VDB-97185 · CVE-2017-2684 · BID 96208

Siemens SIMATIC Logon up to 1.5 SP3 Update 1 access control

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.3$0-$5k0.00

Summaryinfo

A vulnerability marked as critical has been reported in Siemens SIMATIC Logon up to 1.5 SP3 Update 1. Affected by this vulnerability is an unknown functionality. Performing a manipulation results in access control. This vulnerability is known as CVE-2017-2684. The attack may be carried out on the physical device. No exploit is available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, was found in Siemens SIMATIC Logon up to 1.5 SP3 Update 1 (SCADA Software). This affects an unknown code. The manipulation with an unknown input leads to a access control vulnerability. CWE is classifying the issue as CWE-284. The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

Siemens SIMATIC Logon prior to V1.5 SP3 Update 2 could allow an attacker with knowledge of a valid user name, and physical or network access to the affected system, to bypass the application-level authentication.

The bug was discovered 02/13/2017. The weakness was published 02/22/2017 (Website). The advisory is shared at siemens.com. This vulnerability is uniquely identified as CVE-2017-2684 since 12/01/2016. An attack has to be approached locally. 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 T1068 for this issue.

The vulnerability was handled as a non-public zero-day exploit for at least 8 days. During that time the estimated underground price was around $0-$5k.

Upgrading to version 1.5 SP3 Update 2 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at SecurityFocus (BID 96208†). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.6
VulDB Meta Temp Score: 6.5

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.0
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: Access control
CWE: CWE-284 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Physical: Yes
Local: Yes
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: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: SIMATIC Logon 1.5 SP3 Update 2

Timelineinfo

12/01/2016 🔍
02/13/2017 +74 days 🔍
02/14/2017 +1 days 🔍
02/21/2017 +7 days 🔍
02/22/2017 +1 days 🔍
02/22/2017 +0 days 🔍
09/02/2020 +1288 days 🔍

Sourcesinfo

Vendor: siemens.com

Advisory: siemens.com
Status: Not defined
Confirmation: 🔍

CVE: CVE-2017-2684 (🔍)
GCVE (CVE): GCVE-0-2017-2684
GCVE (VulDB): GCVE-100-97185
SecurityFocus: 96208 - Siemens SIMATIC Logon CVE-2017-2684 Authentication Bypass Vulnerability
OSVDB: - CVE-2017-2684 - Siemens - SIMATIC Logon - Authentication Bypass Issue

Entryinfo

Created: 02/22/2017 11:58
Updated: 09/02/2020 12:12
Changes: 02/22/2017 11:58 (61), 09/02/2020 12:12 (5)
Complete: 🔍
Cache ID: 216:7E6:103

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

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