CVE-2024-21484

HIGH
Published Jan 22, 2024 Modified Nov 21, 2024 CWE-203

Description

Versions of the package jsrsasign before 11.0.0 are vulnerable to Observable Discrepancy via the RSA PKCS1.5 or RSAOAEP decryption process. An attacker can decrypt ciphertexts by exploiting the Marvin security flaw. Exploiting this vulnerability requires the attacker to have access to a large number of ciphertexts encrypted with the same key. Workaround The vulnerability can be mitigated by finding and replacing RSA and RSAOAEP decryption with another crypto library.

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CVSS v3.1 Score

7.5
HIGH
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:L

Weakness Type (CWE)

CWE-203 CWE-203

Affected Products

Vendor Product
jsrsasign_project jsrsasign

References

Frequently Asked Questions

What is CVE-2024-21484? +
Versions of the package jsrsasign before 11.0.0 are vulnerable to Observable Discrepancy via the RSA PKCS1.5 or RSAOAEP decryption process. An attacker can decrypt ciphertexts by exploiting the Marvin security flaw. Exploiting this vulnerability requires the attacker to have access to a large number of ciphertexts encrypted with the same key. Workaround The vulnerability can be mitigated by finding and replacing RSA and RSAOAEP decryption with another crypto library. It has a CVSS v3.1 base score of 7.5 (HIGH).
How severe is CVE-2024-21484? +
CVE-2024-21484 has a CVSS v3.1 score of 7.5 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.
What products are affected by CVE-2024-21484? +
CVE-2024-21484 affects products from jsrsasign_project, specifically: jsrsasign. Check the affected products table above for specific version ranges.
How do I check if I'm vulnerable to CVE-2024-21484? +
You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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