id: PYSEC-2022-184
details: Keylime does not enforce that the agent registrar data is the same when the
  tenant uses it for validation of the EK and identity quote and the verifier for
  validating the integrity quote. This allows an attacker to use one AK, EK pair from
  a real TPM to pass EK validation and give the verifier an AK of a software TPM.
  A successful attack breaks the entire chain of trust because a not validated AK
  is used by the verifier. This issue is worse if the validation happens first and
  then the agent gets added to the verifier because the timing is easier and the verifier
  does not validate the regcount entry being equal to 1,
affected:
- package:
    name: keylime
    ecosystem: PyPI
    purl: pkg:pypi/keylime
  ranges:
  - type: GIT
    repo: https://github.com/keylime/keylime
    events:
    - introduced: "0"
    - fixed: bd5de712acdd77860e7dc58969181e16c7a8dc5d
  - type: ECOSYSTEM
    events:
    - introduced: "0"
    - fixed: 6.4.0
  versions:
  - 6.3.1
  - 6.3.2
references:
- type: REPORT
  url: https://bugzilla.redhat.com/show_bug.cgi?id=2065024,
- type: FIX
  url: https://github.com/keylime/keylime/commit/bd5de712acdd77860e7dc58969181e16c7a8dc5d
- type: ADVISORY
  url: https://github.com/keylime/keylime/security/advisories/GHSA-jf66-3q76-h5p5,
- type: WEB
  url: https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/A7WAKVXM7L5D2DUACV6EHA6EJNAX2GVL/
- type: WEB
  url: https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/WEW2PAXO5YGLDLPG45YV2OPLJXJSCECQ/
- type: WEB
  url: https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/RF6QHU4UGSBATC3HOOE7OP66CYVTR7CV/
- type: ADVISORY
  url: https://github.com/advisories/GHSA-jf66-3q76-h5p5
aliases:
- CVE-2022-1053
- GHSA-jf66-3q76-h5p5
modified: "2022-05-17T21:40:52.506546Z"
published: "2022-05-06T17:15:00Z"