asymmetricrypt/asymmetricrypt Padding Oracle Vulnerability in RSA Encryption
Key facts
- Attack vector
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- Privileges required
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- User interaction
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- Attack complexity
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- Impact type
- Information disclosure
- Confidentiality · integrity · availability
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- Fix status
- No fix listed
No CVSS vector from any source. Fix status from GitHub. Impact type from CWE-327.
Summary
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.
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | asymmetricrypt/asymmetricrypt (Packagist) | up to 0.3.0 | — | No fix listed | GHSA-87mp-xc4x-x8rh |
- asymmetricrypt/asymmetricrypt (Packagist) Vendor— Affected up to 0.3.0 Fixed in — No fix listed GHSA-87mp-xc4x-x8rh
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-03 Threatist record created from GHSA-87mp-xc4x-x8rh
References
Sources
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences