Siemens SIMATIC Step 7 up to 15.x Password Hash information disclosure
CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
4.9 | $0-$5k | 0.00 |
A vulnerability was found in Siemens SIMATIC Step 7 up to 15.x (SCADA Software). It has been declared as critical. Affected by this vulnerability is an unknown functionality of the component Password Hash. The manipulation with an unknown input leads to a information disclosure vulnerability. The CWE definition for the vulnerability is CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:
A vulnerability has been identified in SIMATIC STEP 7 (TIA Portal) (All Versions < V15.1). Password hashes with insufficient computational effort could allow an attacker to access to a project file and reconstruct passwords. The vulnerability could be exploited by an attacker with local access to the project file. No user interaction is required to exploit the vulnerability. The vulnerability could allow the attacker to obtain certain passwords from the project. At the time of advisory publication no public exploitation of this vulnerability was known.
The bug was discovered 11/13/2018. The weakness was presented 12/13/2018 (Website). The advisory is shared at cert-portal.siemens.com. This vulnerability is known as CVE-2018-13811 since 07/10/2018. The exploitation appears to be difficult. An attack has to be approached locally. The exploitation doesn't need any form of authentication. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1592 for this issue.
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 $0-$5k.
Upgrading to version 15.1 eliminates this vulnerability.
See VDB-101525, VDB-108257, VDB-109954 and VDB-111694 for similar entries.
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: 5.0VulDB Meta Temp Score: 4.9
VulDB Base Score: 4.5
VulDB Temp Score: 4.3
VulDB Vector: 🔍
VulDB Reliability: 🔍
NVD Base Score: 5.5
NVD Vector: 🔍
CVSSv2
AV | AC | Au | C | I | A |
---|---|---|---|---|---|
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
---|---|---|---|---|---|
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: Information disclosureCWE: CWE-200 / CWE-284 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍
Local: Yes
Remote: No
Availability: 🔍
Status: Not defined
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
0-Day | unlock | unlock | unlock | unlock |
---|---|---|---|---|
Today | unlock | unlock | unlock | unlock |
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
0-Day Time: 🔍
Upgrade: SIMATIC Step 7 15.1
Timeline
07/10/2018 🔍11/13/2018 🔍
11/13/2018 🔍
12/13/2018 🔍
12/13/2018 🔍
12/14/2018 🔍
06/18/2023 🔍
Sources
Vendor: siemens.comAdvisory: ssa-621493
Status: Not defined
Confirmation: 🔍
CVE: CVE-2018-13811 (🔍)
SecurityFocus: 105926 - Siemens SIMATIC STEP 7 TIA Portal CVE-2018-13811 Weak Password Security Vulnerability
See also: 🔍
Entry
Created: 12/14/2018 07:38Updated: 06/18/2023 17:14
Changes: 12/14/2018 07:38 (62), 04/20/2020 18:02 (4), 06/18/2023 17:14 (4)
Complete: 🔍
Cache ID: 18:477:103
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