# CVE-2019-0757: NuGet Package Manager Tampering Vulnerability

CVE-2019-0757 is fixed in 6 products on 1 platform, first by RHSA-2019:1259, released May 22, 2019. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2019-0757
- Priority: High
- CVSS: 7.8 (Important)
- EPSS: 0.0270
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: yes
- Vendor exploitability assessment: Exploitation Less Likely
- Published: Mar 12, 2019
- Vendor advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2019-0757

## Description

<p>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.</p> <p>To exploit this vulnerability, an attacker would need to log on to the affected system and tamper with the folder contents of a package prior to building or installation of an application.</p> <p>The security update addresses the vulnerability by correcting permissions on folders inside the NuGet packages folder structure.</p>

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | dotnet RHEL 8 | 0:2.1.507-2.el8_0 | [RHSA-2019:1259](https://patchblox.com/security/data/fix/linux/rhsa-2019-1259.md) | May 22, 2019 |
| Linux | dotnet ol 8 | 0:2.1.507-2.el8_0 | [ELSA-2019-1259](https://patchblox.com/security/data/fix/linux/elsa-2019-1259.md) | Jul 30, 2019 |
| Linux | dotnet-host RHEL 8 | 0:2.1.11-2.el8_0 | [RHSA-2019:1259](https://patchblox.com/security/data/fix/linux/rhsa-2019-1259.md) | May 22, 2019 |
| Linux | dotnet-host ol 8 | 0:2.1.11-2.el8_0 | [ELSA-2019-1259](https://patchblox.com/security/data/fix/linux/elsa-2019-1259.md) | Jul 30, 2019 |
| Linux | dotnet-host-fxr-2.1 RHEL 8 | 0:2.1.11-2.el8_0 | [RHSA-2019:1259](https://patchblox.com/security/data/fix/linux/rhsa-2019-1259.md) | May 22, 2019 |
| Linux | dotnet-host-fxr-2.1 ol 8 | 0:2.1.11-2.el8_0 | [ELSA-2019-1259](https://patchblox.com/security/data/fix/linux/elsa-2019-1259.md) | Jul 30, 2019 |
| Linux | dotnet-runtime-2.1 RHEL 8 | 0:2.1.11-2.el8_0 | [RHSA-2019:1259](https://patchblox.com/security/data/fix/linux/rhsa-2019-1259.md) | May 22, 2019 |
| Linux | dotnet-runtime-2.1 ol 8 | 0:2.1.11-2.el8_0 | [ELSA-2019-1259](https://patchblox.com/security/data/fix/linux/elsa-2019-1259.md) | Jul 30, 2019 |
| Linux | dotnet-sdk-2.1 RHEL 8 | 0:2.1.507-2.el8_0 | [RHSA-2019:1259](https://patchblox.com/security/data/fix/linux/rhsa-2019-1259.md) | May 22, 2019 |
| Linux | dotnet-sdk-2.1 ol 8 | 0:2.1.507-2.el8_0 | [ELSA-2019-1259](https://patchblox.com/security/data/fix/linux/elsa-2019-1259.md) | Jul 30, 2019 |
| Linux | dotnet-sdk-2.1.5xx RHEL 8 | 0:2.1.507-2.el8_0 | [RHSA-2019:1259](https://patchblox.com/security/data/fix/linux/rhsa-2019-1259.md) | May 22, 2019 |
| Linux | dotnet-sdk-2.1.5xx ol 8 | 0:2.1.507-2.el8_0 | [ELSA-2019-1259](https://patchblox.com/security/data/fix/linux/elsa-2019-1259.md) | Jul 30, 2019 |

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