Siemens SIMATIC PCS 7/SIMATIC WinCC DCOM Interface input validation

CVSS Meta Temp Score
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CTI Interest Score
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8.8$5k-$25k0.00

A vulnerability classified as critical has been found in Siemens SIMATIC PCS 7 and SIMATIC WinCC (SCADA Software) (the affected version is unknown). This affects an unknown code of the component DCOM Interface. The manipulation with an unknown input leads to a input validation vulnerability. CWE is classifying the issue as 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. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

A vulnerability has been identified in SIMATIC PCS 7 V8.0 and earlier (All versions), SIMATIC PCS 7 V8.1 (All versions), SIMATIC PCS 7 V8.2 (All versions), SIMATIC PCS 7 V9.0 (All versions), SIMATIC WinCC (TIA Portal) V13 (All versions), SIMATIC WinCC (TIA Portal) V14 (All versions), SIMATIC WinCC (TIA Portal) V15 (All versions), SIMATIC WinCC Runtime Professional (All versions), SIMATIC WinCC V7.2 and earlier (All versions), SIMATIC WinCC V7.3 (All versions), SIMATIC WinCC V7.4 (All versions), SIMATIC WinCC V7.5 (All versions < V7.5 Upd3). An authenticatd attacker with network access to the DCOM interface could execute arbitrary commands with SYSTEM privileges. The vulnerability could be exploited by an attacker with network access to the affected system. Successful exploitation requires authentication with a low-privileged user account and no user interaction. An attacker could use the vulnerability to compromise confidentiality and integrity and availability of the affected system. At the time of advisory publication no public exploitation of this security vulnerability was known.

The bug was discovered 05/14/2019. The weakness was disclosed 05/14/2019. This vulnerability is uniquely identified as CVE-2019-10918 since 04/08/2019. It is possible to initiate the attack remotely. A authentication is needed for exploitation. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 09/19/2023).

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

The entries 135025 and 135026 are pretty similar.

Productinfo

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License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.8
VulDB Meta Temp Score: 8.8

VulDB Base Score: 8.8
VulDB Temp Score: 8.8
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.8
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
ATT&CK: Unknown

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

04/08/2019 🔍
05/14/2019 +36 days 🔍
05/14/2019 +0 days 🔍
05/15/2019 +1 days 🔍
09/19/2023 +1588 days 🔍

Sourcesinfo

Vendor: siemens.com

Advisory: ssa-697412
Status: Not defined
Confirmation: 🔍

CVE: CVE-2019-10918 (🔍)
SecurityFocus: 108404

See also: 🔍

Entryinfo

Created: 05/15/2019 10:20
Updated: 09/19/2023 13:28
Changes: 05/15/2019 10:20 (53), 06/12/2020 10:05 (2), 09/19/2023 13:22 (4), 09/19/2023 13:28 (1)
Complete: 🔍

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