Vulnerability Name:

CVE-2019-0686 (CCN-156470)

Assigned:2018-11-26
Published:2019-02-12
Updated:2020-08-24
Summary:An elevation of privilege vulnerability exists in Microsoft Exchange Server, aka 'Microsoft Exchange Server Elevation of Privilege Vulnerability'. This CVE ID is unique from CVE-2019-0724.
CVSS v3 Severity:7.4 High (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N)
6.7 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N/E:P/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): High
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): High
Integrity (I): High
Availibility (A): None
9.8 Critical (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)
8.8 High (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): High
Integrity (I): High
Availibility (A): High
CVSS v2 Severity:5.8 Medium (CVSS v2 Vector: AV:N/AC:M/Au:N/C:P/I:P/A:N)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Medium
Authentication (Au): None
Impact Metrics:Confidentiality (C): Partial
Integrity (I): Partial
Availibility (A): None
10.0 High (CCN CVSS v2 Vector: AV:N/AC:L/Au:N/C:C/I:C/A:C)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): None
Impact Metrics:Confidentiality (C): Complete
Integrity (I): Complete
Availibility (A): Complete
Vulnerability Type:CWE-noinfo
Vulnerability Consequences:Gain Privileges
References:Source: MITRE
Type: CNA
CVE-2019-0686

Source: BID
Type: Third Party Advisory, VDB Entry
106937

Source: CCN
Type: dirkjanm Blog
Abusing Exchange: One API call away from Domain Admin

Source: XF
Type: UNKNOWN
ms-exchange-cve20190686-priv-esc(156470)

Source: CCN
Type: Microsoft Security TechCenter - February 2019
ADV190007 | Guidance for "PrivExchange" Elevation of Privilege Vulnerability

Source: CCN
Type: Microsoft Security TechCenter - February 2019
Microsoft Exchange Server Elevation of Privilege Vulnerability

Source: CONFIRM
Type: Patch, Vendor Advisory
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-0686

Vulnerable Configuration:Configuration 1:
  • cpe:/a:microsoft:exchange_server:2010:sp3_rollup26:*:*:*:*:*:*
  • OR cpe:/a:microsoft:exchange_server:2013:cumulative_update_22:*:*:*:*:*:*
  • OR cpe:/a:microsoft:exchange_server:2016:cumulative_update_12:*:*:*:*:*:*
  • OR cpe:/a:microsoft:exchange_server:2019:cumulative_update_1:*:*:*:*:*:*

  • Configuration CCN 1:
  • cpe:/a:microsoft:exchange_server:2013:cumulative_update_22:*:*:*:*:*:*
  • OR cpe:/a:microsoft:exchange_server:2016:cumulative_update_12:*:*:*:*:*:*
  • OR cpe:/a:microsoft:exchange_server:2019:cumulative_update_1:*:*:*:*:*:*

  • * Denotes that component is vulnerable
    BACK
    microsoft exchange server 2010 sp3_rollup26
    microsoft exchange server 2013 cumulative_update_22
    microsoft exchange server 2016 cumulative_update_12
    microsoft exchange server 2019 cumulative_update_1
    microsoft exchange server 2013 cumulative_update_22
    microsoft exchange server 2016 cumulative_update_12
    microsoft exchange server 2019 cumulative_update_1