CVE-2018-7160
Public on
Last Modified:
Description
It was found that when a Node.js script is run in inspector mode, Node.js did not properly validate the Host header, leaving the inspector vulnerable to a DNS rebind attack and bypass same-origin policy. If a developer had an inspector session running, and was visiting a malicious website, the site could carry on a DNS rebind attack, allowing the site to have full access to the debugged script.
Additional information
- Bugzilla 1561979: nodejs: Inspector DNS rebinding vulnerability
- CWE-20: Improper Input Validation
- FAQ: Frequently asked questions about CVE-2018-7160
Common Vulnerability Scoring System (CVSS) Score Details
Important note
CVSS scores for open source components depend on vendor-specific factors (e.g. version or build chain). Therefore, Red Hat's score and impact rating can be different from NVD and other vendors. Red Hat remains the authoritative CVE Naming Authority (CNA) source for its products and services (see Red Hat classifications).
| Red Hat | NVD | |
|---|---|---|
CVSS v3 Base Score | 5.8 | 8.8 |
Attack Vector | Network | Network |
Attack Complexity | High | Low |
Privileges Required | None | None |
User Interaction | Required | Required |
Scope | Changed | Unchanged |
Confidentiality Impact | Low | High |
Integrity Impact | Low | High |
Availability Impact | Low | High |
CVSS v3 Vector
Red Hat: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:L
NVD: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Understanding the Weakness (CWE)
Availability
Technical Impact: DoS: Crash, Exit, or Restart; DoS: Resource Consumption (CPU); DoS: Resource Consumption (Memory)
An attacker could provide unexpected values and cause a program crash or excessive consumption of resources, such as memory and CPU.
Confidentiality
Technical Impact: Read Memory; Read Files or Directories
An attacker could read confidential data if they are able to control resource references.
Integrity,Confidentiality,Availability
Technical Impact: Modify Memory; Execute Unauthorized Code or Commands
An attacker could use malicious input to modify data or possibly alter control flow in unexpected ways, including arbitrary command execution.
Frequently Asked Questions
Why is Red Hat's CVSS v3 score or Impact different from other vendors?
My product is listed as "Under investigation" or "Affected", when will Red Hat release a fix for this vulnerability?
What can I do if my product is listed as "Will not fix"?
What can I do if my product is listed as "Fix deferred"?
What is a mitigation?
I have a Red Hat product but it is not in the above list, is it affected?
Why is my security scanner reporting my product as vulnerable to this vulnerability even though my product version is fixed or not affected?
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