VDB-139979 · CVE-2019-10927 · ssa-671286

Siemens SCALANCE SC-600 SSH Service input validation

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.
6.4	$0-$5k	0.00

Summaryinfo

A vulnerability was found in Siemens SCALANCE SC-600, SCALANCE XB-200, SCALANCE XC-200, SCALANCE XF-200BA, SCALANCE XP-200 and SCALANCE XR-300WG. It has been rated as problematic. This issue affects some unknown processing of the component SSH Service. The manipulation leads to input validation. This vulnerability is traded as CVE-2019-10927. It is possible to initiate the attack remotely. There is no exploit available. It is recommended to apply restrictive firewalling.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Siemens SCALANCE SC-600, SCALANCE XB-200, SCALANCE XC-200, SCALANCE XF-200BA, SCALANCE XP-200 and SCALANCE XR-300WG. This issue affects an unknown function of the component SSH Service. The manipulation with an unknown input leads to a input validation vulnerability. Using CWE to declare the problem leads to CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. Impacted is availability. The summary by CVE is:

A vulnerability has been identified in SCALANCE SC-600 (V2.0), SCALANCE XB-200 (V4.1), SCALANCE XC-200 (V4.1), SCALANCE XF-200BA (V4.1), SCALANCE XP-200 (V4.1), SCALANCE XR-300WG (V4.1). An authenticated attacker with network access to to port 22/tcp of an affected device may cause a Denial-of-Service condition. The security vulnerability could be exploited by an authenticated attacker with network access to the affected device. No user interaction is required to exploit this vulnerability. The vulnerability impacts the availability of the affected device.

The weakness was shared 08/13/2019 (Website). It is possible to read the advisory at cert-portal.siemens.com. The identification of this vulnerability is CVE-2019-10927 since 04/08/2019. The attack may be initiated remotely. The successful exploitation requires a simple authentication. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 11/25/2023).

Addressing this vulnerability is possible by firewalling tcp/22 (ssh).

The entry VDB-139980 is related to this item. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Vendor

Siemens

Name

License

commercial

Website

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

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.5
VulDB Meta Temp Score: 6.4

VulDB Base Score: 6.5
VulDB Temp Score: 6.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.5
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Input validation
CWE: CWE-20
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
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: Firewall
Status: 🔍

0-Day Time: 🔍

Firewalling: 🔍

Timelineinfo

04/08/2019 🔍
08/13/2019 +127 days 🔍
08/15/2019 +2 days 🔍
11/25/2023 +1563 days 🔍

Sourcesinfo

Vendor: siemens.com

Advisory: ssa-671286
Status: Not defined

CVE: CVE-2019-10927 (🔍)
GCVE (CVE): GCVE-0-2019-10927
GCVE (VulDB): GCVE-100-139979
See also: 🔍

Entryinfo

Created: 08/15/2019 06:55
Updated: 11/25/2023 07:13
Changes: 08/15/2019 06:55 (55), 07/27/2020 16:16 (1), 11/25/2023 07:13 (3)
Complete: 🔍
Cache ID: 216::103

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