Timing Attack

Affecting jsrsasign package, versions <8.0.13

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Overview

jsrsasign is a free pure JavaScript cryptographic library.

Affected versions of this package are vulnerable to Timing Attack. Practical recovery of the long-term private key generated by the library is possible under certain conditions. Leakage of a bit-length of the scalar during scalar multiplication is possible on an elliptic curve which might allow practical recovery of the long-term private key.

Remediation

Upgrade jsrsasign to version 8.0.13 or higher.

References

CVSS Score

5.9
medium severity
  • Attack Vector
    Adjacent
  • Attack Complexity
    High
  • Privileges Required
    None
  • User Interaction
    None
  • Scope
    Unchanged
  • Confidentiality
    Low
  • Integrity
    High
  • Availability
    None
CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:N
Credit
Centre for Research on Cryptography and Security
CWE
CWE-362
Snyk ID
SNYK-JS-JSRSASIGN-561755
Disclosed
03 Oct, 2019
Published
31 Mar, 2020