#VU48895 Improper Check for Certificate Revocation


Published: 2020-12-09 | Updated: 2021-04-27

Vulnerability identifier: #VU48895

Vulnerability risk: Medium

CVSSv3.1:

CVE-ID: CVE-2020-8286

CWE-ID: CWE-299

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
cURL
Client/Desktop applications / Other client software

Vendor: curl.haxx.se

Description

The vulnerability allows a remote attacker to bypass implemented security restrictions.

The vulnerability exists due to incorrectly implemented checks for OCSP stapling. A remote attacker can provide a fraudulent OCSP response that would appear fine, instead of the real one.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

cURL: 7.41.0 - 7.73.0


CPE

External links
http://curl.haxx.se/docs/CVE-2020-8286.html


Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?


Latest bulletins with this vulnerability