National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2019-15809 Detail

Current Description

Smart cards from the Athena SCS manufacturer, based on the Atmel Toolbox 00.03.11.05 and the AT90SC chip, contain a timing side channel in ECDSA signature generation. This allows a local attacker, able to measure the duration of hundreds to thousands of signing operations, to compute the private key used. The issue occurs because the Atmel Toolbox 00.03.11.05 contains two versions of ECDSA signature functions, described as fast and secure, but the affected cards chose to use the fast version, which leaks the bit length of the random nonce via timing. This affects Athena IDProtect 010b.0352.0005, Athena IDProtect 010e.1245.0002, Athena IDProtect 0106.0130.0401, Athena IDProtect 010e.1245.0002, Valid S/A IDflex V 010b.0352.0005, SafeNet eToken 4300 010e.1245.0002, TecSec Armored Card 010e.0264.0001, and TecSec Armored Card 108.0264.0001.

Source:  MITRE
View Analysis Description

Severity



CVSS 3.x Severity and Metrics:

NIST CVSS score
NIST: NVD
Base Score: 4.7 MEDIUM
Vector:  CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://www.openwall.com/lists/oss-security/2019/10/02/2 Mailing List Third Party Advisory
https://csrc.nist.gov/Projects/Cryptographic-Algorithm-Validation-Program/details?source=ECDSA&number=214 Third Party Advisory US Government Resource
https://eprint.iacr.org/2011/232.pdf Technical Description Third Party Advisory
https://minerva.crocs.fi.muni.cz/ Exploit Third Party Advisory
https://tches.iacr.org/index.php/TCHES/article/view/7337 Technical Description Third Party Advisory
https://www.ssi.gouv.fr/certification_cc/bibliotheque-cryptographique-atmel-toolbox-00-03-11-05/ Product

Weakness Enumeration

CWE-ID CWE Name Source
CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') NIST  

Known Affected Software Configurations Switch to CPE 2.2

Configuration 1 ( hide )
 cpe:2.3:a:microchip:toolbox:00.03.11.05:*:*:*:*:*:*:*
     Show Matching CPE(s)

Configuration 2 ( hide )
 cpe:2.3:o:athena-scs:idprotect:010b.0352.0005:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:athena-scs:idprotect:010e.1245.0002:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:athena-scs:idprotect:0106.0130.0401:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:cryptsoft:s\/a_idflex_v:010b.0352.0005:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:tecsec:armored_card:010e.0264.0001:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:tecsec:armored_card:108.0264.0001:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:thalesgroup:etoken_4300:010e.1245.0002:*:*:*:*:*:*:*
     Show Matching CPE(s)


Change History

1 change record found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2019-15809
NVD Published Date:
10/03/2019
NVD Last Modified:
11/05/2019