SIMATIC STEP 7 BinaryFormatter Type Confusion (v<Update 7)
CVE-2023-32735 Published on July 9, 2024

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 (All versions < V18 Update 2), SIMATIC STEP 7 V16 (All versions < V16 Update 7), SIMATIC STEP 7 V17 (All versions < V17 Update 7), SIMATIC STEP 7 V18 (All versions < V18 Update 2), SIMATIC WinCC Unified V16 (All versions < V16 Update 7), SIMATIC WinCC Unified V17 (All versions < V17 Update 7), SIMATIC WinCC Unified V18 (All versions < V18 Update 2), SIMATIC WinCC V16 (All versions < V16.7), SIMATIC WinCC V17 (All versions < V17.7), SIMATIC WinCC V18 (All versions < V18 Update 2), SIMOCODE ES V16 (All versions < V16 Update 7), SIMOCODE ES V17 (All versions < V17 Update 7), SIMOCODE ES V18 (All versions < V18 Update 2), SIMOTION SCOUT TIA V5.4 SP1 (All versions), SIMOTION SCOUT TIA V5.4 SP3 (All versions), SIMOTION SCOUT TIA V5.5 SP1 (All versions), SINAMICS Startdrive V16 (All versions), SINAMICS Startdrive V17 (All versions), SINAMICS Startdrive V18 (All versions), SIRIUS Safety ES V17 (All versions < V17 Update 7), SIRIUS Safety ES V18 (All versions < V18 Update 2), SIRIUS Soft Starter ES V17 (All versions < V17 Update 7), SIRIUS Soft Starter ES V18 (All versions < V18 Update 2), Soft Starter ES V16 (All versions < V16 Update 7), TIA Portal Cloud V3.0 (All versions < V18 Update 2). Affected applications do not properly restrict the .NET BinaryFormatter when deserializing hardware configuration profiles. 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.

NVD

Weakness Type

What is a Marshaling, Unmarshaling Vulnerability?

The application deserializes untrusted data without sufficiently verifying that the resulting data will be valid.

CVE-2023-32735 has been classified to as a Marshaling, Unmarshaling vulnerability or weakness.

Products Associated with CVE-2023-32735

You can be notified by email with stack.watch whenever vulnerabilities like CVE-2023-32735 are published in Siemens Simatic Step 7:

Siemens Simatic Step 7

Affected Versions

Siemens SIMATIC STEP 7 Safety V16:

Before V16 Update 7 is affected.

Siemens SIMATIC STEP 7 Safety V17:

Before V17 Update 7 is affected.

Siemens SIMATIC STEP 7 Safety V18:

Before V18 Update 2 is affected.

Siemens SIMATIC STEP 7 V16:

Before V16 Update 7 is affected.

Siemens SIMATIC STEP 7 V17:

Before V17 Update 7 is affected.

Siemens SIMATIC STEP 7 V18:

Before V18 Update 2 is affected.

Siemens SIMATIC WinCC Unified V16:

Before V16 Update 7 is affected.

Siemens SIMATIC WinCC Unified V17:

Before V17 Update 7 is affected.

Siemens SIMATIC WinCC Unified V18:

Before V18 Update 2 is affected.

Siemens SIMATIC WinCC V16:

Before V16.7 is affected.

Siemens SIMATIC WinCC V17:

Before V17.7 is affected.

Siemens SIMATIC WinCC V18:

Before V18 Update 2 is affected.

Siemens SIMOCODE ES V16:

Before V16 Update 7 is affected.

Siemens SIMOCODE ES V17:

Before V17 Update 7 is affected.

Siemens SIMOCODE ES V18:

Before V18 Update 2 is affected.

Siemens SIMOTION SCOUT TIA V5.4 SP1:

Before * is affected.

Siemens SIMOTION SCOUT TIA V5.4 SP3:

Before * is affected.

Siemens SIMOTION SCOUT TIA V5.5 SP1:

Before * is affected.

Siemens SINAMICS Startdrive V16:

Before * is affected.

Siemens SINAMICS Startdrive V17:

Before * is affected.

Siemens SINAMICS Startdrive V18:

Before * is affected.

Siemens SIRIUS Safety ES V17:

Before V17 Update 7 is affected.

Siemens SIRIUS Safety ES V18:

Before V18 Update 2 is affected.

Siemens SIRIUS Soft Starter ES V17:

Before V17 Update 7 is affected.

Siemens SIRIUS Soft Starter ES V18:

Before V18 Update 2 is affected.

Siemens Soft Starter ES V16:

Before V16 Update 7 is affected.

Siemens TIA Portal Cloud V3.0:

Before V18 Update 2 is affected.

siemens simatic_step_7_safety:

Before v16update7 is affected.
Before v17update7 is affected.
Before v18update2 is affected.

siemens simatic_step_7_safety:

Before v16update7 is affected.
Before v17update7 is affected.
Before v18update2 is affected.

siemens simatic_step_7_safety:

Before v16update7 is affected.
Before v17update7 is affected.
Before v18update2 is affected.

siemens simatic_step_7:

Before v16update7 is affected.
Before v17update7 is affected.
Before v18update2 is affected.

siemens simatic_step_7:

Before v16update7 is affected.
Before v17update7 is affected.
Before v18update2 is affected.

siemens simatic_step_7:

Before v16update7 is affected.
Before v17update7 is affected.
Before v18update2 is affected.

siemens simatic_wincc_unified:

Before v16update7 is affected.
Before v17update7 is affected.
Before v18update2 is affected.

siemens simatic_wincc_unified:

Before v16update7 is affected.
Before v17update7 is affected.
Before v18update2 is affected.

siemens simatic_wincc_unified:

Before v16update7 is affected.
Before v17update7 is affected.
Before v18update2 is affected.

siemens simatic_wincc:

Before v17.7 is affected.
Before v18update2 is affected.

siemens simatic_wincc:

Before v17.7 is affected.
Before v18update2 is affected.

siemens simocode_es:

Before v16update7 is affected.
Before v17update7 is affected.
Before v18update2 is affected.

siemens simocode_es:

Before v16update7 is affected.
Before v17update7 is affected.
Before v18update2 is affected.

siemens simocode_es:

Before v16update7 is affected.
Before v17update7 is affected.
Before v18update2 is affected.

siemens simotion_scout_tia:

Version v5.4sp1 is affected.

siemens simotion_scout_tia:

Version v5.4sp3 is affected.

siemens simotion_scout_tia:

Version v5.5sp1 is affected.

siemens sinamics_startdrive:

Version v17 is affected.

siemens sinamics_startdrive:

Version v18 is affected.

siemens sirius_safety_es:

Before v17update7 is affected.
Before v18update2 is affected.

siemens sirius_safety_es:

Before v17update7 is affected.
Before v18update2 is affected.

siemens sirius_soft_starter_es:

Before v17update7 is affected.
Before v18update2 is affected.

siemens sirius_soft_starter_es:

Before v17update7 is affected.
Before v18update2 is affected.

siemens soft_starter_es:

Before v16update7 is affected.

siemens tia_portal_cloud_v3.0:

Before v18update2 is affected.

Exploit Probability

EPSS

0.06%

Percentile

17.90%

EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.

SIMATIC STEP 7 BinaryFormatter Type Confusion (v<Update 7)CVE-2023-32735 Published on July 9, 2024

Weakness Type

What is a Marshaling, Unmarshaling Vulnerability?

Products Associated with CVE-2023-32735

Affected Versions

Exploit Probability

SIMATIC STEP 7 BinaryFormatter Type Confusion (v<Update 7)
CVE-2023-32735 Published on July 9, 2024