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High severity · published Nov 18, 2016
CVE-2016-8562
Siemens SIMATIC CP 1543-1 Improper Privilege Management Vulnerability
In wildKEV
7.5
CVSS
3.6%
EPSS
Yes
On KEV
Description
A vulnerability has been identified in SIMATIC CP 1543-1 (All versions < V2.0.28), SIPLUS NET CP 1543-1 (All versions < V2.0.28). Under special conditions it was possible to write SNMP variables on port 161/udp which should be read-only and should only be configured with TIA-Portal. A write to these variables could reduce the availability or cause a denial-of-service.
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
High
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)3.6% · higher than 89% of CVEs
Exploited in the wildYes
CISA KEVListed Mar 3, 2022
Federal remediation dueMar 24, 2022
Ransomware campaign useNot known
Affected products
Which versions
SC
Simatic CP 1543-1 Firmware · Siemens
before 2.0.28 · source: NVD
SN
Siplus Net CP 1543-1 Firmware · Siemens
before 2.0.28 · source: NVD
SC
SIMATIC CP · Siemens
All versions, or not specified · source: KEV
Affected product
SC
Simatic CP 1543-1 Firmware
Siemens
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2016-8562
CVE.org
https://www.cve.org/CVERecord?id=CVE-2016-8562
CISA KEV catalogue
https://www.cisa.gov/known-exploited-vulnerabilities-catalog
vdb-entry
http://www.securityfocus.com/bid/94436
x_refsource_MISC
https://ics-cert.us-cert.gov/advisories/ICSA-16-327-01
x_refsource_CONFIRM
http://www.siemens.com/cert/pool/cert/siemens_security_advisory_ssa-672373.pdf
x_refsource_CONFIRM
https://cert-portal.siemens.com/productcert/pdf/ssa-672373.pdf
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