Security Bulletin: Security vulnerabilities in IBM® SDK for Node.js™ affect IBM® SDK for Node.js™ in IBM Cloud (CVE-2018-7158, CVE-2018-7159, CVE-2018-7160)

Summary

Security vulnerabilities have been reported in IBM® SDK for Node.js™ that affect IBM® SDK for Node.js™ in IBM Cloud.

Vulnerability Details

CVEID: CVE-2018-7158 DESCRIPTION: Node.js path module is vulnerable to a denial of service. By sending a specially crafted file path, an attacker could exploit this vulnerability to cause a regular expression denial of service.
CVSS Base Score: 5.9
CVSS Temporal Score: See <https://exchange.xforce.ibmcloud.com/vulnerabilities/143449&gt; for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H)

CVEID: CVE-2018-7159 DESCRIPTION: Node.js http module could allow a remote attacker to bypass security restrictions, caused by the acceptance of incorrect Content-Length values, containing spaces within the value, in HTTP headers. An attacker could exploit this vulnerability to confuse the script and launch further attacks on the system.
CVSS Base Score: 5.3
CVSS Temporal Score: See <https://exchange.xforce.ibmcloud.com/vulnerabilities/143448&gt; for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N)

CVEID: CVE-2018-7160 DESCRIPTION: Node.js inspector module could allow a remote attacker to bypass security restrictions, caused by the failure to properly validate the Host header. An attacker could exploit this vulnerability to bypass same-origin policy and conduct a DNS rebinding attack.
CVSS Base Score: 5.8
CVSS Temporal Score: See <https://exchange.xforce.ibmcloud.com/vulnerabilities/143447&gt; for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:L)

Affected Products and Versions

These vulnerabilities affect IBM SDK for Node.js v6.12.0.0 and earlier releases.
These vulnerabilities affect IBM SDK for Node.js v8.9.0.0 and earlier releases.

You can also find this file through the command-line Cloud Foundry client by running the following command:

cf ssh <appname> -c cat staging_info.yml

Look for the following lines:
{“detected_buildpack”:“SDK for Node.js™ (ibm-node.js-xxx, buildpack-v3.xxx)”,“start_command”:“./vendor/initial_startup.rb”}

If the Node.js engine version is not at least v6.14.3 or v8.11.3 your application may be vulnerable.

Remediation/Fixes

The fixes for these vulnerabilities are included in IBM SDK for Node.js v6.14.3 and subsequent releases.
The fixes for these vulnerabilities are included in IBM SDK for Node.js v8.11.3 and subsequent releases.

To upgrade to the latest version of the Node.js runtime, please specify the latest Node.js runtime in your package.json file for your application:

“engines”: {
“node”: “>=6.14.3”
},
_or _
“engines”: {
“node”: “>=8.11.3”
},

You will then need to restage (or re-push) your application using the IBM SDK for Node.js Buildpack v3.21.

Workarounds and Mitigations

none

Monitor IBM Cloud Status for Future Security Bulletins

Monitor the security notifications on the IBM Cloud Status page to be advised of future security bulletins.

References

Complete CVSS v3 Guide
On-line Calculator v3

Off

Related Information

IBM Secure Engineering Web Portal
IBM Product Security Incident Response Blog

Change History

07 Aug 2018: original document published

*The CVSS Environment Score is customer environment specific and will ultimately impact the Overall CVSS Score. Customers can evaluate the impact of this vulnerability in their environments by accessing the links in the Reference section of this Security Bulletin.

Disclaimer

Review the IBM security bulletin disclaimer and definitions regarding your responsibilities for assessing potential impact of security vulnerabilities to your environment.

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