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Observable Discrepancy Affecting org.webjars.npm:jsrsasign package, versions [0,]

0.0
high

Snyk CVSS

    Attack Complexity High
    Scope Changed
    Confidentiality High

    Threat Intelligence

    Exploit Maturity Proof of concept
    EPSS 0.08% (35th percentile)
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NVD
5.9 medium

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  • Snyk ID SNYK-JAVA-ORGWEBJARSNPM-6070732
  • published 21 Jan 2024
  • disclosed 21 Nov 2023
  • credit Hubert Kario
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Introduced: 21 Nov 2023

CVE-2024-21484 Open this link in a new tab
CWE-203 Open this link in a new tab

How to fix?

There is no fixed version for org.webjars.npm:jsrsasign.

Overview

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

Affected versions of this package are vulnerable to Observable Discrepancy via the RSA PKCS#1.5 or RSAOAEP decryption process. An attacker can decrypt ciphertexts by exploiting the Marvin security flaw. Exploiting this vulnerability requires the attacker to have access to a large number of ciphertexts encrypted with the same key.

Workaround

The vulnerability can be mitigated by finding and replacing RSA and RSAOAEP decryption with another crypto library.