CVSS 5.9 · Medium EPSS 16,2%
Kerentanan Observable Discrepancy pada openssl, stormshield endpoint security +2 lainnya. Skor CVSS 3.1 5.9 (Medium) menurut NVD.
A timing based side channel exists in the OpenSSL RSA Decryption implementation which could be sufficient to recover a plaintext across a network in a Bleichenbacher style attack. To achieve a successful decryption an attacker would have to be able to send a very large number of trial messages for decryption. The vulnerability affects all RSA padding modes: PKCS#1 v1.5, RSA-OEAP and RSASVE. For example, in a TLS connection, RSA is commonly used by a client to send an encrypted pre-master secret to the server. An attacker that had observed a genuine connection between a client and a server could use this flaw to send trial messages to the server and record the time taken to process them. After a sufficiently large number of messages the attacker could recover the pre-master secret used for the original connection and thus be able to decrypt the application data sent over that connection.
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
· uraikan di kalkulator | Vendor | Produk | Versi terdampak |
|---|---|---|
| openssl | openssl | Versi 1.0.2 hingga sebelum 1.0.2zg |
| openssl | openssl | Versi 1.1.1 hingga sebelum 1.1.1t |
| openssl | openssl | Versi 3.0.0 hingga sebelum 3.0.8 |
| stormshield | endpoint security | Semua versi sebelum 7.2.40 |
| stormshield | sslvpn | Semua versi sebelum 3.2.1 |
| stormshield | stormshield network security | Versi 2.7.0 hingga sebelum 2.7.11 |
| stormshield | stormshield network security | Versi 2.8.0 hingga sebelum 3.7.34 |
| stormshield | stormshield network security | Versi 3.8.0 hingga sebelum 3.11.22 |
| stormshield | stormshield network security | Versi 4.0.0 hingga sebelum 4.3.16 |
| stormshield | stormshield network security | Versi 4.4.0 hingga sebelum 4.6.3 |