Denial of service in Node.js



Risk Low
Patch available YES
Number of vulnerabilities 4
CVE-ID CVE-2018-7161
CVE-2018-7167
CVE-2018-7164
CVE-2018-7162
CWE-ID CWE-20
CWE-400
Exploitation vector Network
Public exploit N/A
Vulnerable software
Subscribe 		Node.js
Server applications / Web servers

Vendor Node.js Foundation

Security Bulletin

This security bulletin contains information about 4 vulnerabilities.

1) Improper input validation

EUVDB-ID: #VU13376

Risk: Low

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

CVE-ID: CVE-2018-7161

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a remote attacker to cause DoS condition on the target system.

The vulnerability exists due to a cleanup bug where objects are used in native code after they are no longer available when the affected software interacts with an HTTP/2 server. A remote attacker can send a specially crafted request that submits malicious input to the targeted node server that provides an HTTP/2 server and cause the node server to crash.

Mitigation

Update to version 10.4.1.

Vulnerable software versions

Node.js: 8.0.0 - 10.4.0

CPE2.3 External links

http://nodejs.org/en/blog/vulnerability/june-2018-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.

2) Improper input validation

EUVDB-ID: #VU13379

Risk: Low

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

CVE-ID: CVE-2018-7167

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a remote attacker to cause DoS condition on the target system.

The vulnerability exists due to insufficient validation of user-supplied input. A remote attacker can supply Calling Buffer.fill() or Buffer.alloc() with some parameters and cause the server to hang.

Mitigation

Update to version 10.4.1.

Vulnerable software versions

Node.js: 6.0.0 - 10.4.0

CPE2.3 External links

http://nodejs.org/en/blog/vulnerability/june-2018-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.

3) Resource exhaustion

EUVDB-ID: #VU13378

Risk: Low

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

CVE-ID: CVE-2018-7164

CWE-ID: CWE-400 - Resource exhaustion

Exploit availability: No

Description

The vulnerability allows a remote attacker to cause DoS condition on the target system.

The vulnerability exists due to insufficient input validation when reading from the network into JavaScript using the net.Socket object directly as a stream. A remote attacker can send tiny chunks of data in short succession, trigger resource exhaustion and cause the server to crash.

Mitigation

Update to version 10.4.1.

Vulnerable software versions

Node.js: 9.0.0 - 10.4.0

CPE2.3 External links

http://nodejs.org/en/blog/vulnerability/june-2018-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.

4) Improper input validation

EUVDB-ID: #VU13377

Risk: Low

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

CVE-ID: CVE-2018-7162

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a remote attacker to cause DoS condition on the target system.

The vulnerability exists due to insufficient input validation when TLS implementation. A remote attacker can send a specially crafted request that submits malicious input to the targeted node server and cause it to crash.

Mitigation

Update to version 10.4.1.

Vulnerable software versions

Node.js: 9.0.0 - 10.4.0

CPE2.3 External links

http://nodejs.org/en/blog/vulnerability/june-2018-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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