CVE-2022-1053
What it is
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,
At a glance
- Exploitability
- Can be exploited over the network without logging in. High risk of data exposure, data tampering.
- Exploit odds
- 1.5% chance of exploitation in the next 30 days (EPSS).
- Fix
- A patch, advisory or fixed version is referenced. Upgrade or apply it.
Timeline
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Why it ranks here
- Exploited in the wild: no, CISA does not list it.
- Exploit odds: 1.5% in the next 30 days (EPSS).
- Severity: 9.1 CRITICAL (CVSS).
- Fix: a patch or advisory is linked.
Details
- Published
- Last modified
- Exploit probability
- 1.5% · EPSS, next 30 days
- Weakness
- CWE-20 · Improper input validation
- Record status
- Modified
Affected
- Keylime < 6.4.0
- Fedoraproject Fedora 34
- Fedoraproject Fedora 35
- Fedoraproject Fedora 36
Attack profile CVSS 3.1 · 9.1
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- None
Raw vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Is it in your code?
Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.
Read https://cve-list.com/agent/cve/CVE-2022-1053.md and follow it. Check whether this project is affected by CVE-2022-1053. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
Fix and advisories
- https://github.com/keylime/keylime/commit/bd5de712acdd77860e7dc58969181e16c7a8dc5d
- https://github.com/keylime/keylime/security/advisories/GHSA-jf66-3q76-h5p5%2C
- https://github.com/keylime/keylime/commit/bd5de712acdd77860e7dc58969181e16c7a8dc5d
- https://github.com/keylime/keylime/security/advisories/GHSA-jf66-3q76-h5p5%2C
References
- https://bugzilla.redhat.com/show_bug.cgi?id=2065024%2C
- https://github.com/keylime/keylime/commit/bd5de712acdd77860e7dc58969181e16c7a8dc5d
- https://github.com/keylime/keylime/security/advisories/GHSA-jf66-3q76-h5p5%2C
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/A7WAKVXM7L5D2DUACV6EHA6EJNAX2GVL/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RF6QHU4UGSBATC3HOOE7OP66CYVTR7CV/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WEW2PAXO5YGLDLPG45YV2OPLJXJSCECQ/
- https://bugzilla.redhat.com/show_bug.cgi?id=2065024%2C
- https://github.com/keylime/keylime/commit/bd5de712acdd77860e7dc58969181e16c7a8dc5d
- https://github.com/keylime/keylime/security/advisories/GHSA-jf66-3q76-h5p5%2C
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/A7WAKVXM7L5D2DUACV6EHA6EJNAX2GVL/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RF6QHU4UGSBATC3HOOE7OP66CYVTR7CV/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WEW2PAXO5YGLDLPG45YV2OPLJXJSCECQ/