Signature Bypass Affecting org.webjars.npm:jsrsasign package, versions [,10.4.1)


Severity

Recommended
0.0
low
0
10

CVSS assessment made by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.91% (84th percentile)

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  • Snyk IDSNYK-JAVA-ORGWEBJARSNPM-574707
  • published22 Jun 2020
  • disclosed22 Jun 2020
  • creditAntonio de la Piedra

Introduced: 22 Jun 2020

CVE-2020-14966  (opens in a new tab)
CWE-639  (opens in a new tab)

How to fix?

Upgrade org.webjars.npm:jsrsasign to version 10.4.1 or higher.

Overview

org.webjars.npm:jsrsasign is a free pure JavaScript cryptographic library.

Affected versions of this package are vulnerable to Signature Bypass. It allows a malleability in ECDSA signatures by not checking overflows in the length of a sequence and '0' characters appended or prepended to an integer. The modified signatures are verified as valid. This could have a security-relevant impact if an application relied on a single canonical signature.

CVSS Scores

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