CVE-2017-11770
.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.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (5.42%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
.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 3.0
- 7.5 HIGHCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 5.42% probability · 92th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-295
- Affected
- microsoft/aspnetcore
- Source
- secure@microsoft.com
References
- http://www.securityfocus.com/bid/101710Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1039787Third Party Advisory, VDB Entry
- https://access.redhat.com/errata/RHSA-2017:3248Third Party Advisory
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-11770Patch, Vendor Advisory
- http://www.securityfocus.com/bid/101710Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1039787Third Party Advisory, VDB Entry
- https://access.redhat.com/errata/RHSA-2017:3248Third Party Advisory
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-11770Patch, Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.