CVE-2022-38773
No known exploitation. EPSS puts it in the 19th percentile. A vendor fix is available.
What to do
The vendor has published a fix. Version details are below where the sources state them.
What it is
From the CVE record
Affected devices do not contain an Immutable Root of Trust in Hardware. With this the integrity of the code executed on the device can not be validated during load-time. An attacker with physical access to the device could use this to replace the boot image of the device and execute arbitrary code.
In plain language
No plain-language summary for this CVE yet.
Exploitation
Where each signal puts this CVE on the scale from published to confirmed exploited.
- CISA KEV
Not in the catalog. CISA has not confirmed exploitation.
- Public exploits
No public exploit or proof of concept found in the sources we track.
- EPSS
0.3% chance of exploitation activity in the next 30 days, which ranks it in the 19th percentile of scored CVEs.
Exploit Prediction Scoring System, FIRST.org. A probability, not a confirmation.
Lifecycle
5 events over 1262 days, from the signal feeds we watch.
- OpenVAS check added
- Patch availablerecord updated
- Publishedweakness classified
Affected products
- SIMATIC Drive Controller CPU 1504D TFICS / OT / IoT
- SIMATIC Drive Controller CPU 1507D TFICS / OT / IoT
- SIMATIC S7-1500 CPU 1510SP F-1 PNICS / OT / IoT
- SIMATIC S7-1500 CPU 1510SP-1 PNICS / OT / IoT
- SIMATIC S7-1500 CPU 1511-1 PNICS / OT / IoT
- SIMATIC S7-1500 CPU 1511C-1 PNICS / OT / IoT
- SIMATIC S7-1500 CPU 1511F-1 PNICS / OT / IoT
- SIMATIC S7-1500 CPU 1511T-1 PNICS / OT / IoT
And 199 more affected products. See all after sign-in
Technical detail
CVSS 3.1 vector
Open in the CVSS calculatorCVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Scored 4.6 by NVD.
How it is reached
- Attack Vector PhysicalRequires physical access to the device
- Attack Complexity LowNo special conditions — the attack can be reliably reproduced
- Privileges Required NoneNo authentication required — anyone can exploit this
- User Interaction NoneNo user interaction needed — fully automated exploitation
Scope
- Scope UnchangedImpact is limited to the vulnerable component itself
Impact if exploited
- Confidentiality NoneNo confidentiality impact
- Integrity HighTotal loss of integrity — attacker can modify any data in the component
- Availability NoneNo availability impact
Weaknesses
Sources
References in the record
- cert-portal.siemens.com/productcert/pdf/ssa-482757.pdf
- cert-portal.siemens.com/productcert/html/ssa-482757.html
- cert-portal.siemens.com/productcert/csaf/ssa-482757.json
And 8 more references. See all after sign-in
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