VDB-139369 · CVE-2019-10938 · ssa-352504

Siemens SIPROTEC 5 Ethernet Plug-In Communication access control

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.
8.5	$5k-$25k	0.00

Summaryinfo

A vulnerability classified as critical has been found in Siemens SIPROTEC 5. Affected is an unknown function of the component Ethernet Plug-In Communication Module. This manipulation causes access control. The identification of this vulnerability is CVE-2019-10938. It is possible to initiate the attack remotely. There is no exploit available. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Detailsinfo

A vulnerability has been found in Siemens SIPROTEC 5 (version now known) and classified as critical. Affected by this vulnerability is some unknown processing of the component Ethernet Plug-In Communication Module. The manipulation with an unknown input leads to a access control vulnerability. The CWE definition for the vulnerability is CWE-284. The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

A vulnerability has been identified in Ethernet plug-in communication modules for SIPROTEC 5 devices with CPU variants CP200 (All versions), SIPROTEC 5 devices with CPU variants CP300 (All versions). An unauthenticated attacker with network access to the device could potentially insert arbitrary code which is executed before firmware verification in the device.

The weakness was shared 08/02/2019. This vulnerability is known as CVE-2019-10938 since 04/08/2019. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 11/20/2023). MITRE ATT&CK project uses the attack technique T1068 for this issue.

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

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Vendor

Siemens

Name

SIPROTEC 5

License

commercial

Website

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

CPE 2.3info

🔍

CPE 2.2info

🔍

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.5
VulDB Meta Temp Score: 8.5

VulDB Base Score: 7.3
VulDB Temp Score: 7.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔍

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: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Access control
CWE: CWE-284 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

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

04/08/2019 🔍
08/02/2019 +116 days 🔍
08/03/2019 +1 days 🔍
11/20/2023 +1570 days 🔍

Sourcesinfo

Vendor: siemens.com

Advisory: ssa-352504
Status: Not defined
Confirmation: 🔍

CVE: CVE-2019-10938 (🔍)
GCVE (CVE): GCVE-0-2019-10938
GCVE (VulDB): GCVE-100-139369

Entryinfo

Created: 08/03/2019 07:59 AM
Updated: 11/20/2023 01:11 PM
Changes: 08/03/2019 07:59 AM (51), 07/19/2020 10:50 AM (1), 11/20/2023 01:11 PM (4)
Complete: 🔍
Cache ID: 244:9C5:40