Vulnerability Name:

CVE-2020-17131 (CCN-192270)

Assigned:2020-12-08
Published:2020-12-08
Updated:2021-03-04
Summary:Chakra Scripting Engine Memory Corruption Vulnerability
CVSS v3 Severity:7.5 High (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H)
6.5 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): High
Privileges Required (PR): None
User Interaction (UI): Required
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): High
Integrity (I): High
Availibility (A): High
4.2 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N)
3.7 Low (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): High
Privileges Required (PR): None
User Interaction (UI): Required
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): Low
Integrity (I): Low
Availibility (A): None
CVSS v2 Severity:5.1 Medium (CVSS v2 Vector: AV:N/AC:H/Au:N/C:P/I:P/A:P)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): High
Authentication (Au): None
Impact Metrics:Confidentiality (C): Partial
Integrity (I): Partial
Availibility (A): Partial
3.6 Low (CCN CVSS v2 Vector: AV:N/AC:H/Au:S/C:P/I:P/A:N)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): High
Athentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): Partial
Integrity (I): Partial
Availibility (A): None
Vulnerability Type:CWE-787
Vulnerability Consequences:Gain Access
References:Source: MITRE
Type: CNA
CVE-2020-17131

Source: XF
Type: UNKNOWN
ms-edge-cve202017131-code-exec(192270)

Source: CCN
Type: Microsoft Security TechCenter - December 2020
Chakra Scripting Engine Memory Corruption Vulnerability

Source: MISC
Type: Patch, Vendor Advisory
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-17131

Source: CCN
Type: ZDI-20-1413
Microsoft Chakra LinearScan Memory Corruption Remote Code Execution Vulnerability

Vulnerable Configuration:Configuration 1:
  • cpe:/a:microsoft:edge:-:*:*:*:*:*:*:*
  • AND
  • cpe:/o:microsoft:windows_10_20h2:-:*:*:*:*:*:arm64:*
  • OR cpe:/o:microsoft:windows_10_20h2:-:*:*:*:*:*:x64:*
  • OR cpe:/o:microsoft:windows_10_20h2:-:*:*:*:*:*:x86:*
  • OR cpe:/o:microsoft:windows_10_1809:-:*:*:*:*:*:arm64:*
  • OR cpe:/o:microsoft:windows_10_1809:-:*:*:*:*:*:x64:*
  • OR cpe:/o:microsoft:windows_10_1809:-:*:*:*:*:*:x86:*
  • OR cpe:/o:microsoft:windows_10_1903:-:*:*:*:*:*:arm64:*
  • OR cpe:/o:microsoft:windows_10_1903:-:*:*:*:*:*:x64:*
  • OR cpe:/o:microsoft:windows_10_1903:-:*:*:*:*:*:x86:*
  • OR cpe:/o:microsoft:windows_10_1909:-:*:*:*:*:*:arm64:*
  • OR cpe:/o:microsoft:windows_10_1909:-:*:*:*:*:*:x64:*
  • OR cpe:/o:microsoft:windows_10_1909:-:*:*:*:*:*:x86:*
  • OR cpe:/o:microsoft:windows_server_2019:-:*:*:*:*:*:*:*
  • OR cpe:/o:microsoft:windows_10_2004:-:*:*:*:*:*:x64:*
  • OR cpe:/o:microsoft:windows_10_2004:-:*:*:*:*:*:x86:*
  • OR cpe:/o:microsoft:windows_10_2004:-:*:*:*:*:*:arm64:*

  • Configuration 2:
  • cpe:/a:microsoft:chakracore:*:*:*:*:*:*:*:* (Version < 1.11.0)

  • Configuration CCN 1:
  • cpe:/a:microsoft:edge:-:*:*:*:*:*:*:*
  • OR cpe:/a:microsoft:chakracore:-:*:*:*:*:*:*:*
  • AND
  • cpe:/o:microsoft:windows_10:-:*:*:*:*:*:x32:*
  • OR cpe:/o:microsoft:windows_10:::~~~~x64~:*:*:*:*:*
  • OR cpe:/o:microsoft:windows_server_2019:*:*:*:*:*:*:*:*
  • OR cpe:/o:microsoft:windows_10:-:*:*:*:*:*:arm64:*

  • * Denotes that component is vulnerable
    BACK
    microsoft edge -
    microsoft windows 10 20h2
    microsoft windows 10 20h2
    microsoft windows 10 20h2
    microsoft windows 10 1809
    microsoft windows 10 1809
    microsoft windows 10 1809
    microsoft windows 10 1903
    microsoft windows 10 1903
    microsoft windows 10 1903
    microsoft windows 10 1909
    microsoft windows 10 1909
    microsoft windows 10 1909
    microsoft windows server 2019 -
    microsoft windows 10 2004
    microsoft windows 10 2004
    microsoft windows 10 2004
    microsoft chakracore *
    microsoft edge -
    microsoft chakracore -
    microsoft windows 10 -
    microsoft windows 10
    microsoft windows server 2019
    microsoft windows 10 -