Siemens EN100 Ethernet Module up to 4.26 on SIPROTEC Web Server information disclosure

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.
5.2	$0-$5k	0.00

Summaryinfo

A vulnerability marked as problematic has been reported in Siemens EN100 Ethernet Module up to 4.26 on SIPROTEC. Affected by this issue is some unknown functionality of the component Web Server. Performing a manipulation results in information disclosure. This vulnerability was named CVE-2016-4784. There is no available exploit. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in Siemens EN100 Ethernet Module up to 4.26 on SIPROTEC. It has been classified as problematic. This affects an unknown code of the component Web Server. The manipulation with an unknown input leads to a information disclosure vulnerability. CWE is classifying the issue as CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. This is going to have an impact on confidentiality. The summary by CVE is:

The integrated web server in the EN100 Ethernet module before 4.27 on Siemens SIPROTEC 4 and SIPROTEC Compact devices, and the Ethernet Service Interface on SIPROTEC Compact devices, allows remote attackers to obtain sensitive information via an HTTP request.

The weakness was presented 05/31/2016 (Website). The advisory is shared at ics-cert.us-cert.gov. This vulnerability is uniquely identified as CVE-2016-4784 since 05/11/2016. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1592 for this issue.

Upgrading to version 4.27 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at SecurityFocus (BID 90773†). See VDB-87694 for similar entry. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Vendor

• Siemens

Name

• EN100 Ethernet Module

Version

• 4.0
• 4.1
• 4.2
• 4.3
• 4.4
• 4.5
• 4.6
• 4.7
• 4.8
• 4.9
• 4.10
• 4.11
• 4.12
• 4.13
• 4.14
• 4.15
• 4.16
• 4.17
• 4.18
• 4.19
• 4.20
• 4.21
• 4.22
• 4.23
• 4.24
• 4.25
• 4.26

License

• commercial

Website

• Vendor: https://www.siemens.com/

CPE 2.3info

• 🔍
• 🔍
• 🔍

CPE 2.2info

• 🔍
• 🔍
• 🔍

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.2

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.3
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: Information disclosure
CWE: CWE-200 / 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: Upgrade
Status: 🔍
Upgrade: EN100 Ethernet Module 4.27

Timelineinfo

05/11/2016 🔍
05/19/2016 +8 days 🔍
05/30/2016 +11 days 🔍
05/31/2016 +1 days 🔍
05/31/2016 +0 days 🔍
08/22/2022 +2274 days 🔍

Sourcesinfo

Vendor: siemens.com

Advisory: ssa-547990
Status: Not defined
Confirmation: 🔍

CVE: CVE-2016-4784 (🔍)
GCVE (CVE): GCVE-0-2016-4784
GCVE (VulDB): GCVE-100-87693
SecurityFocus: 90773 - Multiple Siemens SIPROTEC Products ICSA-16-140-02 Information Disclosure Vulnerabilities

See also: 🔍

Entryinfo

Created: 05/31/2016 09:26
Updated: 08/22/2022 15:06
Changes: 05/31/2016 09:26 (60), 12/22/2018 10:44 (4), 08/22/2022 15:06 (4)
Complete: 🔍
Cache ID: 216::103

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Discussion

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