CVE-2018-8145: Microsoft.ChakraCore ChakraCore Information Disclosure Vulnerability Vulnerability

HIGH
Advisory Identifier: GHSA-xphq-3x6q-q2qq
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CVSS 7.5
CWE-200
Published
Advisory Summary

CVE-2018-8145 is a HIGH (CVSS 7.5) chakracore information disclosure vulnerability vulnerability (CWE-200: Exposure of Sensitive Information to an Unauthorized Actor) affecting Microsoft.ChakraCore libraries in the NuGet ecosystem. The issue involves chakracore information disclosure vulnerability. Remediation is available by upgrading affected packages to version 1.8.4.

CVE-2018-8145 at a Glance

CVE Identifier CVE-2018-8145
GHSA Identifier GHSA-xphq-3x6q-q2qq
Severity HIGH
CVSS v3.1 Base Score 7.5
CWE Classification CWE-200: Exposure of Sensitive Information to an Unauthorized Actor
Affected Product Microsoft.ChakraCore
Package Ecosystem NuGet
Published Date
Last Updated

Security Impact

CVSS: 7.5

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H).

Attack Vector Network (AV:N)
Attack Complexity High (AC:H)
Privileges Required None (PR:N)
User Interaction Required (UI:R)
Scope Unchanged (S:U)
Confidentiality High (C:H)
Integrity High (I:H)
Availability High (A:H)

How to Fix CVE-2018-8145

To remediate this vulnerability, upgrade all affected Microsoft.ChakraCore dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

Microsoft.ChakraCore fixed: 1.8.4 
Upgrade Microsoft.ChakraCore to 1.8.4
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

inspect dependencies for Microsoft.ChakraCore

How to Check if You Are Affected

To determine whether your application is affected by CVE-2018-8145, inspect your project dependencies for Microsoft.ChakraCore:

inspect dependencies for Microsoft.ChakraCore

Analyze the terminal output to locate any version of Microsoft.ChakraCore in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 1.8.4), your application is affected.

Note: Verify declared build manifests and deployed runtime container environments.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-200: Exposure of Sensitive Information to an Unauthorized Actor, where the product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. In Microsoft.ChakraCore, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

An information disclosure vulnerability exists when Chakra improperly discloses the contents of its memory, which could provide an attacker with information to further compromise the user's computer or data, aka "Chakra Scripting Engine Memory Corruption Vulnerability." This affects ChakraCore, Internet Explorer 11, Microsoft Edge, Internet Explorer 10. This CVE ID is unique from CVE-2018-0943, CVE-2018-8130, CVE-2018-8133, CVE-2018-8177.

CVE-2018-8145 Affected Microsoft.ChakraCore Versions

1 component(s)
Fixed Versions:
1.8.4
Product / Package Ecosystem Affected Versions Fixed Version
Microsoft.ChakraCore
nuget/Microsoft.ChakraCore
NuGet
< 1.8.4
1.8.4

References

NVD — CVE-2018-8145 NVD
https://nvd.nist.gov/vuln/detail/CVE-2018-8145
Microsoft.ChakraCore Source Repository REPOSITORY
https://github.com/chakra-core/ChakraCore
Microsoft.ChakraCore Security Information SECURITY
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8145
Microsoft.ChakraCore Security Information SECURITY
https://web.archive.org/web/20210124164314/http://www.securityfocus.com/bid/103986
Microsoft.ChakraCore Security Information SECURITY
https://web.archive.org/web/20211204185256/http://www.securitytracker.com/id/1040844
www.exploit-db.com/exploits/45011 WEB
https://www.exploit-db.com/exploits/45011

Frequently Asked Questions

What is CVE-2018-8145?
CVE-2018-8145 is a security vulnerability in Microsoft.ChakraCore involving ChakraCore information disclosure vulnerability under CWE-200: Exposure of Sensitive Information to an Unauthorized Actor.
Which Microsoft.ChakraCore versions are affected?
Affected versions include releases prior to 1.8.4 across affected packages: Microsoft.ChakraCore.
What version fixes CVE-2018-8145?
Upgrading to 1.8.4 (or the latest patched release for your respective branch) resolves the vulnerability.
Is Microsoft.ChakraCore affected?
Yes, Microsoft.ChakraCore is affected in releases prior to 1.8.4. Upgrade your dependency to 1.8.4 or later.
What is the CVSS score of CVE-2018-8145?
CVE-2018-8145 has a CVSS v3.1 base score of 7.5 (HIGH) with vector string CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H.
What CWE is associated with CVE-2018-8145?
CVE-2018-8145 is classified under CWE-200: Exposure of Sensitive Information to an Unauthorized Actor (The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.).
How can I check NuGet dependencies for CVE-2018-8145?
Run the dependency tree command: 'inspect dependencies for Microsoft.ChakraCore'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-xphq-3x6q-q2qq",
  "modified" : "2023-10-06T15:22:03Z",
  "published" : "2022-05-13T01:53:32Z",
  "aliases" : [ "CVE-2018-8145" ],
  "summary" : "ChakraCore information disclosure vulnerability",
  "details" : "An information disclosure vulnerability exists when Chakra improperly discloses the contents of its memory, which could provide an attacker with information to further compromise the user's computer or data, aka \"Chakra Scripting Engine Memory Corruption Vulnerability.\" This affects ChakraCore, Internet Explorer 11, Microsoft Edge, Internet Explorer 10. This CVE ID is unique from CVE-2018-0943, CVE-2018-8130, CVE-2018-8133, CVE-2018-8177.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "NuGet",
      "name" : "Microsoft.ChakraCore"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "1.8.4"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2018-8145"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/chakra-core/ChakraCore"
  }, {
    "type" : "WEB",
    "url" : "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8145"
  }, {
    "type" : "WEB",
    "url" : "https://web.archive.org/web/20210124164314/http://www.securityfocus.com/bid/103986"
  }, {
    "type" : "WEB",
    "url" : "https://web.archive.org/web/20211204185256/http://www.securitytracker.com/id/1040844"
  }, {
    "type" : "WEB",
    "url" : "https://www.exploit-db.com/exploits/45011"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-200" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2023-07-24T20:24:31Z",
    "nvd_published_at" : "2018-05-09T19:29:00Z"
  }
}