Siemens SIMATIC Wincc Runtime up to 1.03.367 Foundation 4840/tcp Crafted Packet xml external entity reference
CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
7.3 | $5k-$25k | 0.00 |
A vulnerability classified as critical has been found in Siemens SIMATIC Wincc Runtime up to 1.03.367 (SCADA Software). Affected is an unknown code of the file 4840/tcp of the component Foundation. The manipulation as part of a Crafted Packet leads to a xml external entity reference vulnerability. CWE is classifying the issue as CWE-611. The product processes an XML document that can contain XML entities with URIs that resolve to documents outside of the intended sphere of control, causing the product to embed incorrect documents into its output. This is going to have an impact on confidentiality, and availability. CVE summarizes:
An XXE vulnerability has been identified in OPC Foundation UA .NET Sample Code before 2017-03-21 and Local Discovery Server (LDS) before 1.03.367. Among the affected products are Siemens SIMATIC PCS7 (All versions V8.1 and earlier), SIMATIC WinCC (All versions < V7.4 SP1), SIMATIC WinCC Runtime Professional (All versions < V14 SP1), SIMATIC NET PC Software, and SIMATIC IT Production Suite. By sending specially crafted packets to the OPC Discovery Server at port 4840/tcp, an attacker might cause the system to access various resources chosen by the attacker.
The bug was discovered 08/31/2017. The weakness was shared 08/30/2017 (Website). The advisory is shared for download at opcfoundation-onlineapplications.org. This vulnerability is traded as CVE-2017-12069 since 07/31/2017. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. There are known technical details, but no exploit is available. The current price for an exploit might be approx. USD $5k-$25k (estimation calculated on 01/10/2021).
There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.
Product
Type
Vendor
Name
Version
License
CPE 2.3
CPE 2.2
CVSSv4
VulDB CVSS-B Score: 🔍VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 7.3VulDB Meta Temp Score: 7.3
VulDB Base Score: 6.5
VulDB Temp Score: 6.5
VulDB Vector: 🔍
VulDB Reliability: 🔍
NVD Base Score: 8.2
NVD Vector: 🔍
CVSSv2
AV | AC | Au | C | I | A |
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💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
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unlock | unlock | unlock | unlock | unlock | unlock |
unlock | unlock | unlock | unlock | unlock | unlock |
unlock | unlock | unlock | unlock | unlock | unlock |
VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
NVD Base Score: 🔍
Exploiting
Class: Xml external entity referenceCWE: CWE-611 / CWE-610
CAPEC: 🔍
ATT&CK: 🔍
Local: No
Remote: Yes
Availability: 🔍
Status: Not defined
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
0-Day | unlock | unlock | unlock | unlock |
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Today | unlock | unlock | unlock | unlock |
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: no mitigation knownStatus: 🔍
0-Day Time: 🔍
Timeline
07/31/2017 🔍08/30/2017 🔍
08/30/2017 🔍
08/31/2017 🔍
08/31/2017 🔍
08/31/2017 🔍
12/27/2022 🔍
Sources
Vendor: siemens.comAdvisory: ssa-535640
Researcher: Sergey Temnikov
Status: Not defined
Confirmation: 🔍
CVE: CVE-2017-12069 (🔍)
SecurityTracker: 1039510
SecurityFocus: 100559 - Multiple Siemens Products CVE-2017-12069 XML External Entity Injection Vulnerability
Entry
Created: 08/31/2017 09:16Updated: 12/27/2022 10:29
Changes: 08/31/2017 09:16 (60), 12/29/2019 20:52 (4), 01/10/2021 12:51 (3), 01/10/2021 12:55 (1), 12/27/2022 10:29 (1)
Complete: 🔍
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