CVE-2017-11879
Open redirect in ASP.NET Core
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".
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- Required
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
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".
- Record
CVE-2017-11879- CVSS 3.0
- 8.8 High
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - CVSS 2.0
- 4.3 Medium
AV:N/AC:M/Au:N/C:P/I:N/A:N - Weakness
- CWE-601
- Updated
- 2026-11-02
CVE List No score
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".
- Record
CVE-2017-11879- Updated
- 2026-11-02
EUVDEUVD-2022-2253 No score
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".
- Record
EUVD-2022-2253- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-3wcj-rg8q-9cqv
Open redirect in ASP.NET Core
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".
- Record
GHSA-3wcj-rg8q-9cqv- CVSS 3.0
- 8.8 High
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - Weakness
- CWE-601
- Updated
- 2026-11-02
OSV
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".
- Record
CVE-2017-11879- CVSS 3.0
- 8.8 High
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
OSVGHSA-3wcj-rg8q-9cqv
Open redirect in ASP.NET Core
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".
- Record
GHSA-3wcj-rg8q-9cqv- CVSS 3.0
- 8.8 High
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - Weakness
- CWE-601
- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
Microsoft.AspNetCore.AllNuGet |
2.0.0 up to 2.0.3 | 2.0.3 |
Microsoft.AspNetCore.Mvc.CoreNuGet |
2.0.0 to 2.0.0 | 2.0.1 |
Microsoft.AspNetCore.Mvc.CoreNuGet |
2.0.0 up to 2.0.1 | 2.0.1 |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases, products | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2017-11879 is a high vulnerability (CVSS 8.8) in Microsoft Asp.net Core, published November 15, 2017. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 9.40%, the 95th percentile. Fixed in Microsoft.AspNetCore.All 2.0.3.