Siemens SIMATIC IT LMS Username improper authentication

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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7.0$0-$5k0.00

Summaryinfo

A vulnerability classified as critical was found in Siemens SIMATIC IT LMS, SIMATIC IT Production Suite and SIMATIC IT UA Discrete Manufacturing. This affects an unknown part. The manipulation as part of Username results in improper authentication. This vulnerability is reported as CVE-2018-13804. The attacker must have access to the local network to execute the attack. No exploit exists. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in Siemens SIMATIC IT LMS, SIMATIC IT Production Suite and SIMATIC IT UA Discrete Manufacturing (SCADA Software) (version unknown). It has been classified as critical. Affected is an unknown function. The manipulation as part of a Username leads to a improper authentication vulnerability. CWE is classifying the issue as CWE-287. When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

A vulnerability has been identified in SIMATIC IT LMS (All versions), SIMATIC IT Production Suite (Versions V7.1 < V7.1 Upd3), SIMATIC IT UA Discrete Manufacturing (Versions < V1.2), SIMATIC IT UA Discrete Manufacturing (Versions V1.2), SIMATIC IT UA Discrete Manufacturing (Versions V1.3), SIMATIC IT UA Discrete Manufacturing (Versions V2.3), SIMATIC IT UA Discrete Manufacturing (Versions V2.4). An attacker with network access to the installation could bypass the application-level authentication. In order to exploit the vulnerability, an attacker must obtain network access to an affected installation and must obtain a valid username to the system. Successful exploitation requires no user privileges and no user interaction. The vulnerability could allow an attacker to compromise confidentiality, integrity and availability of the system. At the time of advisory publication no public exploitation of this vulnerability was known.

The bug was discovered 11/13/2018. The weakness was disclosed 12/13/2018 (Website). The advisory is shared for download at cert-portal.siemens.com. This vulnerability is traded as CVE-2018-13804 since 07/10/2018. The attack needs to approached within the local network. The exploitation doesn't require any form of authentication. There are neither technical details nor an exploit publicly available.

The vulnerability was handled as a non-public zero-day exploit for at least 30 days. During that time the estimated underground price was around $5k-$25k.

Upgrading eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at SecurityFocus (BID 105924†). Once again VulDB remains the best source for vulnerability data.

Productinfo

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Vendor

Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.2
VulDB Meta Temp Score: 7.0

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.1
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: Improper authentication
CWE: CWE-287
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: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

07/10/2018 🔍
11/13/2018 +126 days 🔍
11/13/2018 +0 days 🔍
12/13/2018 +30 days 🔍
12/13/2018 +0 days 🔍
12/14/2018 +1 days 🔍
06/18/2023 +1647 days 🔍

Sourcesinfo

Vendor: siemens.com

Advisory: ssa-886615
Status: Not defined
Confirmation: 🔍

CVE: CVE-2018-13804 (🔍)
GCVE (CVE): GCVE-0-2018-13804
GCVE (VulDB): GCVE-100-127932
SecurityFocus: 105924 - Siemens SIMATIC IT Production Suite CVE-2018-13804 Authentication Bypass Vulnerability

Entryinfo

Created: 12/14/2018 07:38
Updated: 06/18/2023 17:06
Changes: 12/14/2018 07:38 (60), 04/20/2020 17:53 (4), 06/18/2023 17:06 (4)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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