description

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to when connecting to an MQTT server using TLS and setting a host name verifier, the result of that verification is not checked. A remote attacker can gain unauthorized access to sensitive information on the system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

paho.mqtt.java: 1.2.0

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External links
http://bugs.eclipse.org/bugs/show_bug.cgi?id=549934

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.