Information Exposure Affecting pycrypto package, versions [0,]


Severity

Recommended
0.0
high
0
10

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

Threat Intelligence

Exploit Maturity
Proof of concept
EPSS
0.33% (72nd percentile)

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  • Snyk IDSNYK-PYTHON-PYCRYPTO-42047
  • published6 Feb 2018
  • disclosed3 Feb 2018
  • creditWeikeng Chen, TElgamal

Introduced: 3 Feb 2018

CVE-2018-6594  (opens in a new tab)
CWE-200  (opens in a new tab)

How to fix?

There is no fixed version for pycrypto.

Overview

pycrypto is a collection of both secure hash functions (such as SHA256 and RIPEMD160), and various encryption algorithms (AES, DES, RSA, ElGamal, etc.).

Affected versions of this package are vulnerable to Insecure Encryption, which can lead to Information Exposure.

It generates weak ElGamal key parameters, which allows attackers to obtain sensitive information by reading ciphertext data (i.e., it does not have semantic security in face of a ciphertext-only attack). The Decisional Diffie-Hellman (DDH) assumption does not hold for PyCrypto's ElGamal implementation.

References

CVSS Scores

version 3.1