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Cryptographic API Misuse Vulnerability #4923

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lialon opened this issue Aug 7, 2024 · 0 comments
Open

Cryptographic API Misuse Vulnerability #4923

lialon opened this issue Aug 7, 2024 · 0 comments

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@lialon
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lialon commented Aug 7, 2024

Description:

In the "lemur/lemur/common/utils.py", I have identified a security vulnerability about insecure cryptographic padding. PKCS1v1.5 is vulnerable to the chosen-ciphertext attack.

Location:

https://github.com/Netflix/lemur/blob/master/lemur/common/utils.py#L281

padder = padding.PKCS1v15()

Reference

  • CWE-780: Use of RSA Algorithm without OAEP

Recommendations:

Try using other padding(OAEP) instead of PKCS1v1.5.

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