Medium

asymmetricrypt/asymmetricrypt Padding Oracle Vulnerability in RSA Encryption

  • Disclosed: 15.05.2024
  • Updated: 11.10.2026 10:22

The encryption and decryption process were vulnerable against the Bleichenbacher's attack, which is a padding oracle vulnerability disclosed in the 98'. The issue was about the wrong padding utilized, which allowed to retrieve the encrypted content. The OPENSSL_PKCS1_PADDING version, aka PKCS v1.5 was vulnerable (is the one set by default when using openssl_* methods), while the PKCS v2.0 isn't anymore (it's also called OAEP).

A fix for this vulnerability was merged at https://github.com/Cosmicist/AsymmetriCrypt/pull/5/commits/a0318cfc5022f2a7715322dba3ff91d475ace7c6.

Affected software

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PlatformPackageVulnerable versionsFixed in
Composer package asymmetricrypt/asymmetricrypt <= 0.3.0 no fix

References

CVSS score -
Weakness (CWE)
CWE-327
Platform
Composer
Package
asymmetricrypt/asymmetricrypt
Disclosed
15.05.2024
Updated
11.10.2026 10:22

Sources and licenses

OSV / GitHub Advisory Database - GHSA-87mp-xc4x-x8rh - CC BY 4.0

Vulnerability history: asymmetricrypt/asymmetricrypt

All published vulnerabilities of this package (Composer package), newest first. Shows whether this is a one-off slip or a package that needs watching.

This is the only known vulnerability of this package.

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