CVE-2019-15809
CVSS V2 Low 1.2
CVSS V3 Medium 4.7
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.
Overview
- CVE ID
- CVE-2019-15809
- Assigner
- cve@mitre.org
- Vulnerability Status
- Analyzed
- Published Version
- 2019-10-03T14:15:11
- Last Modified Date
- 2021-04-13T19:31:50
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| cpe:2.3:a:microchip:atmel_toolbox:00.03.11.05:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:o:athena-scs:idprotect:010b.0352.0005:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:o:athena-scs:idprotect:010e.1245.0002:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:o:athena-scs:idprotect:0106.0130.0401:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:o:cryptsoft:s\/a_idflex_v:010b.0352.0005:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:o:tecsec:armored_card:010e.0264.0001:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:o:tecsec:armored_card:108.0264.0001:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:o:thalesgroup:etoken_4300:010e.1245.0002:*:*:*:*:*:*:* | 1 | OR |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:L/AC:H/Au:N/C:P/I:N/A:N
- Access Vector
- LOCAL
- Access Compatibility
- HIGH
- Authentication
- NONE
- Confidentiality Impact
- PARTIAL
- Integrity Impact
- NONE
- Availability Impact
- NONE
- Base Score
- 1.2
- Severity
- LOW
- Exploitability Score
- 1.9
- Impact Score
- 2.9
CVSS Version 3
- Version
- 3.1
- Vector String
- CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
- Attack Vector
- LOCAL
- Attack Compatibility
- HIGH
- Privileges Required
- LOW
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality Impact
- HIGH
- Availability Impact
- NONE
- Base Score
- 4.7
- Base Severity
- MEDIUM
- Exploitability Score
- 1
- Impact Score
- 3.6
References
| Reference URL | Reference Tags |
|---|---|
| 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 |
| http://www.openwall.com/lists/oss-security/2019/10/02/2 | Mailing List Third Party Advisory |
| https://minerva.crocs.fi.muni.cz/ | Exploit 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 |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2019-15809 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-15809 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 07:15:55 | Added to TrackCVE | |||
| 2022-12-04 03:44:58 | 2019-10-03T14:15Z | 2019-10-03T14:15:11 | CVE Published Date | updated |
| 2022-12-04 03:44:58 | 2021-04-13T19:31:50 | CVE Modified Date | updated | |
| 2022-12-04 03:44:58 | Analyzed | Vulnerability Status | updated |