CVE-2019-15809

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.
Configurations

Configuration 1 (hide)

cpe:2.3:a:microchip:atmel_toolbox:00.03.11.05:*:*:*:*:*:*:*

Configuration 2 (hide)

OR cpe:2.3:o:athena-scs:idprotect:010b.0352.0005:*:*:*:*:*:*:*
cpe:2.3:o:athena-scs:idprotect:010e.1245.0002:*:*:*:*:*:*:*
cpe:2.3:o:athena-scs:idprotect:0106.0130.0401:*:*:*:*:*:*:*
cpe:2.3:o:cryptsoft:s\/a_idflex_v:010b.0352.0005:*:*:*:*:*:*:*
cpe:2.3:o:tecsec:armored_card:010e.0264.0001:*:*:*:*:*:*:*
cpe:2.3:o:tecsec:armored_card:108.0264.0001:*:*:*:*:*:*:*
cpe:2.3:o:thalesgroup:etoken_4300:010e.1245.0002:*:*:*:*:*:*:*

History

21 Nov 2024, 04:29

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

Information

Published : 2019-10-03 14:15

Updated : 2024-11-21 04:29


NVD link : CVE-2019-15809

Mitre link : CVE-2019-15809

CVE.ORG link : CVE-2019-15809


JSON object : View

Products Affected

cryptsoft

  • s\/a_idflex_v

microchip

  • atmel_toolbox

thalesgroup

  • etoken_4300

tecsec

  • armored_card

athena-scs

  • idprotect
CWE
CWE-203

Observable Discrepancy