VDB-109157 · CVE-2017-14023 · BID 101680

Siemens SIMATIC PCS 7 up to 8.1 DCOM Interface Messages input validation

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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4.4$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic has been found in Siemens SIMATIC PCS 7 up to 8.1. This issue affects some unknown processing of the component DCOM Interface. The manipulation as part of Messages leads to input validation. This vulnerability is uniquely identified as CVE-2017-14023. The attack is possible to be carried out remotely. No exploit exists. Applying a patch is the recommended action to fix this issue.

Detailsinfo

A vulnerability was found in Siemens SIMATIC PCS 7 up to 8.1 (SCADA Software) and classified as problematic. This issue affects some unknown processing of the component DCOM Interface. The manipulation as part of a Messages 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:

An Improper Input Validation issue was discovered in Siemens SIMATIC PCS 7 V8.1 prior to V8.1 SP1 with WinCC V7.3 Upd 13, and V8.2 all versions. The improper input validation vulnerability has been identified, which may allow an authenticated remote attacker who is a member of the administrators group to crash services by sending specially crafted messages to the DCOM interface.

The bug was discovered 11/02/2017. The weakness was disclosed 11/06/2017 (Website). The advisory is shared at securityfocus.com. The identification of this vulnerability is CVE-2017-14023 since 08/30/2017. The attack may be initiated remotely. Required for exploitation is a simple authentication. Neither technical details nor an exploit are publicly available.

The vulnerability was handled as a non-public zero-day exploit for at least 4 days. During that time the estimated underground price was around $5k-$25k.

Applying the patch 8.1 SP1 is able to eliminate this problem.

The vulnerability is also documented in the vulnerability database at SecurityFocus (BID 101680†). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.6
VulDB Meta Temp Score: 4.5

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

NVD Base Score: 4.9
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: 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: Patch
Status: 🔍

0-Day Time: 🔍

Patch: 8.1 SP1

Timelineinfo

08/30/2017 🔍
11/02/2017 +64 days 🔍
11/02/2017 +0 days 🔍
11/06/2017 +4 days 🔍
11/06/2017 +0 days 🔍
11/07/2017 +1 days 🔍
01/23/2021 +1173 days 🔍

Sourcesinfo

Vendor: siemens.com

Advisory: securityfocus.com⛔
Researcher: Sergey Temnikov, Vladimir Dashchenko
Status: Not defined

CVE: CVE-2017-14023 (🔍)
GCVE (CVE): GCVE-0-2017-14023
GCVE (VulDB): GCVE-100-109157
SecurityFocus: 101680 - Siemens SIMATIC PCS 7 CVE-2017-14023 Denial of Service Vulnerability
SecurityTracker: 1039729

Entryinfo

Created: 11/07/2017 08:00
Updated: 01/23/2021 08:49
Changes: 11/07/2017 08:00 (62), 12/04/2019 16:40 (3), 01/23/2021 08:44 (3), 01/23/2021 08:49 (1)
Complete: 🔍
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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