Vulnerability Name:

CVE-2018-0840 (CCN-138533)

Assigned:2017-12-01
Published:2018-02-13
Updated:2020-08-24
Summary:Internet Explorer in Microsoft Windows 7 SP1, Windows Server 2008 R2 SP1, Windows 8.1 and Windows RT 8.1, Windows Server 2012 and R2, and Internet Explorer and Microsoft Edge in Windows 10 Gold, 1511, 1607, 1703, 1709, and Windows Server 2016 allows remote code execution, due to how the scripting engine handles objects in memory, aka "Scripting Engine Memory Corruption Vulnerability". This CVE ID is unique from CVE-2018-0834, CVE-2018-0835, CVE-2018-0836, CVE-2018-0837, CVE-2018-0838, CVE-2018-0856, CVE-2018-0857, CVE-2018-0858, CVE-2018-0859, CVE-2018-0860, CVE-2018-0861, and CVE-2018-0866.
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)
6.7 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:P/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
7.5 High (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H)
6.7 Medium (CCN 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:P/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
CVSS v2 Severity:9.3 High (CVSS v2 Vector: AV:N/AC:M/Au:N/C:C/I:C/A:C)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Medium
Authentication (Au): None
Impact Metrics:Confidentiality (C): Complete
Integrity (I): Complete
Availibility (A): Complete
7.1 High (CCN CVSS v2 Vector: AV:N/AC:H/Au:S/C:C/I:C/A:C)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): High
Athentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): Complete
Integrity (I): Complete
Availibility (A): Complete
Vulnerability Type:CWE-787
Vulnerability Consequences:Gain Access
References:Source: MITRE
Type: CNA
CVE-2018-0840

Source: BID
Type: Third Party Advisory, VDB Entry
102886

Source: CCN
Type: BID-102886
Microsoft Internet Explorer and Edge CVE-2018-0840 Remote Memory Corruption Vulnerability

Source: SECTRACK
Type: Third Party Advisory, VDB Entry
1040369

Source: SECTRACK
Type: Third Party Advisory, VDB Entry
1040372

Source: XF
Type: UNKNOWN
ms-browsers-cve20180840-code-exec(138533)

Source: CCN
Type: Microsoft Security TechCenter - February 2018
Scripting Engine Memory Corruption Vulnerability

Source: CONFIRM
Type: Patch, Vendor Advisory
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-0840

Source: EXPLOIT-DB
Type: EXPLOIT
Offensive Security Exploit Database [02-15-2018]

Source: EXPLOIT-DB
Type: Exploit, Third Party Advisory, VDB Entry
44077

Source: CCN
Type: WhiteSource Vulnerability Database
CVE-2018-0840

Vulnerable Configuration:Configuration 1:
  • cpe:/a:microsoft:internet_explorer:11:-:*:*:*:*:*:*
  • AND
  • cpe:/o:microsoft:windows_7:-:sp1:*:*:*:*:*:*
  • OR cpe:/o:microsoft:windows_8.1:*:*:*:*:*:*:*:*
  • OR cpe:/o:microsoft:windows_rt_8.1:-:*:*:*:*:*:*:*
  • OR cpe:/o:microsoft:windows_server_2008:r2:sp1:*:*:*:*:*:*
  • OR cpe:/o:microsoft:windows_server_2012:r2:*:*:*:*:*:*:*

    • Configuration 2:
  • cpe:/a:microsoft:edge:-:*:*:*:*:*:*:*
  • OR cpe:/a:microsoft:internet_explorer:11:-:*:*:*:*:*:*
  • AND
  • cpe:/o:microsoft:windows_10:-:*:*:*:*:*:*:*
  • OR cpe:/o:microsoft:windows_10:1511:*:*:*:*:*:*:*
  • OR cpe:/o:microsoft:windows_10:1607:*:*:*:*:*:*:*
  • OR cpe:/o:microsoft:windows_10:1703:*:*:*:*:*:*:*
  • OR cpe:/o:microsoft:windows_10:1709:*:*:*:*:*:*:*
  • OR cpe:/o:microsoft:windows_server_2016:-:*:*:*:*:*:*:*

    • Configuration 3:
  • cpe:/a:microsoft:internet_explorer:10:-:*:*:*:*:*:*
  • AND
  • cpe:/o:microsoft:windows_server_2012:-:*:*:*:*:*:*:*

    • Configuration CCN 1:
  • cpe:/a:microsoft:internet_explorer:10:-:*:*:*:*:*:*
  • OR cpe:/a:microsoft:internet_explorer:11:-:*:*:*:*:*:*
  • OR cpe:/a:microsoft:edge:-:*:*:*:*:*:*:*
  • OR cpe:/a:microsoft:chakracore:-:*:*:*:*:*:*:*
  • AND
  • cpe:/o:microsoft:windows_7:-:sp1:*:*:ultimate_n:*:x86:*
  • OR cpe:/o:microsoft:windows_7::sp1:x64:*:*:*:*:*
  • OR cpe:/o:microsoft:windows_server_2008:r2:sp1:*:*:*:*:x64:*
  • OR cpe:/o:microsoft:windows_server_2012:*:*:*:*:*:*:*:*
  • OR cpe:/o:microsoft:windows_8.1:-:-:-:*:-:-:x32:*
  • OR cpe:/o:microsoft:windows_8.1:::~~~~x64~:*:*:*:*:*
  • OR cpe:/o:microsoft:windows_server_2012:r2:*:*:*:*:*:*:*
  • OR cpe:/o:microsoft:windows_rt_8.1:-:*:*:*:*:*:*:*
  • OR cpe:/o:microsoft:windows_10:-:*:*:*:*:*:x32:*
  • OR cpe:/o:microsoft:windows_10:::~~~~x64~:*:*:*:*:*
  • OR cpe:/o:microsoft:windows_server_2016:*:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    BACK
    microsoft internet explorer 11 -
    microsoft windows 7 - sp1
    microsoft windows 8.1 *
    microsoft windows rt 8.1 -
    microsoft windows server 2008 r2 sp1
    microsoft windows server 2012 r2
    microsoft edge -
    microsoft internet explorer 11 -
    microsoft windows 10 -
    microsoft windows 10 1511
    microsoft windows 10 1607
    microsoft windows 10 1703
    microsoft windows 10 1709
    microsoft windows server 2016 -
    microsoft internet explorer 10 -
    microsoft windows server 2012 -
    microsoft internet explorer 10 -
    microsoft internet explorer 11 -
    microsoft edge -
    microsoft chakracore -
    microsoft windows 7 - sp1
    microsoft windows 7 sp1
    microsoft windows server 2008 r2
    microsoft windows server 2012
    microsoft windows 8.1 - -
    microsoft windows 8.1
    microsoft windows server 2012 r2
    microsoft windows rt 8.1 -
    microsoft windows 10 -
    microsoft windows 10
    microsoft windows server 2016