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nuget · Malicious package advisory

Malware

Tessa.Web.Client.Net

GHSA-qqc8-8f3p-cq7w

Malicious code in Tessa.Web.Client.Net (NuGet)

Details

**Severity:** Critical

**Affected versions:** `= 3.6.0.16`

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Credit: [OpenSSF](https://github.com/ossf/malicious-packages) ([source](https://github.com/ossf/malicious-packages/blob/9aaf0fdbaff8ed98e8872dbc3591cc0de3add4ae/osv/malicious/nuget/tessa.web.client.net/MAL-2024-4684.json))

**References:**
- https://github.com/ossf/malicious-packages/blob/9aaf0fdbaff8ed98e8872dbc3591cc0de3add4ae/osv/malicious/nuget/tessa.web.client.net/MAL-2024-4684.json
- https://www.reversinglabs.com/blog/iamreboot-malicious-nuget-packages-exploit-msbuild-loophole
- https://github.com/advisories/GHSA-qqc8-8f3p-cq7w

Compromised versions (1)

  • = 3.6.0.16

Any computer that installed or ran a compromised version should be considered fully compromised. Rotate every secret on that machine from a clean environment.