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


Severity

Recommended
0.0
medium
0
10

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

Threat Intelligence

EPSS
0.22% (60th percentile)

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  • Snyk IDSNYK-PYTHON-RSA-570831
  • published2 Jun 2020
  • disclosed2 Jun 2020
  • creditUnknown

Introduced: 2 Jun 2020

CVE-2020-13757  (opens in a new tab)
CWE-284  (opens 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.

CVSS Scores

version 3.1