HIGH
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"
Published Nov 15, 2017
8.8
HIGHCVSS 3.0
EPSS 9.40%
Description
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".
Affected products
-
- Version ASP.NET Core 2.0StatusaffectedConstraints-
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Microsoft Corporation | ASP.NET Core | n/a |
|
- 2.0
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
8.8 HIGH NVD
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction Required
Scope Unchanged
Confidentiality Impact High
Integrity Impact High
Availability Impact High
4.3 MEDIUM NVD
AV:N/AC:M/Au:N/C:P/I:N/A:N
Access Vector Network
Access Complexity Medium
Authentication None
Confidentiality Impact Partial
Integrity Impact None
Availability Impact None
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
9.40% 0.09398
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
EPSS probability 0.09398
Score over time
2021–2026- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
- EPSS v4
Percentile over time
- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
- EPSS v4
Table of values (25 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 9.40% (0.09398) | 95.26th | v5 (v2026.06.15) |
| Sep 22, 2026 | 9.40% (0.09398) | 95.18th | v5 (v2026.06.15) |
| Sep 21, 2026 | 7.00% (0.07001) | 93.95th | v5 (v2026.06.15) |
| Sep 6, 2026 | 9.40% (0.09398) | 95.07th | v5 (v2026.06.15) |
| Sep 5, 2026 | 7.00% (0.07001) | 93.81th | v5 (v2026.06.15) |
| Aug 30, 2026 | 9.40% (0.09398) | 95.05th | v5 (v2026.06.15) |
| Aug 28, 2026 | 7.00% (0.07001) | 93.77th | v5 (v2026.06.15) |
| Aug 24, 2026 | 9.40% (0.09398) | 95.02th | v5 (v2026.06.15) |
| Aug 23, 2026 | 7.00% (0.07001) | 93.75th | v5 (v2026.06.15) |
| Jun 15, 2026 | 9.40% (0.09398) | 94.76th | v5 (v2026.06.15) |
| Dec 17, 2025 | 10.01% (0.10013) | 92.81th | v4 (v2025.03.14) |
| Aug 7, 2025 | 7.57% (0.07569) | 91.43th | v4 (v2025.03.14) |
| Jun 1, 2025 | 5.72% (0.05720) | 90.00th | v4 (v2025.03.14) |
| Apr 5, 2025 | 6.93% (0.06929) | 90.57th | v4 (v2025.03.14) |
| Mar 30, 2025 | 8.97% (0.08968) | 91.81th | v4 (v2025.03.14) |
| Mar 29, 2025 | 6.50% (0.06500) | 84.75th | v4 (v2025.03.14) |
| Mar 17, 2025 | 8.97% (0.08968) | 91.98th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.51% (0.00514) | 77.45th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.51% (0.00514) | 75.98th | v3 (v2023.03.01) |
| Sep 3, 2023 | 0.51% (0.00514) | 73.73th | v3 (v2023.03.01) |
| Mar 7, 2023 | 1.16% (0.01162) | 82.69th | v3 (v2023.03.01) |
| Mar 6, 2023 | 10.46% (0.10457) | 94.63th | v2 (v2022.01.01) |
| Feb 4, 2022 | 9.57% (0.09575) | 87.16th | v2 (v2022.01.01) |
| Feb 3, 2022 | 8.76% (0.08756) | 86.41th | v5 (v2026.06.15) |
| Apr 14, 2021 | 8.76% (0.08756) | 0.00th | v1 |
Weaknesses (1)
References (7)
- http://www.securityfocus.com/bid/101713 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- http://www.securitytracker.com/id/1039793 vdb-entryx_refsource_SECTRACKIssue TrackingThird Party AdvisoryVDB Entry
- https://github.com/advisories/GHSA-3wcj-rg8q-9cqv Advisory
- https://github.com/aspnet/Announcements/issues/277
- https://github.com/github/advisory-database/issues/302
- https://nvd.nist.gov/vuln/detail/CVE-2017-11879
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-11879 x_refsource_CONFIRMIssue TrackingPatchVendor Advisory
| Link | Providers | Tags |
|---|---|---|
| http://www.securityfocus.com/bid/101713 | vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry | |
| http://www.securitytracker.com/id/1039793 | vdb-entryx_refsource_SECTRACKIssue TrackingThird Party AdvisoryVDB Entry | |
| https://github.com/advisories/GHSA-3wcj-rg8q-9cqv | Advisory | |
| https://github.com/aspnet/Announcements/issues/277 | ||
| https://github.com/github/advisory-database/issues/302 | ||
| https://nvd.nist.gov/vuln/detail/CVE-2017-11879 | ||
| https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-11879 | x_refsource_CONFIRMIssue TrackingPatchVendor Advisory |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner microsoft
Published Nov 15, 2017
Updated Sep 16, 2024
Reserved Jul 31, 2017
Link CVE-2017-11879
CISA Vulnrichment
GHSA-3WCJ-RG8Q-9CQV Updated n/a