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Access Restriction Bypass Affecting rsa package, versions [0,4.1)

0.0
medium

Snyk CVSS

    Attack Complexity High

    Threat Intelligence

    EPSS 0.25% (65th percentile)
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NVD
7.5 high
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SUSE
7.5 high
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Red Hat
7.5 high

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  • Snyk ID SNYK-PYTHON-RSA-570831
  • published 2 Jun 2020
  • disclosed 2 Jun 2020
  • credit Unknown
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Introduced: 2 Jun 2020

CVE-2020-13757 Open this link in a new tab
CWE-284 Open this link in a new tab

How to fix?

Upgrade rsa to version 4.1 or higher.

Overview

rsa is a pure-Python RSA implementation.

Affected versions of this package are vulnerable to Access Restriction Bypass. It does not detect ciphertext modification during decryption (prepended "0" bytes) in PKCS1_v1_5.