Vulnerability Note VU#659615

Oberthur smart cards generate weak certificates

Original Release date: 09 Nov 2012 | Last revised: 09 Nov 2012

Overview

A flaw has been identified in Oberthur ID-One COSMO 64, v5.2 and v5.2a smart cards, which results in public keys that do not satisfy the requirements of the Digital Signature Standard (as specified in FIPS PUB 186-3 and its predecessors).

Description

Oberthur ID-One COSMO 64, v5.2 and v5.2a smart cards contain a flaw, which results in public keys that do not satisfy the requirements of the Digital Signature Standard (as specified in FIPS PUB 186-3 [PDF] and its predecessors).

Impact

An attacker may be able to adversely affect the integrity of the smart card identity.

Solution

Replace the smart card

Organizations should contact Oberthur Technologies through their regular support channels to determine if their smart cards are affected and to receive replacements.

Vendor Information (Learn More)

VendorStatusDate NotifiedDate Updated
OberthurAffected-09 Nov 2012
If you are a vendor and your product is affected, let us know.

CVSS Metrics (Learn More)

Group Score Vector
Base 4.0 AV:L/AC:H/Au:N/C:N/I:C/A:N
Temporal 3.1 E:POC/RL:OF/RC:C
Environmental 2.3 CDP:ND/TD:M/CR:ND/IR:ND/AR:ND

References

Credit

Thanks to NSA IAD for reporting this vulnerability.

This document was written by Jared Allar.

Other Information

  • CVE IDs: Unknown
  • Date Public: 09 Nov 2012
  • Date First Published: 09 Nov 2012
  • Date Last Updated: 09 Nov 2012
  • Document Revision: 21

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