CVE-2017-15361
mediumpriority · track · 37EPSS 0.098 · 96 %ileexploit · PoCEURUUSEPSS · scored 2026-10-27
The Infineon RSA library 1.02.013 in Infineon Trusted Platform Module (TPM) firmware, such as versions before 0000000000000422 - 4.34, before 000000000000062b - 6.43, and before 0000000000008521 - 133.33, mishandles RSA key generation, which makes it easier for attackers to defeat various cryptographic protection mechanisms via targeted attacks, aka ROCA. Examples of affected technologies include BitLocker with TPM 1.2, YubiKey 4 (before 4.3.5) PGP key generation, and the Cached User Data encryption feature in Chrome OS.
remediations
Vendor fix, mitigation, or workaround guidance, as published by each source.
A vendor fix is available.
- FixedSIMATIC Field-PG M5cisa_csaf_ot
Update BIOS to V22.01.04 https://support.industry.siemens.com/cs/ww/en/view/109738122
- FixedSIMATIC IPC227Ecisa_csaf_ot
Update BIOS to V20.01.10 https://support.industry.siemens.com/cs/ww/en/view/109481715
- FixedSIMATIC IPC277Ecisa_csaf_ot
Update BIOS to V20.01.10 https://support.industry.siemens.com/cs/ww/en/view/109481715
- FixedSIMATIC IPC427E (incl. SIPLUS variants)cisa_csaf_ot
Update BIOS to V21.01.07 https://support.industry.siemens.com/cs/ww/en/view/109742593
- FixedSIMATIC IPC477Ecisa_csaf_ot
Update BIOS to V21.01.07 https://support.industry.siemens.com/cs/ww/en/view/109742593
- FixedSIMATIC IPC547Gcisa_csaf_ot
Update BIOS to R1.21.0 https://support.industry.siemens.com/cs/ww/en/view/109750349
- FixedSIMATIC ITP1000cisa_csaf_ot
Update BIOS to V23.01.03 https://support.industry.siemens.com/cs/ww/en/view/109748173
- MitigationSIMATIC Field-PG M5cisa_csaf_ot
Only RSA key pairs generated by the TPM are affected by this vulnerability. Rekeying of the TPM by using other cryptograhpic algorithms (e.g. ECC), using 3936-bit RSA keys, or importing RSA keys to the TPM that are generated by other systems help mitigate the security vulnerability.
- MitigationSIMATIC IPC227Ecisa_csaf_ot
Only RSA key pairs generated by the TPM are affected by this vulnerability. Rekeying of the TPM by using other cryptograhpic algorithms (e.g. ECC), using 3936-bit RSA keys, or importing RSA keys to the TPM that are generated by other systems help mitigate the security vulnerability.
- MitigationSIMATIC IPC277Ecisa_csaf_ot
Only RSA key pairs generated by the TPM are affected by this vulnerability. Rekeying of the TPM by using other cryptograhpic algorithms (e.g. ECC), using 3936-bit RSA keys, or importing RSA keys to the TPM that are generated by other systems help mitigate the security vulnerability.
- MitigationSIMATIC IPC427E (incl. SIPLUS variants)cisa_csaf_ot
Only RSA key pairs generated by the TPM are affected by this vulnerability. Rekeying of the TPM by using other cryptograhpic algorithms (e.g. ECC), using 3936-bit RSA keys, or importing RSA keys to the TPM that are generated by other systems help mitigate the security vulnerability.
- MitigationSIMATIC IPC477Ecisa_csaf_ot
Only RSA key pairs generated by the TPM are affected by this vulnerability. Rekeying of the TPM by using other cryptograhpic algorithms (e.g. ECC), using 3936-bit RSA keys, or importing RSA keys to the TPM that are generated by other systems help mitigate the security vulnerability.
- MitigationSIMATIC IPC547Gcisa_csaf_ot
Only RSA key pairs generated by the TPM are affected by this vulnerability. Rekeying of the TPM by using other cryptograhpic algorithms (e.g. ECC), using 3936-bit RSA keys, or importing RSA keys to the TPM that are generated by other systems help mitigate the security vulnerability.
- MitigationSIMATIC ITP1000cisa_csaf_ot
Only RSA key pairs generated by the TPM are affected by this vulnerability. Rekeying of the TPM by using other cryptograhpic algorithms (e.g. ECC), using 3936-bit RSA keys, or importing RSA keys to the TPM that are generated by other systems help mitigate the security vulnerability.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode
weaknesses
The CWE weakness classes this flaw belongs to.
exploits (3)
Public proof-of-concept and weaponised exploit code.
affected products (36)
Products and version ranges known to be affected.
advisories (1)
Vendor and ecosystem advisories describing this.
- ICSA-18-058-01ASiemens SIMATIC Industrial PCs (Update A)2018-02-22icsa · cisa_csaf_otUS
As a general security measure, Siemens strongly recommends to protect network access to devices with appropriate mechanisms. In order to operate the devices in a protected IT environment, Siemens recommends to configure the environment according to Siemens' operational guidelines for Industrial Security (Download: https://www.siemens.com/cert/operational-guidelines-industrial-security), and to follow the recommendations in the product manuals.
also known as (4)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (66)
External citations — patches, advisories, analysis.
- http://support.lenovo.com/us/en/product_security/LEN-15552cnnvd
- https://arstechnica.com/information-technology/2017/10/crypto-failure-cripples-millions-of-high-security-keys-750k-estonian-ids/cnnvd
- https://blog.cr.yp.to/20171105-infineon.htmlcnnvd
- https://cert-portal.siemens.com/productcert/pdf/ssa-470231.pdfcnnvd
- https://crocs.fi.muni.cz/public/papers/rsa_ccs17cnnvd
- https://dan.enigmabridge.com/roca-vulnerability-impact-on-gemalto-idprime-net-smart-cards/cnnvd
- https://github.com/crocs-muni/rocacnnvd
- https://github.com/iadgov/Detect-CVE-2017-15361-TPMcnnvd
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