Improper Verification of Cryptographic Signature

Affecting tuf package, versions [,0.12.2)

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Overview

tuf is a secure updater framework for Python.

Affected versions of this package are vulnerable to Improper Verification of Cryptographic Signature. The metadadata signature verification as provided by tuf.sig.verify() and used components such as tuf.client.updater counted multiple signatures with identical authorized keyids each separately towards the threshold.

Remediation

Upgrade tuf to version 0.12.2 or higher.

References

CVSS Score

3.7
low severity
  • Attack Vector
    Network
  • Attack Complexity
    High
  • Privileges Required
    None
  • User Interaction
    None
  • Scope
    Unchanged
  • Confidentiality
    Low
  • Integrity
    None
  • Availability
    None
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:R
Credit
Unknown
CVE
CVE-2020-6174
CWE
CWE-347
Snyk ID
SNYK-PYTHON-TUF-546794
Disclosed
05 Feb, 2020
Published
05 Feb, 2020