Intel CSME/TXE DAL Subsystem input validation

entryeditHistoryDiffjsonxmlCTI
CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.
CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
6.1$0-$5k0.00

A vulnerability has been found in Intel CSME and TXE and classified as problematic. This vulnerability affects an unknown part of the component DAL Subsystem. The manipulation with an unknown input leads to a privilege escalation vulnerability. The CWE definition for the vulnerability is CWE-20. As an impact it is known to affect confidentiality. CVE summarizes:

Improper input validation in the DAL subsystem for Intel(R) CSME versions before 11.8.77, 11.12.77, 11.22.77, 12.0.64, 13.0.32,14.0.33 and Intel(R) TXE versions before 3.1.75 and 4.0.25 may allow an unauthenticated user to potentially enable information disclosure via network access.

The weakness was disclosed 06/15/2020 (Website). The advisory is shared for download at intel.com. This vulnerability was named CVE-2020-0536 since 10/28/2019. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 10/24/2020).

Upgrading eliminates this vulnerability.

The entries 156707, 156708, 156709 and 156710 are pretty similar.

Affectededit

  • up to Intel CSME up to 11.8.76
  • Intel TXE up to 3.1.74/4.0.24

Productinfoedit

Vendor

Name

CPE 2.3infoedit

CPE 2.2infoedit

CVSSv3infoedit

VulDB Meta Base Score: 6.4
VulDB Meta Temp Score: 6.1

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔒

CVSSv2infoedit

AVACAuCIA
🔍🔍🔍🔍🔍🔍
🔍🔍🔍🔍🔍🔍
🔍🔍🔍🔍🔍🔍
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
unlockunlockunlockunlockunlockunlock
unlockunlockunlockunlockunlockunlock
unlockunlockunlockunlockunlockunlock

VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

NVD Base Score: 🔒

Exploitinginfoedit

Class: Privilege escalation (CWE-20)
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

Price Prediction: 🔍
Current Price Estimation: 🔒

0-Dayunlockunlockunlockunlock
Todayunlockunlockunlockunlock

Threat Intelligenceinfoedit

Threat: 🔍
Adversaries: 🔍
Geopolitics: 🔍
Economy: 🔍
Predictions: 🔍
Remediation: 🔍

Countermeasuresinfoedit

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Timelineinfoedit

10/28/2019 CVE assigned
06/15/2020 +231 days Advisory disclosed
06/16/2020 +1 days VulDB entry created
10/24/2020 +130 days VulDB last update

Sourcesinfoedit

Vendor: https://www.intel.com/

Advisory: intel.com
Status: Not defined
Confirmation: 🔒

CVE: CVE-2020-0536 (🔒)
See also: 🔒

Entryinfoedit

Created: 06/16/2020 07:51 AM
Updated: 10/24/2020 03:12 PM
Changes: (1) advisory_confirm_url
Complete: 🔍

Comments

No comments yet. Please log in to comment.

Do you need the next level of professionalism?

Upgrade your account now!