Denial of service in moscaJS aedes

1) Resource exhaustion

EUVDB-ID: #VU46287

Risk: Medium

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2020-13410

CWE-ID: CWE-400 - Resource exhaustion

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to the "lib/write.js" does not properly consider exceptions during the writing of an invalid packet to a stream. A remote attacker can trigger resource exhaustion and perform a denial of service (DoS) attack.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Aedes: 0.1.0 - 0.42.0

CPE2.3

• cpe:2.3:a:moscajs:aedes:0.1.0:*:*:*:*:*:*:*
• cpe:2.3:a:moscajs:aedes:0.2.0:*:*:*:*:*:*:*
• cpe:2.3:a:moscajs:aedes:0.3.0:*:*:*:*:*:*:*

External links

https://github.com/moscajs/aedes/pull/493
https://payatu.com/advisory/dos-in-aedes-mqtt-broker

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.