Siemens SIMATIC Ident MV420/SIMATIC Ident MV440 cryptographic issues

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.
5.5$5k-$25k0.00

A vulnerability was found in Siemens SIMATIC Ident MV420 and SIMATIC Ident MV440 (SCADA Software) (unknown version). It has been rated as critical. This issue affects an unknown code block. The manipulation with an unknown input leads to a cryptographic issues vulnerability. Using CWE to declare the problem leads to CWE-310. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

A vulnerability has been identified in SIMATIC Ident MV420 family (All versions), SIMATIC Ident MV440 family (All versions). Communication with the device is not encrypted. Data transmitted between the device and the user can be obtained by an attacker in a privileged network position. The security vulnerability can be exploited by an attacker in a privileged network position which allows evesdropping the communication between the affected device and the user. The user must invoke a session. Successful exploitation of the vulnerability compromises confidentiality of the data transmitted. At the time of advisory publication no public exploitation of this security vulnerability was known.

The weakness was released 06/12/2019 (Website). The advisory is shared at securityfocus.com. The identification of this vulnerability is CVE-2019-10926 since 04/08/2019. The exploitation is known to be difficult. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. 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 10/05/2023). MITRE ATT&CK project uses the attack technique T1600 for this issue.

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

Entry connected to this vulnerability is available at 136420.

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CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.5
VulDB Meta Temp Score: 5.5

VulDB Base Score: 5.6
VulDB Temp Score: 5.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.3
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Cryptographic issues
CWE: CWE-310
CAPEC: 🔍
ATT&CK: 🔍

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

04/08/2019 🔍
06/12/2019 +65 days 🔍
06/12/2019 +0 days 🔍
10/05/2023 +1576 days 🔍

Sourcesinfo

Vendor: siemens.com

Advisory: ssa-816980⛔
Status: Not defined

CVE: CVE-2019-10926 (🔍)
SecurityFocus: 108725

See also: 🔍

Entryinfo

Created: 06/12/2019 21:43
Updated: 10/05/2023 07:43
Changes: 06/12/2019 21:43 (54), 06/23/2020 16:22 (1), 10/05/2023 07:43 (4)
Complete: 🔍

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