7.1
HIGH
CVE-2018-6622
TPM 2.0 BIOS Clearing Static PCRs via S3 Sleep
Description

An issue was discovered that affects all producers of BIOS firmware who make a certain realistic interpretation of an obscure portion of the Trusted Computing Group (TCG) Trusted Platform Module (TPM) 2.0 specification. An abnormal case is not handled properly by this firmware while S3 sleep and can clear TPM 2.0. It allows local users to overwrite static PCRs of TPM and neutralize the security features of it, such as seal/unseal and remote attestation.

INFO

Published Date :

Aug. 17, 2018, 6:29 p.m.

Last Modified :

Oct. 3, 2019, 12:03 a.m.

Source :

[email protected]

Remotely Exploitable :

No

Impact Score :

5.2

Exploitability Score :

1.8
Public PoC/Exploit Available at Github

CVE-2018-6622 has a 7 public PoC/Exploit available at Github. Go to the Public Exploits tab to see the list.

Affected Products

The following products are affected by CVE-2018-6622 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Trustedcomputinggroup trusted_platform_module
: Total Affected Vendor : 1 | Products : 1
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2018-6622.

URL Resource
http://www.securityfocus.com/bid/105203 Third Party Advisory VDB Entry
https://www.usenix.org/conference/usenixsecurity18/presentation/han Third Party Advisory

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Profile Photo
OCEANOFANYTHING/bitleaker

None

Makefile C Python Shell

Updated: 3 years, 8 months ago
0 stars 0 fork 0 watcher
Born at : Feb. 21, 2021, 3:53 p.m. This repo has been linked 1 different CVEs too.
Profile Photo
hectorgie/PoC-in-GitHub

None

Updated: 1 year, 2 months ago
17 stars 10 fork 10 watcher
Born at : Jan. 2, 2021, 10:19 p.m. This repo has been linked 1050 different CVEs too.
Profile Photo
0xT11/CVE-POC

None

Updated: 2 months, 2 weeks ago
82 stars 32 fork 32 watcher
Born at : Oct. 2, 2020, 2:49 p.m. This repo has been linked 1111 different CVEs too.
Profile Photo
jai199/Bitleaker

None

Makefile C Python Shell

Updated: 4 years, 2 months ago
0 stars 0 fork 0 watcher
Born at : Aug. 24, 2020, 6:56 a.m. This repo has been linked 1 different CVEs too.
Profile Photo
kkamagui/bitleaker

This tool can decrypt a BitLocker-locked partition with the TPM vulnerability

blackhat cve-2018-6622 tpm-20 blackhateurope-2019

Makefile C Python Shell

Updated: 2 months, 1 week ago
180 stars 33 fork 33 watcher
Born at : Oct. 12, 2019, 9:23 p.m. This repo has been linked 1 different CVEs too.
Profile Photo
lp008/Hack-readme

None

Updated: 4 months, 1 week ago
65 stars 22 fork 22 watcher
Born at : Aug. 9, 2019, 11:24 a.m. This repo has been linked 66 different CVEs too.
Profile Photo
kkamagui/napper-for-tpm

TPM vulnerability checking tool for CVE-2018-6622. This tool will be published at Black Hat Asia 2019 and Black Hat Europe 2019

blackhat2019 blackhat tpm cve-2018-6622 dtpm ftpm intel-ptt

Shell Makefile C Python

Updated: 2 months, 1 week ago
96 stars 19 fork 19 watcher
Born at : Feb. 7, 2019, 6:45 a.m. This repo has been linked 1 different CVEs too.

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2018-6622 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2018-6622 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • CWE Remap by [email protected]

    Oct. 03, 2019

    Action Type Old Value New Value
    Changed CWE CWE-254 CWE-254 NVD-CWE-noinfo
  • Initial Analysis by [email protected]

    Oct. 29, 2018

    Action Type Old Value New Value
    Added CVSS V2 (AV:L/AC:L/Au:N/C:N/I:P/A:P)
    Added CVSS V3 AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
    Changed Reference Type http://www.securityfocus.com/bid/105203 No Types Assigned http://www.securityfocus.com/bid/105203 Third Party Advisory, VDB Entry
    Changed Reference Type https://www.usenix.org/conference/usenixsecurity18/presentation/han No Types Assigned https://www.usenix.org/conference/usenixsecurity18/presentation/han Third Party Advisory
    Added CWE CWE-254
    Added CPE Configuration OR *cpe:2.3:a:trustedcomputinggroup:trusted_platform_module:2.0:*:*:*:*:*:*:*
  • CVE Modified by [email protected]

    Sep. 05, 2018

    Action Type Old Value New Value
    Added Reference http://www.securityfocus.com/bid/105203 [No Types Assigned]
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2018-6622 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2018-6622 weaknesses.

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.04 }} 0.00%

score

0.05635

percentile

CVSS30 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
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