Medium severity · published Jul 9, 2024
CVE-2023-32737
A vulnerability has been identified in SIMATIC STEP 7 Safety V18 (All versions < V18 Update 2)
6.3
CVSS
0.2%
EPSS
No
On KEV
Description
A vulnerability has been identified in SIMATIC STEP 7 Safety V18 (All versions < V18 Update 2). Affected applications do not properly restrict the .NET BinaryFormatter when deserializing user-controllable input. This could allow an attacker to cause a type confusion and execute arbitrary code within the affected application.
This is the same issue that exists for .NET BinaryFormatter https://docs.microsoft.com/en-us/visualstudio/code-quality/ca2300.
CVSS vector
CVSS:3.1/AV:L/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:H
Attack vector
Local
Complexity
High
Privileges
High
User interaction
Required
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 7% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
SS
SIMATIC STEP 7 Safety V18 · Siemens
before V18 Update 2 · source: vendor
SS
Simatic Step 7 · Siemens
before 18 · source: CISA
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-32737
CVE.org
https://www.cve.org/CVERecord?id=CVE-2023-32737
cert-portal.siemens.com
https://cert-portal.siemens.com/productcert/html/ssa-313039.html
More from SIMATIC STEP 7 Safety V18
7.8
CVE-2024-49849
A vulnerability has been identified in SIMATIC S7-PLCSIM V16 (All versions), SIMATIC S7-PLCSIM V17 (All versions), SIMATIC STEP 7 Safety V16 (All versions), SIMATIC STEP 7 Safety…
7.3
CVE-2024-52051
A vulnerability has been identified in SIMATIC S7-PLCSIM V17 (All versions), SIMATIC S7-PLCSIM V18 (All versions), SIMATIC STEP 7 Safety V17 (All versions < V17 Update 9), SIMATIC…
7.3
CVE-2023-32736
A vulnerability has been identified in SIMATIC S7-PLCSIM V16 (All versions), SIMATIC S7-PLCSIM V17 (All versions), SIMATIC STEP 7 Safety V16 (All versions), SIMATIC STEP 7 Safety…
6.5
CVE-2023-32735
A vulnerability has been identified in SIMATIC STEP 7 Safety V16 (All versions < V16 Update 7), SIMATIC STEP 7 Safety V17 (All versions < V17 Update 7), SIMATIC STEP 7 Safety V18…