Vulnerability Name:

CVE-2017-11770 (CCN-134234)

Assigned:2017-11-14
Published:2017-11-14
Updated:2019-04-16
Summary:.NET Core 1.0, 1.1, and 2.0 allow an unauthenticated attacker to remotely cause a denial of service attack against a .NET Core web application by improperly parsing certificate data. A denial of service vulnerability exists when .NET Core improperly handles parsing certificate data, aka ".NET CORE Denial Of Service Vulnerability".
CVSS v3 Severity:7.5 High (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
6.5 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/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): None
Integrity (I): None
Availibility (A): High
7.5 High (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
6.5 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/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): None
Integrity (I): None
Availibility (A): High
CVSS v2 Severity:5.0 Medium (CVSS v2 Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Partial
7.8 High (CCN CVSS v2 Vector: AV:N/AC:L/Au:N/C:N/I:N/A:C)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Complete
Vulnerability Type:CWE-295
Vulnerability Consequences:Denial of Service
References:Source: MITRE
Type: CNA
CVE-2017-11770

Source: BID
Type: Third Party Advisory, VDB Entry
101710

Source: CCN
Type: BID-101710
Microsoft ASP.NET Core CVE-2017-11770 Denial of Service Vulnerability

Source: SECTRACK
Type: Third Party Advisory, VDB Entry
1039787

Source: REDHAT
Type: Third Party Advisory
RHSA-2017:3248

Source: XF
Type: UNKNOWN
ms-dotnet-cve201711770-dos(134234)

Source: CCN
Type: Microsoft Security TechCenter - November 2017
.NET CORE Denial Of Service Vulnerability

Source: CONFIRM
Type: Patch, Vendor Advisory
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-11770

Vulnerable Configuration:Configuration 1:
  • cpe:/a:microsoft:aspnetcore:1.0:*:*:*:*:*:*:*
  • OR cpe:/a:microsoft:aspnetcore:1.1:*:*:*:*:*:*:*
  • OR cpe:/a:microsoft:aspnetcore:2.0:*:*:*:*:*:*:*

    • Configuration CCN 1:
  • cpe:/a:microsoft:.net_core:1.0:-:*:*:*:*:*:*
  • OR cpe:/a:microsoft:.net_core:1.1:-:*:*:*:*:*:*
  • OR cpe:/a:microsoft:.net_core:2.0:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    BACK
    microsoft aspnetcore 1.0
    microsoft aspnetcore 1.1
    microsoft aspnetcore 2.0
    microsoft .net core 1.0
    microsoft .net core 1.1
    microsoft .net core 2.0