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CVE

CVE-2017-11879

ASP.NET Core 2.0 allows an attacker to steal log-in session information such as cookies or authentication tokens via a s

ASP.NET Core 2.0 allows an attacker to steal log-in session information such as cookies or authentication tokens via a specially crafted URL aka "ASP.NET Core Elevation Of Privilege Vulnerability".

HIGH · CVSS 8.8 EPSS 0.09772
Schedule remediation
  • EPSS percentile: top 7% of all CVEs by exploitation likelihood
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
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Weakness Classification

CWE-601URL Redirection to Untrusted Site ('Open Redirect')
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Affected Products & Versions

1
microsoft asp.net coreall versions
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Affected Packages

2
Language-ecosystem packages (from OSV) tied to this CVE, with the version that fixes it - the dependency-level detail NVD doesn’t carry.
NuGet Microsoft.AspNetCore.All HIGH fixed in 2.0.3
NuGet Microsoft.AspNetCore.Mvc.Core HIGH fixed in 2.0.1
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Scoring & Timeline

8.8
HIGH · CVSS v3.0 · secure@microsoft.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD15 Nov 2017 · 03:29 AM
CVSS VectorCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
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Vendor Advisories

1
msrcCVE-2017-11879Elevation of Privilege
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References & Sources

3
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
http://www.securityfocus.com/bid/101713Third Party AdvisoryVDB Entry
http://www.securitytracker.com/id/1039793Issue TrackingThird Party AdvisoryVDB Entry
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-11879Issue TrackingPatchVendor Advisory
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