SSA-979834: Multiple vulnerabilities in Solid Edge
Publication Date:
2021-01-12
Last Update:
2021-01-15
Current Version:
V1.1
CVSS v3.1 Base Score:
7.8
SUMMARY
Solid Edge is affected by multiple vulnerabilities that could allow arbitrary code execution on an affected system. Siemens has released an update for Solid Edge and recommends to update to the latest version.
AFFECTED PRODUCTS AND SOLUTION
WORKAROUNDS AND MITIGATIONS
Siemens has identified the following specific workarounds and mitigations that customers can apply to reduce the risk:
Siemens recommends to limit opening of untrusted files from unknown sources in Solid Edge
Applying a Defense-in-Depth concept can help to reduce the probability that untrusted code is run on the system. Siemens recommends to apply the Defense-in-Depth concept: https://www.siemens.com/industrialsecurity
GENERAL SECURITY RECOMMENDATIONS
As a general security measure, Siemens strongly recommends to protect network access to devices with appropriate mechanisms. In order to operate the devices in a protected IT environment, Siemens recommends to configure the environment according to Siemens’ operational guidelines for Industrial Security (Download: https://www.siemens.com/cert/operational-guidelines-industrial-security ), and to follow the recommendations in the product manuals.
Additional information on Industrial Security by Siemens can be found at: https://www.siemens.com/industrialsecurity
PRODUCT DESCRIPTION
Solid Edge is a portfolio of software tools that addresses various product development processes : 3D design, simulation, manufacturing and design management.
VULNERABILITY CLASSIFICATION
The vulnerability classification has been performed by using the CVSS scoring system in version 3.1
(CVSS v3.1) (https://www.first.org/cvss ). The CVSS environmental score is specific to the customer’s
environment and will impact the overall CVSS score. The environmental score should therefore be
individually defined by the customer to accomplish final scoring.
An additional classification has been performed using the CWE classification, a community-developed
list of common software security weaknesses. This serves as a common language and as a baseline for
weakness identification, mitigation, and prevention efforts. A detailed list of CWE classes can be found
at: https://cwe.mitre.org/ .
Vulnerability CVE-2020-28381
Affected applications lack proper validation of user-supplied data when parsing PAR files. This could result in an out of bounds write into uninitialized memory. An attacker could leverage this vulnerability to execute code in the context of the current process.
CVSS v3.1 Base Score
7.8
CVSS Vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
CWE:
CWE-787: Out-of-bounds Write
Vulnerability CVE-2020-28382
Affected applications lack proper validation of user-supplied data when parsing PAR files. This could result in a out of bounds write past the end of an allocated structure. An attacker could leverage this vulnerability to execute code in the context of the current process.
CVSS v3.1 Base Score
7.8
CVSS Vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
CWE:
CWE-787: Out-of-bounds Write
Vulnerability CVE-2020-28383
Affected applications lack proper validation of user-supplied data when parsing PAR files. This can result in an out of bounds write past the memory location that is a read only image address. An attacker could leverage this vulnerability to execute code in the context of the current process.
CVSS v3.1 Base Score
7.8
CVSS Vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
CWE:
CWE-787: Out-of-bounds Write
Vulnerability CVE-2020-28384
Affected applications lack proper validation of user-supplied data when parsing PAR files. This could lead to a stack based buffer overflow. An attacker could leverage this vulnerability to execute code in the context of the current process.
CVSS v3.1 Base Score
7.8
CVSS Vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
CWE:
CWE-121: Stack-based Buffer Overflow
Vulnerability CVE-2020-28386
Affected applications lack proper validation of user-supplied data when parsing DFT files. This could result in an out of bounds write past the end of an allocated structure. An attacker could leverage this vulnerability to execute code in the context of the current process.
CVSS v3.1 Base Score
7.8
CVSS Vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
CWE:
CWE-787: Out-of-bounds Write
Vulnerability CVE-2020-26989
Affected applications lack proper validation of user-supplied data when parsing of PAR files. This could result in a stack based buffer overflow. An attacker could leverage this vulnerability to execute code in the context of the current process.
CVSS v3.1 Base Score
7.8
CVSS Vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
CWE:
CWE-121: Stack-based Buffer Overflow
ACKNOWLEDGMENTS
Siemens thanks the following parties for their efforts:
Trend Micro Zero Day Initiative
for coordinated disclosure
Industrial Control System Cyber Emergency Response Team (ICS-CERT)
for coordination efforts
ADDITIONAL INFORMATION
For further inquiries on security vulnerabilities in Siemens products and solutions, please contact
the Siemens ProductCERT:
https://www.siemens.com/cert/advisories
HISTORY DATA
V1.0 (2021-01-12): Publication Date
V1.1 (2021-01-15): Added additional fix version for SolidEdge SE2020
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