Siemens SIPROTEC 4/SIPROTEC Compact EN100 Ethernet Communication Crafted Packet input validation

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.4$5k-$25k0.00

Summaryinfo

A vulnerability classified as problematic has been found in Siemens SIPROTEC 4 and SIPROTEC Compact. The impacted element is an unknown function of the component EN100 Ethernet Communication Module. This manipulation as part of Crafted Packet causes input validation. This vulnerability appears as CVE-2019-19279. The attack may be initiated remotely. There is no available exploit.

Detailsinfo

A vulnerability has been found in Siemens SIPROTEC 4 and SIPROTEC Compact (version now known) and classified as problematic. Affected by this vulnerability is some unknown processing of the component EN100 Ethernet Communication Module. The manipulation as part of a Crafted Packet leads to a input validation vulnerability. The CWE definition for the vulnerability is 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. As an impact it is known to affect availability. The summary by CVE is:

A vulnerability has been identified in SIPROTEC 4 and SIPROTEC Compact relays equipped with EN100 Ethernet communication modules (All versions). Specially crafted packets sent to port 50000/UDP of the EN100 Ethernet communication modules could cause a Denial-of-Service of the affected device. A manual reboot is required to recover the service of the device. At the time of advisory publication no public exploitation of this security vulnerability was known to Siemens.

The weakness was presented 03/10/2020. This vulnerability is known as CVE-2019-19279 since 11/26/2019. The exploitation appears to be easy. 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 03/11/2020).

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

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Productinfo

Vendor

Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

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

VulDB Base Score: 5.3
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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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: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

11/26/2019 🔍
03/10/2020 +105 days 🔍
03/11/2020 +1 days 🔍
04/11/2024 +1492 days 🔍

Sourcesinfo

Vendor: siemens.com

Advisory: ssa-974843
Status: Not defined

CVE: CVE-2019-19279 (🔍)
GCVE (CVE): GCVE-0-2019-19279
GCVE (VulDB): GCVE-100-151213

Entryinfo

Created: 03/11/2020 12:19
Updated: 04/11/2024 09:54
Changes: 03/11/2020 12:19 (35), 03/11/2020 12:24 (17), 04/11/2024 09:54 (18)
Complete: 🔍
Cache ID: 216::103

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