CVE-2017-11796: Microsoft.ChakraCore Remote Code Execution Vulnerability

HIGH
Advisory Identifier: GHSA-3c78-m682-8wp9
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CVSS 7.5
CWE-119
Published
Advisory Summary

CVE-2017-11796 is a HIGH (CVSS 7.5) remote code execution vulnerability (CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer) affecting Microsoft.ChakraCore libraries in the NuGet ecosystem. The issue involves chakracore rce vulnerability. Remediation is available by upgrading affected packages to version 1.7.3.

CVE-2017-11796 at a Glance

CVE Identifier CVE-2017-11796
GHSA Identifier GHSA-3c78-m682-8wp9
Severity HIGH
CVSS v3.1 Base Score 7.5
CWE Classification CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer
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-2017-11796

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: 1.7.3 
Upgrade Microsoft.ChakraCore to 1.7.3
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-2017-11796, 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 1.7.3), 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-119: Improper Restriction of Operations within the Bounds of a Memory Buffer, where the product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. this may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data. 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

ChakraCore and Microsoft Edge in Windows 10 1703 allows an attacker to execute arbitrary code in the context of the current user, due to how the scripting engine handles objects in memory, aka "Scripting Engine Memory Corruption Vulnerability". This CVE ID is unique from CVE-2017-11792, CVE-2017-11793, CVE-2017-11797, CVE-2017-11798, CVE-2017-11799, CVE-2017-11800, CVE-2017-11801, CVE-2017-11802, CVE-2017-11804, CVE-2017-11805, CVE-2017-11806, CVE-2017-11807, CVE-2017-11808, CVE-2017-11809, CVE-2017-11810, CVE-2017-11811, CVE-2017-11812, and CVE-2017-11821.

CVE-2017-11796 Affected Microsoft.ChakraCore Versions

1 component(s)
Fixed Versions:
1.7.3
Product / Package Ecosystem Affected Versions Fixed Version
Microsoft.ChakraCore
nuget/Microsoft.ChakraCore
NuGet
< 1.7.3
1.7.3

References

NVD — CVE-2017-11796 NVD
https://nvd.nist.gov/vuln/detail/CVE-2017-11796
Microsoft.ChakraCore Source Repository REPOSITORY
https://github.com/chakra-core/ChakraCore/pull/3917
Security Fix Commit FIX COMMIT
https://github.com/chakra-core/ChakraCore/commit/6eba63d1851b4ece1e334ea1e07b3af44ef1e480
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-2017-11796
Microsoft.ChakraCore Security Information SECURITY
https://web.archive.org/web/20210124105229/http://www.securityfocus.com/bid/101080
Microsoft.ChakraCore Security Information SECURITY
https://web.archive.org/web/20210723180751/http://www.securitytracker.com/id/1039529

Frequently Asked Questions

What is CVE-2017-11796?
CVE-2017-11796 is a security vulnerability in Microsoft.ChakraCore involving ChakraCore RCE Vulnerability under CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer.
Which Microsoft.ChakraCore versions are affected?
Affected versions include releases prior to 1.7.3 across affected packages: Microsoft.ChakraCore.
What version fixes CVE-2017-11796?
Upgrading to 1.7.3 (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 1.7.3. Upgrade your dependency to 1.7.3 or later.
What is the CVSS score of CVE-2017-11796?
CVE-2017-11796 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-2017-11796?
CVE-2017-11796 is classified under CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer (The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.).
How can I check NuGet dependencies for CVE-2017-11796?
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-3c78-m682-8wp9",
  "modified" : "2023-10-24T12:46:21Z",
  "published" : "2022-05-17T00:32:03Z",
  "aliases" : [ "CVE-2017-11796" ],
  "summary" : "ChakraCore RCE Vulnerability",
  "details" : "ChakraCore and Microsoft Edge in Windows 10 1703 allows an attacker to execute arbitrary code in the context of the current user, due to how the scripting engine handles objects in memory, aka \"Scripting Engine Memory Corruption Vulnerability\". This CVE ID is unique from CVE-2017-11792, CVE-2017-11793, CVE-2017-11797, CVE-2017-11798, CVE-2017-11799, CVE-2017-11800, CVE-2017-11801, CVE-2017-11802, CVE-2017-11804, CVE-2017-11805, CVE-2017-11806, CVE-2017-11807, CVE-2017-11808, CVE-2017-11809, CVE-2017-11810, CVE-2017-11811, CVE-2017-11812, and CVE-2017-11821.",
  "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" : "1.7.3"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2017-11796"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/chakra-core/ChakraCore/pull/3917"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/chakra-core/ChakraCore/commit/6eba63d1851b4ece1e334ea1e07b3af44ef1e480"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/chakra-core/ChakraCore"
  }, {
    "type" : "WEB",
    "url" : "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-11796"
  }, {
    "type" : "WEB",
    "url" : "https://web.archive.org/web/20210124105229/http://www.securityfocus.com/bid/101080"
  }, {
    "type" : "WEB",
    "url" : "https://web.archive.org/web/20210723180751/http://www.securitytracker.com/id/1039529"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-119" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2023-07-26T23:34:18Z",
    "nvd_published_at" : "2017-10-13T13:29:00Z"
  }
}