fake-usreagant

Details

**Severity:** Critical

**Affected versions:** `= 0.0.3`

## Source: kam193 (ef713dc551a4b2eb9b0c94b270f4c214aa90e688076e15bb263b3bb5f3b8484b)
Package imitates the legitimate fake-useragent, however it has a few suspicious additions: fake.py L149 calls a function from 'urllib2' module, which contains a code attempting to JSON-deserialize encoded code. This is a pickle executing os.system(id), which of course isn't executed by json.loads, but would be by pickle. Also: action is suspicious, not really malicious, but the package is a clear typosquatting attempt.


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Category: PROBABLY_PENTEST - Packages looking like typical pentest packages, but also anything that looks like testing, exploring pre-prepared kits, research & co, with clearly low-harm possibilities.


Campaign: 2024-10-old-fake-usreagant


Reasons (based on the campaign):


 - action-hidden-in-lib-usage


 - clones-real-package


 - typosquatting


 - dependency-confusion

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Credit: [OpenSSF](https://github.com/ossf/malicious-packages) ([source](https://github.com/ossf/malicious-packages/blob/49d0cfba3689ed9b195d101d3a2a964c6a77f767/osv/malicious/pypi/fake-usreagant/MAL-2024-12270.json))

**References:**
- https://bad-packages.kam193.eu/pypi/package/fake-usreagant
- https://github.com/ossf/malicious-packages/blob/49d0cfba3689ed9b195d101d3a2a964c6a77f767/osv/malicious/pypi/fake-usreagant/MAL-2024-12270.json
- https://github.com/advisories/GHSA-89wr-rm65-4mjq

Compromised versions (1)

• = 0.0.3

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