VDB-217778 · CVE-2022-38773 · ssa-482757

Siemens SIMATIC missing immutable root of trust in hardware

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.
5.8	$0-$5k	0.00

Summaryinfo

A vulnerability categorized as critical has been discovered in Siemens SIMATIC. Affected by this vulnerability is an unknown functionality. Such manipulation leads to missing immutable root of trust in hardware. This vulnerability is listed as CVE-2022-38773. The attack can be executed directly on the physical device. There is no available exploit.

Detailsinfo

A vulnerability was found in Siemens SIMATIC (SCADA Software) (affected version unknown) and classified as critical. Affected by this issue is an unknown functionality. The manipulation with an unknown input leads to a missing immutable root of trust in hardware vulnerability. Using CWE to declare the problem leads to CWE-1326. A missing immutable root of trust in the hardware results in the ability to bypass secure boot or execute untrusted or adversarial boot code. Impacted is integrity, and availability. CVE summarizes:

Affected devices do not contain an Immutable Root of Trust in Hardware. With this the integrity of the code executed on the device can not be validated during load-time. An attacker with physical access to the device could use this to replace the boot image of the device and execute arbitrary code.

The weakness was presented 01/10/2023 as ssa-482757. The advisory is available at cert-portal.siemens.com. This vulnerability is handled as CVE-2022-38773 since 08/26/2022. The technical details are unknown and an exploit is not available. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 06/11/2024).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Type

SCADA Software

Vendor

Siemens

Name

SIMATIC

License

commercial

Website

Vendor: https://www.siemens.com/

CPE 2.3info

🔍

CPE 2.2info

🔍

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.8
VulDB Meta Temp Score: 5.8

VulDB Base Score: 6.1
VulDB Temp Score: 6.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.8
NVD Vector: 🔍

CNA Base Score: 4.6
CNA Vector (Siemens AG): 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

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

Exploitinginfo

Class: Missing immutable root of trust in hardware
CWE: CWE-1326
CAPEC: 🔍
ATT&CK: 🔍

Physical: Yes
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

08/26/2022 🔍
01/10/2023 +137 days 🔍
01/10/2023 +0 days 🔍
06/11/2024 +518 days 🔍

Sourcesinfo

Vendor: siemens.com

Advisory: ssa-482757
Status: Confirmed

CVE: CVE-2022-38773 (🔍)
GCVE (CVE): GCVE-0-2022-38773
GCVE (VulDB): GCVE-100-217778

Entryinfo

Created: 01/10/2023 14:52
Updated: 06/11/2024 12:42
Changes: 01/10/2023 14:52 (47), 06/11/2024 12:42 (25)
Complete: 🔍
Cache ID: 216::103