Denial of service in Node.js



| Updated: 2020-03-20
Risk Medium
Patch available YES
Number of vulnerabilities 2
CVE-ID CVE-2019-5737
CVE-2019-5739
CWE-ID CWE-400
CWE-399
Exploitation vector Network
Public exploit N/A
Vulnerable software
 Node.js
Server applications / Web servers

Vendor Node.js Foundation

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Resource exhaustion

EUVDB-ID: #VU26284

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-2019-5737

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 incorrect processing of keep-alive packets. A remote attacker can send keep-alive packets very slowly and trigger resource exhaustion.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Node.js: 6.0.0 - 11.10.0

CPE2.3 External links

https://lists.opensuse.org/opensuse-security-announce/2019-03/msg00041.html
https://lists.opensuse.org/opensuse-security-announce/2019-04/msg00046.html
https://lists.opensuse.org/opensuse-security-announce/2019-04/msg00059.html
https://access.redhat.com/errata/RHSA-2019:1821
https://nodejs.org/en/blog/vulnerability/february-2019-security-releases/
https://security.netapp.com/advisory/ntap-20190502-0008/


Q & A

Can this vulnerability be exploited remotely?

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

How the attacker can exploit this vulnerability?

The attacker would have to send a specially crafted request to the affected application in order to exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

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

2) Resource management error

EUVDB-ID: #VU26292

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-2019-5739

CWE-ID: CWE-399 - Resource Management Errors

Exploit availability: No

Description

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

The vulnerability exists due to a very long keep-alive window of 2 minutes that Node.js uses by default for every HTTP and HTTPS connection. A remote attacker can create a bige amount of keep-alive connections and consume all available resources on the system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Node.js: 4.0.0 - 6.16.0

CPE2.3 External links

https://nodejs.org/en/blog/vulnerability/february-2019-security-releases/


Q & A

Can this vulnerability be exploited remotely?

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

How the attacker can exploit this vulnerability?

The attacker would have to send a specially crafted request to the affected application in order to exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

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



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