VDB-166197 · CVE-2020-25233 · ssa-480824

Siemens LOGO! 8 BM up to 8.2 Firmware hard-coded key

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.
3.4	$0-$5k	0.00

Summaryinfo

A vulnerability has been found in Siemens LOGO! 8 BM up to 8.2 and classified as problematic. This impacts an unknown function of the component Firmware. Performing a manipulation results in hard-coded key. This vulnerability is reported as CVE-2020-25233. No exploit exists. The affected component should be upgraded.

Detailsinfo

A vulnerability, which was classified as problematic, was found in Siemens LOGO! 8 BM up to 8.2. This affects an unknown part of the component Firmware. The manipulation with an unknown input leads to a hard-coded key vulnerability. CWE is classifying the issue as CWE-321. The use of a hard-coded cryptographic key significantly increases the possibility that encrypted data may be recovered. This is going to have an impact on confidentiality.

The weakness was disclosed 12/15/2020 as ssa-480824. The advisory is shared at cert-portal.siemens.com. This vulnerability is uniquely identified as CVE-2020-25233. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1600.001 for this issue.

Upgrading to version 8.3 eliminates this vulnerability.

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Productinfo

Vendor

Siemens

Name

LOGO! 8 BM

Version

License

commercial

Website

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

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 3.5
VulDB Meta Temp Score: 3.4

VulDB Base Score: 3.5
VulDB Temp Score: 3.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

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: Hard-coded key
CWE: CWE-321 / CWE-320
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Partially

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: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: LOGO! 8 BM 8.3

Timelineinfo

09/10/2020 🔍
12/15/2020 +96 days 🔍
12/15/2020 +0 days 🔍
12/17/2020 +2 days 🔍

Sourcesinfo

Vendor: siemens.com

Advisory: ssa-480824
Status: Confirmed

CVE: CVE-2020-25233 (🔍)
GCVE (CVE): GCVE-0-2020-25233
GCVE (VulDB): GCVE-100-166197

Entryinfo

Created: 12/15/2020 07:10
Updated: 12/17/2020 11:35
Changes: 12/15/2020 07:10 (38), 12/17/2020 11:35 (5)
Complete: 🔍
Cache ID: 216::103