VDB-228408 · CVE-2023-27408 · ssa-325383

Siemens SCALANCE LPE9403 up to 2.0 i2c Mutex File temp file

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.
3.8	$0-$5k	0.00

Summaryinfo

A vulnerability described as problematic has been identified in Siemens SCALANCE LPE9403 up to 2.0. This issue affects some unknown processing of the component i2c Mutex File Handler. The manipulation results in temp file. This vulnerability was named CVE-2023-27408. The attack needs to be approached locally. There is no available exploit. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in Siemens SCALANCE LPE9403 up to 2.0. It has been classified as problematic. Affected is an unknown code block of the component i2c Mutex File Handler. The manipulation with an unknown input leads to a temp file vulnerability. CWE is classifying the issue as CWE-378. Opening temporary files without appropriate measures or controls can leave the file, its contents and any function that it impacts vulnerable to attack. This is going to have an impact on integrity, and availability. CVE summarizes:

A vulnerability has been identified in SCALANCE LPE9403 (All versions < V2.1). The `i2c` mutex file is created with the permissions bits of `-rw-rw-rw-`. This file is used as a mutex for multiple applications interacting with i2c. This could allow an authenticated attacker with access to the SSH interface on the affected device to interfere with the integrity of the mutex and the data it protects.

The weakness was presented 05/09/2023 as ssa-325383. The advisory is shared for download at cert-portal.siemens.com. This vulnerability is traded as CVE-2023-27408 since 03/01/2023. There are neither technical details nor an exploit publicly available.

Upgrading to version 2.1 eliminates this vulnerability.

VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Vendor

Siemens

Name

SCALANCE LPE9403

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: 3.9
VulDB Meta Temp Score: 3.8

VulDB Base Score: 4.4
VulDB Temp Score: 4.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA Base Score: 3.3
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: Temp file
CWE: CWE-378 / CWE-377
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
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: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: SCALANCE LPE9403 2.1

Timelineinfo

03/01/2023 🔍
05/09/2023 +68 days 🔍
05/09/2023 +0 days 🔍
05/09/2023 +0 days 🔍

Sourcesinfo

Vendor: siemens.com

Advisory: ssa-325383
Status: Confirmed

CVE: CVE-2023-27408 (🔍)
GCVE (CVE): GCVE-0-2023-27408
GCVE (VulDB): GCVE-100-228408

Entryinfo

Created: 05/09/2023 16:08
Changes: 05/09/2023 16:08 (50)
Complete: 🔍
Cache ID: 216::103