Signature Bypass Affecting org.webjars.bowergithub.kjur:jsrsasign package, versions [0,]


Severity

Recommended
0.0
low
0
10

CVSS assessment made by Snyk's Security Team

    Threat Intelligence

    EPSS
    0.91% (84th percentile)

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  • Snyk ID SNYK-JAVA-ORGWEBJARSBOWERGITHUBKJUR-574708
  • published 22 Jun 2020
  • disclosed 22 Jun 2020
  • credit Antonio de la Piedra

How to fix?

There is no fixed version for org.webjars.bowergithub.kjur:jsrsasign.

Overview

org.webjars.bowergithub.kjur: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

version 3.1
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Snyk

Recommended
3.7 low
  • Attack Vector (AV)
    Network
  • Attack Complexity (AC)
    High
  • Privileges Required (PR)
    None
  • User Interaction (UI)
    None
  • Scope (S)
    Unchanged
  • Confidentiality (C)
    Low
  • Integrity (I)
    None
  • Availability (A)
    None
Expand this section

NVD

7.5 high