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High severity · published Oct 10, 2023
CVE-2023-36380
A vulnerability has been identified in CP-8031 MASTER MODULE (All versions < CPCI85 V05.11 (only with activated debug support)), CP-8050 MASTER MODULE (All versions < CPCI85…
7.8
CVSS
0.4%
EPSS
No
On KEV
Description
A vulnerability has been identified in CP-8031 MASTER MODULE (All versions < CPCI85 V05.11 (only with activated debug support)), CP-8050 MASTER MODULE (All versions < CPCI85 V05.11 (only with activated debug support)). The affected devices contain a hard-coded ID in the SSH `authorized_keys` configuration file. An attacker with knowledge of the corresponding private key could login to the device via SSH. Only devices with activated debug support are affected.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 35% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
CM
CP-8031 MASTER MODULE · Siemens
All versions < CPCI85 V05.11 (only with activated debug support) · source: vendor
CM
CP-8050 MASTER MODULE · Siemens
All versions < CPCI85 V05.11 (only with activated debug support) · source: vendor
CF
Cp-8031 Firmware · Siemens
before 05.11 · source: NVD
CF
Cp-8050 Firmware · Siemens
before 05.11 · source: NVD
Affected product
CM
CP-8031 MASTER MODULE
Siemens
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-36380
CVE.org
https://www.cve.org/CVERecord?id=CVE-2023-36380
Patch
https://cert-portal.siemens.com/productcert/pdf/ssa-134651.pdf
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