Microsoft ASP.NET Core/.NET Core Web Request input validation

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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7.3$25k-$100k0.00

Summaryinfo

A vulnerability, which was classified as critical, was found in Microsoft ASP.NET Core and .NET Core. The impacted element is an unknown function of the component Web Request Handler. Executing a manipulation can lead to input validation. This vulnerability is tracked as CVE-2017-0249. The attack can be launched remotely. No exploit exists.

Detailsinfo

A vulnerability classified as critical was found in Microsoft ASP.NET Core and .NET Core (affected version not known). This vulnerability affects some unknown functionality of the component Web Request Handler. The manipulation with an unknown input leads to a input validation vulnerability. The CWE definition for the vulnerability is CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

An elevation of privilege vulnerability exists when the ASP.NET Core fails to properly sanitize web requests.

The bug was discovered 05/09/2017. The weakness was disclosed 05/12/2017 (Website). The advisory is shared for download at github.com. This vulnerability was named CVE-2017-0249 since 09/09/2016. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $25k-$100k (estimation calculated on 12/06/2022).

The vulnerability was handled as a non-public zero-day exploit for at least 3 days. During that time the estimated underground price was around $5k-$25k.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The entries VDB-101151 and VDB-101153 are pretty similar. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

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License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 7.3

VulDB Base Score: 7.3
VulDB Temp Score: 7.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.3
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Input validation
CWE: CWE-20
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

09/09/2016 🔍
05/09/2017 +242 days 🔍
05/12/2017 +3 days 🔍
05/12/2017 +0 days 🔍
05/13/2017 +1 days 🔍
12/06/2022 +2033 days 🔍

Sourcesinfo

Vendor: microsoft.com

Advisory: 239
Status: Not defined

CVE: CVE-2017-0249 (🔍)
GCVE (CVE): GCVE-0-2017-0249
GCVE (VulDB): GCVE-100-101152
OSVDB: - CVE-2017-0249 - Microsoft - ASP.NET - Privilege Escalation Issue

See also: 🔍

Entryinfo

Created: 05/13/2017 08:58
Updated: 12/06/2022 12:04
Changes: 05/13/2017 08:58 (56), 09/25/2020 21:19 (2), 12/06/2022 12:04 (3)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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