Microsoft .NET Core SDK 1.1/2.1.500 Package Manager access control

CVSS Meta Temp Score
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CTI Interest Score
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6.2$0-$5k0.00

Summaryinfo

A vulnerability has been found in Microsoft .NET Core SDK 1.1/2.1.500 and classified as critical. Affected by this vulnerability is an unknown functionality of the component Package Manager. This manipulation causes access control. The identification of this vulnerability is CVE-2019-0757. It is possible to initiate the attack remotely. There is no exploit available. To fix this issue, it is recommended to deploy a patch.

Detailsinfo

A vulnerability was found in Microsoft .NET Core SDK 1.1/2.1.500. It has been declared as critical. Affected by this vulnerability is an unknown part of the component Package Manager. The manipulation with an unknown input leads to a access control vulnerability. The CWE definition for the vulnerability is CWE-284. The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

A tampering vulnerability exists in the NuGet Package Manager for Linux and Mac that could allow an authenticated attacker to modify a NuGet package's folder structure, aka 'NuGet Package Manager Tampering Vulnerability'.

The bug was discovered 03/12/2019. The weakness was shared 03/12/2019 as confirmed security update guide (Website). It is possible to read the advisory at portal.msrc.microsoft.com. The vendor cooperated in the coordination of the public release. This vulnerability is known as CVE-2019-0757 since 11/26/2018. The attack can be launched remotely. A single authentication is necessary for exploitation. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1068 according to MITRE ATT&CK. The advisory points out:

A tampering vulnerability exists in the NuGet Package Manager for Linux and Mac that could allow an authenticated attacker to modify a NuGet package's folder structure. An attacker who successfully exploited this vulnerability could potentially modify files and folders that are unpackaged on a system.

The commercial vulnerability scanner Qualys is able to test this issue with plugin 237251 (Red Hat Update for dotnet (RHSA-2019:1259)).

Applying a patch is able to eliminate this problem. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The entries VDB-131660, VDB-131661 and VDB-131662 are related to this item. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.4
VulDB Meta Temp Score: 6.2

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.5
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

Class: Access control
CWE: CWE-284 / CWE-266
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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Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Timelineinfo

11/26/2018 🔍
03/12/2019 +106 days 🔍
03/12/2019 +0 days 🔍
03/12/2019 +0 days 🔍
03/13/2019 +1 days 🔍
08/01/2023 +1602 days 🔍

Sourcesinfo

Vendor: microsoft.com

Advisory: RHSA-2019:1259
Status: Confirmed
Coordinated: 🔍

CVE: CVE-2019-0757 (🔍)
GCVE (CVE): GCVE-0-2019-0757
GCVE (VulDB): GCVE-100-131659
See also: 🔍

Entryinfo

Created: 03/13/2019 15:15
Updated: 08/01/2023 08:24
Changes: 03/13/2019 15:15 (61), 05/16/2020 07:23 (4), 08/01/2023 08:24 (4)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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