CVE-2020-1045
Microsoft ASP.NET Core Cookie Encoding Bypass Vulnerability
Description
<p>A security feature bypass vulnerability exists in the way Microsoft ASP.NET Core parses encoded cookie names.</p> <p>The ASP.NET Core cookie parser decodes entire cookie strings which could allow a malicious attacker to set a second cookie with the name being percent encoded.</p> <p>The security update addresses the vulnerability by fixing the way the ASP.NET Core cookie parser handles encoded names.</p>
INFO
Published Date :
Sept. 11, 2020, 5:15 p.m.
Last Modified :
Dec. 31, 2023, 10:15 p.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
3.6
Exploitability Score :
3.9
Public PoC/Exploit Available at Github
CVE-2020-1045 has a 1 public PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
Affected Products
The following products are affected by CVE-2020-1045
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2020-1045.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
CVE Data Analysis, CVE Monitor, CVE EXP Prediction Based on Deep Learning. 1999-2020年存量CVE数据分析、监控CVE增量更新、基于深度学习的CVE EXP预测和自动化推送
Python
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2020-1045 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2020-1045 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
CVE Modified by [email protected]
Dec. 31, 2023
Action Type Old Value New Value Changed Description A security feature bypass vulnerability exists in the way Microsoft ASP.NET Core parses encoded cookie names.The ASP.NET Core cookie parser decodes entire cookie strings which could allow a malicious attacker to set a second cookie with the name being percent encoded.The security update addresses the vulnerability by fixing the way the ASP.NET Core cookie parser handles encoded names., aka 'Microsoft ASP.NET Core Security Feature Bypass Vulnerability'. <p>A security feature bypass vulnerability exists in the way Microsoft ASP.NET Core parses encoded cookie names.</p> <p>The ASP.NET Core cookie parser decodes entire cookie strings which could allow a malicious attacker to set a second cookie with the name being percent encoded.</p> <p>The security update addresses the vulnerability by fixing the way the ASP.NET Core cookie parser handles encoded names.</p> Added CVSS V3.1 Microsoft Corporation AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N -
CVE Modified by [email protected]
Nov. 07, 2023
Action Type Old Value New Value Added Reference Microsoft Corporation https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5LN2FUVBSVPGK7AU3NMLO3YR6CGONQPB/ [No types assigned] Added Reference Microsoft Corporation https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ASICXQXS4M7MTAF6SGQMCLCA63DLCUT3/ [No types assigned] Removed Reference Microsoft Corporation https://lists.fedoraproject.org/archives/list/[email protected]/message/5LN2FUVBSVPGK7AU3NMLO3YR6CGONQPB/ Removed Reference Microsoft Corporation https://lists.fedoraproject.org/archives/list/[email protected]/message/ASICXQXS4M7MTAF6SGQMCLCA63DLCUT3/ -
Modified Analysis by [email protected]
Dec. 12, 2022
Action Type Old Value New Value Changed Reference Type https://access.redhat.com/errata/RHSA-2020:3699 No Types Assigned https://access.redhat.com/errata/RHSA-2020:3699 Third Party Advisory Changed Reference Type https://github.com/dotnet/core/blob/main/release-notes/3.1/3.1.8/3.1.8.md#changes-in-318 No Types Assigned https://github.com/dotnet/core/blob/main/release-notes/3.1/3.1.8/3.1.8.md#changes-in-318 Release Notes, Third Party Advisory Changed Reference Type https://security.snyk.io/vuln/SNYK-RHEL8-DOTNET-1439600 No Types Assigned https://security.snyk.io/vuln/SNYK-RHEL8-DOTNET-1439600 Third Party Advisory Added CPE Configuration OR *cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux_aus:8.2:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux_aus:8.4:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux_aus:8.6:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux_eus:8.2:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux_eus:8.4:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux_eus:8.6:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux_tus:8.2:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux_tus:8.4:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux_tus:8.6:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Nov. 23, 2022
Action Type Old Value New Value Added Reference https://access.redhat.com/errata/RHSA-2020:3699 [No Types Assigned] Added Reference https://security.snyk.io/vuln/SNYK-RHEL8-DOTNET-1439600 [No Types Assigned] Added Reference https://github.com/dotnet/core/blob/main/release-notes/3.1/3.1.8/3.1.8.md#changes-in-318 [No Types Assigned] -
Reanalysis by [email protected]
Nov. 21, 2022
Action Type Old Value New Value Changed CPE Configuration OR *cpe:2.3:a:microsoft:asp.net_core:2.1:*:*:*:*:*:*:* *cpe:2.3:a:microsoft:asp.net_core:3.1:*:*:*:*:*:*:* OR *cpe:2.3:a:microsoft:asp.net_core:*:*:*:*:*:*:*:* versions from (including) 2.1 up to (including) 2.1.21 *cpe:2.3:a:microsoft:asp.net_core:*:*:*:*:*:*:*:* versions from (including) 3.1 up to (excluding) 3.1.8 -
Modified Analysis by [email protected]
Sep. 02, 2022
Action Type Old Value New Value Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/5LN2FUVBSVPGK7AU3NMLO3YR6CGONQPB/ No Types Assigned https://lists.fedoraproject.org/archives/list/[email protected]/message/5LN2FUVBSVPGK7AU3NMLO3YR6CGONQPB/ Mailing List, Third Party Advisory Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/ASICXQXS4M7MTAF6SGQMCLCA63DLCUT3/ No Types Assigned https://lists.fedoraproject.org/archives/list/[email protected]/message/ASICXQXS4M7MTAF6SGQMCLCA63DLCUT3/ Mailing List, Third Party Advisory Added CPE Configuration OR *cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:* *cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Oct. 02, 2020
Action Type Old Value New Value Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/ASICXQXS4M7MTAF6SGQMCLCA63DLCUT3/ [No Types Assigned] -
CVE Modified by [email protected]
Sep. 16, 2020
Action Type Old Value New Value Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/5LN2FUVBSVPGK7AU3NMLO3YR6CGONQPB/ [No Types Assigned] -
Initial Analysis by [email protected]
Sep. 16, 2020
Action Type Old Value New Value Added CVSS V2 NIST (AV:N/AC:L/Au:N/C:N/I:P/A:N) Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N Changed Reference Type https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1045 No Types Assigned https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1045 Patch, Vendor Advisory Added CWE NIST NVD-CWE-noinfo Added CPE Configuration OR *cpe:2.3:a:microsoft:asp.net_core:2.1:*:*:*:*:*:*:* *cpe:2.3:a:microsoft:asp.net_core:3.1:*:*:*:*:*:*:*
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2020-1045 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2020-1045
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.37 }} 0.05%
score
0.73009
percentile