Input validation error in Siemens products - CVE-2021-41769
Published: January 18, 2022
Vulnerability identifier: #VU59673
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2021-41769
CWE-ID: CWE-20
Exploitation vector: Adjecent network
Exploit availability:
No public exploit available
Vendor: Siemens
Affected software:
SIPROTEC 5 6MD85 devices (CPU variant CP300)
SIPROTEC 5 6MD89 devices (CPU variant CP300)
SIPROTEC 5 6MU85 devices (CPU variant CP300)
SIPROTEC 5 7KE85 devices (CPU variant CP300)
SIPROTEC 5 7SA82 devices (CPU variant CP100)
SIPROTEC 5 7SA86 devices (CPU variant CP300)
SIPROTEC 5 7SA87 devices (CPU variant CP300)
SIPROTEC 5 7SD82 devices (CPU variant CP100)
SIPROTEC 5 7SD86 devices (CPU variant CP300)
SIPROTEC 5 7SD87 devices (CPU variant CP300)
SIPROTEC 5 7SJ81 devices (CPU variant CP100)
SIPROTEC 5 7SJ82 devices (CPU variant CP100)
SIPROTEC 5 7SJ85 devices (CPU variant CP300)
SIPROTEC 5 7SJ86 devices (CPU variant CP300)
SIPROTEC 5 7SK82 devices (CPU variant CP100)
SIPROTEC 5 7SK85 devices (CPU variant CP300)
SIPROTEC 5 7SL82 devices (CPU variant CP100)
SIPROTEC 5 7SL86 devices (CPU variant CP300)
SIPROTEC 5 7SL87 devices (CPU variant CP300)
SIPROTEC 5 7SS85 devices (CPU variant CP300)
SIPROTEC 5 7ST85 devices (CPU variant CP300)
SIPROTEC 5 7SX85 devices (CPU variant CP300)
SIPROTEC 5 7UM85 devices (CPU variant CP300)
SIPROTEC 5 7UT82 devices (CPU variant CP100)
SIPROTEC 5 7UT85 devices (CPU variant CP300)
SIPROTEC 5 7UT86 devices (CPU variant CP300)
SIPROTEC 5 7UT87 devices (CPU variant CP300)
SIPROTEC 5 7VE85 devices (CPU variant CP300)
SIPROTEC 5 7VK87 devices (CPU variant CP300)
SIPROTEC 5 Compact 7SX800 devices (CPU variant CP050)
SIPROTEC 5 6MD85 devices (CPU variant CP300)
SIPROTEC 5 6MD89 devices (CPU variant CP300)
SIPROTEC 5 6MU85 devices (CPU variant CP300)
SIPROTEC 5 7KE85 devices (CPU variant CP300)
SIPROTEC 5 7SA82 devices (CPU variant CP100)
SIPROTEC 5 7SA86 devices (CPU variant CP300)
SIPROTEC 5 7SA87 devices (CPU variant CP300)
SIPROTEC 5 7SD82 devices (CPU variant CP100)
SIPROTEC 5 7SD86 devices (CPU variant CP300)
SIPROTEC 5 7SD87 devices (CPU variant CP300)
SIPROTEC 5 7SJ81 devices (CPU variant CP100)
SIPROTEC 5 7SJ82 devices (CPU variant CP100)
SIPROTEC 5 7SJ85 devices (CPU variant CP300)
SIPROTEC 5 7SJ86 devices (CPU variant CP300)
SIPROTEC 5 7SK82 devices (CPU variant CP100)
SIPROTEC 5 7SK85 devices (CPU variant CP300)
SIPROTEC 5 7SL82 devices (CPU variant CP100)
SIPROTEC 5 7SL86 devices (CPU variant CP300)
SIPROTEC 5 7SL87 devices (CPU variant CP300)
SIPROTEC 5 7SS85 devices (CPU variant CP300)
SIPROTEC 5 7ST85 devices (CPU variant CP300)
SIPROTEC 5 7SX85 devices (CPU variant CP300)
SIPROTEC 5 7UM85 devices (CPU variant CP300)
SIPROTEC 5 7UT82 devices (CPU variant CP100)
SIPROTEC 5 7UT85 devices (CPU variant CP300)
SIPROTEC 5 7UT86 devices (CPU variant CP300)
SIPROTEC 5 7UT87 devices (CPU variant CP300)
SIPROTEC 5 7VE85 devices (CPU variant CP300)
SIPROTEC 5 7VK87 devices (CPU variant CP300)
SIPROTEC 5 Compact 7SX800 devices (CPU variant CP050)
Detailed vulnerability description
The vulnerability allows a remote attacker to gain access to potentially sensitive information.
The vulnerability exists due to insufficient validation of user-supplied input in the web server. A remote attacker on the local network can pass specially crafted input to the application and gain unauthorized access to sensitive information on the system.
How to mitigate CVE-2021-41769
Install updates from vendor's website.