CVE-2020-15787
SIMATIC HMI Unified Comfort Panels Authentication Truncation Vulnerability
Description
A vulnerability has been identified in SIMATIC HMI Unified Comfort Panels (All versions <= V16). Affected devices insufficiently validate authentication attempts as the information given can be truncated to match only a set number of characters versus the whole provided string. This could allow a remote attacker to discover user passwords and obtain access to the Sm@rt Server via a brute-force attack.
INFO
Published Date :
Sept. 9, 2020, 7:15 p.m.
Last Modified :
June 8, 2021, 8:15 p.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
5.9
Exploitability Score :
3.9
Public PoC/Exploit Available at Github
CVE-2020-15787 has a 1 public PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
Affected Products
The following products are affected by CVE-2020-15787
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2020-15787.
| URL | Resource |
|---|---|
| https://cert-portal.siemens.com/productcert/pdf/ssa-542525.pdf | Vendor Advisory |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
CVE Data Analysis, CVE Monitor, CVE EXP Prediction Based on Deep Learning. 1999-2020年存量CVE数据分析、监控CVE增量更新、基于深度学习的CVE EXP预测和自动化推送
Python
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2020-15787 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2020-15787 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
CVE Modified by [email protected]
Jun. 08, 2021
Action Type Old Value New Value Changed Description A vulnerability has been identified in SIMATIC HMI Unified Comfort Panels (All versions). Affected devices insufficiently validate authentication attempts as the information given can be truncated to match only a set number of characters versus the whole provided string. This could allow a remote attacker to discover user passwords and obtain access to the Sm@rt Server via a brute-force attack. A vulnerability has been identified in SIMATIC HMI Unified Comfort Panels (All versions <= V16). Affected devices insufficiently validate authentication attempts as the information given can be truncated to match only a set number of characters versus the whole provided string. This could allow a remote attacker to discover user passwords and obtain access to the Sm@rt Server via a brute-force attack. -
CVE Modified by [email protected]
Dec. 14, 2020
Action Type Old Value New Value Changed Description A vulnerability has been identified in SIMATIC HMI Unified Comfort Panels (All versions). Affected devices insufficiently validate authentication attempts as the information given can be truncated to match only a set number of characters versus the whole provided string. This could allow a remote attacker to discover user passwords and obtain access to the Sm@rt Server via a brute-force attack. A vulnerability has been identified in SIMATIC HMI Unified Comfort Panels (All versions). Affected devices insufficiently validate authentication attempts as the information given can be truncated to match only a set number of characters versus the whole provided string. This could allow a remote attacker to discover user passwords and obtain access to the Sm@rt Server via a brute-force attack. -
CVE Modified by [email protected]
Dec. 14, 2020
Action Type Old Value New Value Changed Description A vulnerability has been identified in SIMATIC HMI United Comfort Panels (All versions). Affected devices insufficiently validate authentication attempts as the information given can be truncated to match only a set number of characters versus the whole provided string. This could allow a remote attacker to discover user passwords and obtain access to the Sm@rt Server via a brute-force attack. A vulnerability has been identified in SIMATIC HMI Unified Comfort Panels (All versions). Affected devices insufficiently validate authentication attempts as the information given can be truncated to match only a set number of characters versus the whole provided string. This could allow a remote attacker to discover user passwords and obtain access to the Sm@rt Server via a brute-force attack. -
Reanalysis by [email protected]
Sep. 17, 2020
Action Type Old Value New Value Removed CVSS V2 NIST (AV:N/AC:L/Au:N/C:P/I:P/A:P) Added CVSS V2 NIST (AV:N/AC:L/Au:N/C:P/I:N/A:N) -
Initial Analysis by [email protected]
Sep. 14, 2020
Action Type Old Value New Value Added CVSS V2 NIST (AV:N/AC:L/Au:N/C:P/I:P/A:P) Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Changed Reference Type https://cert-portal.siemens.com/productcert/pdf/ssa-542525.pdf No Types Assigned https://cert-portal.siemens.com/productcert/pdf/ssa-542525.pdf Vendor Advisory Added CWE NIST CWE-287 Added CPE Configuration AND OR *cpe:2.3:o:siemens:simatic_hmi_united_comfort_panels_firmware:*:*:*:*:*:*:*:* OR cpe:2.3:h:siemens:simatic_hmi_united_comfort_panels:-:*:*:*:*:*:*:*
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2020-15787 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2020-15787
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
1.60 }} 0.42%
score
0.87751
percentile