CVE Vulnerability

CVE-2020-20950

Bleichenbacher's attack on PKCS #1 v1.5 padding for RSA in Microchip Libraries for Applications 2018-11-26 All up to 2018-11-26. The vulnerability can allow one to use Bleichenbacher's oracle attack to decrypt an encrypted ciphertext by making successive queries to the server using the vulnerable library, resulting in remote information disclosure.

4.3 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 8.6 / Impact : 2.9

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact PARTIAL

Integrity Impact NONE

Availability Impact NONE

Scope

5.9 /10

CVSS v3.0 : MEDIUM

V3 Legend

Vector :

Exploitability : 2.2 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References
Link Resource
https://bi-zone.medium.com/silence-will-fall-or-how-it-can-take-2-years-to-get-your-vuln-registered-e6134846f5bb Technical Description Third Party Advisory
http://microchip.com Product
https://www.microchip.com/mplab/microchip-libraries-for-applications Product
http://archiv.infsec.ethz.ch/education/fs08/secsem/bleichenbacher98.pdf Technical Description Third Party Advisory
Configurations

Configuration 1

cpe:2.3:a:ietf:public_key_cryptography_standards_#1:1.5:*:*:*:*:*:*:*
Information

Published : 2021-01-19 01:15

Updated : 2021-09-08 05:22

NVD link : CVE-2020-20950

Mitre link : CVE-2020-20950

Products Affected
No products.
CWE
CWE-327