Siemens SIMATIC S7 Crafted Packet data processing

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.7$0-$5k0.00

Summaryinfo

A vulnerability has been found in Siemens SIMATIC S7 and classified as problematic. Affected by this vulnerability is an unknown functionality. The manipulation as part of Crafted Packet leads to data processing. This vulnerability is listed as CVE-2017-12741. The attack may be initiated remotely. There is no available exploit. It is recommended to apply restrictive firewalling.

Detailsinfo

A vulnerability was found in Siemens SIMATIC S7 (SCADA Software) (the affected version unknown). It has been rated as problematic. This issue affects an unknown part. The manipulation as part of a Crafted Packet leads to a data processing vulnerability. Using CWE to declare the problem leads to CWE-19. Impacted is availability. The summary by CVE is:

A vulnerability has been identified in the following Siemens industrial products: SIMATIC S7-200 Smart: All versions < V2.03.01, SIMATIC S7-400 PN V6: All versions < V6.0.6, SIMATIC S7-400 H V6: All versions < 6.0.8, SIMATIC S7-400 PN/DP V7: All versions, SIMATIC S7-410 V8: All versions, SIMATIC S7-300: All versions, SIMATIC S7-1200: All versions, SIMATIC S7-1500: All versions < 2.0, SIMATIC S7-1500 Software Controller: All versions < 2.0, SIMATIC WinAC RTX 2010 incl. F: All versions, SIMATIC ET 200AL: All versions, SIMATIC ET 200ecoPN: All versions, SIMATIC ET 200M: All versions, SIMATIC ET 200MP: All versions, SIMATIC ET 200pro: All versions, SIMATIC ET 200S: All versions, SIMATIC ET 200SP: All versions, DK Standard Ethernet Controller: All versions, EK-ERTEC 200P: All versions < V4.5, EK-ERTEC 200 PN IO: All versions, SIMOTION D: All versions < V5.1 HF1, SIMOTION C: All versions < V5.1 HF1, SIMOTION P: All versions < V5.1 HF1, SINAMICS DCM: All versions, SINAMICS DCP: All versions, SINAMICS G110M / G120(C/P/D) w. PN: All versions < V4.7 SP9 HF1, SINAMICS G130 and G150: All versions, SINAMICS S110 w. PN: All versions, SINAMICS S120: All versions, SINAMICS S150 V4.7 and V4.8: All versions, SINAMICS V90 w. PN: All versions, SINUMERIK 840D sl: All versions, SIMATIC Compact Field Unit: All versions, SIMATIC PN/PN Coupler: All versions, SIMOCODE pro V PROFINET: All versions, SIRIUS Soft starter 3RW44 PN: All versions. Specially crafted packets sent to port 161/UDP could cause a Denial-of-Service condition. The affected devices must be restarted manually.

The bug was discovered 12/05/2017. The weakness was presented 12/26/2017 (Website). It is possible to read the advisory at siemens.com. The identification of this vulnerability is CVE-2017-12741 since 08/09/2017. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. The technical details are unknown and an exploit is not publicly available.

The vulnerability was handled as a non-public zero-day exploit for at least 20 days. During that time the estimated underground price was around $5k-$25k.

Addressing this vulnerability is possible by firewalling udp/161.

The vulnerability is also documented in the vulnerability database at SecurityFocus (BID 101964†). Be aware that VulDB is the high quality 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: 6.8
VulDB Meta Temp Score: 6.7

VulDB Base Score: 5.3
VulDB Temp Score: 5.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CNA Base Score: 7.5
CNA 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: Data processing
CWE: CWE-19
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: Firewall
Status: 🔍

0-Day Time: 🔍

Firewalling: 🔍

Timelineinfo

08/09/2017 🔍
11/23/2017 +106 days 🔍
12/05/2017 +12 days 🔍
12/25/2017 +20 days 🔍
12/26/2017 +1 days 🔍
12/26/2017 +0 days 🔍
07/09/2024 +2387 days 🔍

Sourcesinfo

Vendor: siemens.com

Advisory: ssa-141614
Researcher: George Lashenko, Security researcher
Status: Not defined
Confirmation: 🔍

CVE: CVE-2017-12741 (🔍)
GCVE (CVE): GCVE-0-2017-12741
GCVE (VulDB): GCVE-100-111023
SecurityFocus: 101964 - Multiple Siemens Products CVE-2017-12741 Denial of Service Vulnerability

Entryinfo

Created: 12/26/2017 09:07
Updated: 07/09/2024 16:39
Changes: 12/26/2017 09:07 (60), 12/17/2019 18:03 (4), 01/28/2021 07:58 (2), 01/19/2023 07:16 (3), 07/09/2024 16:39 (26)
Complete: 🔍
Cache ID: 216::103

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