CVE-2024-8096

OCSP stapling bypass with GnuTLS

Severity Score

6.5

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

Attend

*SSVC

Descriptions

MITRE

When curl is told to use the Certificate Status Request TLS extension, often referred to as OCSP stapling, to verify that the server certificate is valid, it might fail to detect some OCSP problems and instead wrongly consider the response as fine. If the returned status reports another error than 'revoked' (like for example 'unauthorized') it is not treated as a bad certficate.

*Credits: Hiroki Kurosawa, Daniel Stenberg

CVSS Scores

CISAv3.1 6.5

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

Low

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:Attend

Exploitation

None

Automatable

Yes

Tech. Impact

Partial

* Organization's Worst-case Scenario

Timeline

2024-08-22 CVE Reserved
2024-09-11 CVE Published
2024-09-12 EPSS Updated
2024-11-14 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-295: Improper Certificate Validation

CAPEC

References (3)

URL	Tag	Source
https://curl.se/docs/CVE-2024-8096.json
https://curl.se/docs/CVE-2024-8096.html
https://hackerone.com/reports/2669852

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Curl Search vendor "Curl"		Curl Search vendor "Curl" for product "Curl"				8.9.1 Search vendor "Curl" for product "Curl" and version "8.9.1"		en		Affected
Curl Search vendor "Curl"		Curl Search vendor "Curl" for product "Curl"				8.9.0 Search vendor "Curl" for product "Curl" and version "8.9.0"		en		Affected
Curl Search vendor "Curl"		Curl Search vendor "Curl" for product "Curl"				8.8.0 Search vendor "Curl" for product "Curl" and version "8.8.0"		en		Affected
Curl Search vendor "Curl"		Curl Search vendor "Curl" for product "Curl"				8.7.1 Search vendor "Curl" for product "Curl" and version "8.7.1"		en		Affected
Curl Search vendor "Curl"		Curl Search vendor "Curl" for product "Curl"				8.7.0 Search vendor "Curl" for product "Curl" and version "8.7.0"		en		Affected
Curl Search vendor "Curl"		Curl Search vendor "Curl" for product "Curl"				8.6.0 Search vendor "Curl" for product "Curl" and version "8.6.0"		en		Affected
Curl Search vendor "Curl"		Curl Search vendor "Curl" for product "Curl"				8.5.0 Search vendor "Curl" for product "Curl" and version "8.5.0"		en		Affected
Curl Search vendor "Curl"		Curl Search vendor "Curl" for product "Curl"				8.4.0 Search vendor "Curl" for product "Curl" and version "8.4.0"		en		Affected
Curl Search vendor "Curl"		Curl Search vendor "Curl" for product "Curl"				8.3.0 Search vendor "Curl" for product "Curl" and version "8.3.0"		en		Affected
Curl Search vendor "Curl"		Curl Search vendor "Curl" for product "Curl"				8.2.1 Search vendor "Curl" for product "Curl" and version "8.2.1"		en		Affected
Curl Search vendor "Curl"		Curl Search vendor "Curl" for product "Curl"				8.2.0 Search vendor "Curl" for product "Curl" and version "8.2.0"		en		Affected
Curl Search vendor "Curl"		Curl Search vendor "Curl" for product "Curl"				8.1.2 Search vendor "Curl" for product "Curl" and version "8.1.2"		en		Affected
Curl Search vendor "Curl"		Curl Search vendor "Curl" for product "Curl"				8.1.1 Search vendor "Curl" for product "Curl" and version "8.1.1"		en		Affected
Curl Search vendor "Curl"		Curl Search vendor "Curl" for product "Curl"				8.1.0 Search vendor "Curl" for product "Curl" and version "8.1.0"		en		Affected
Curl Search vendor "Curl"		Curl Search vendor "Curl" for product "Curl"				8.0.1 Search vendor "Curl" for product "Curl" and version "8.0.1"		en		Affected
Curl Search vendor "Curl"		Curl Search vendor "Curl" for product "Curl"				8.0.0 Search vendor "Curl" for product "Curl" and version "8.0.0"		en		Affected
Curl Search vendor "Curl"		Curl Search vendor "Curl" for product "Curl"				7.88.1 Search vendor "Curl" for product "Curl" and version "7.88.1"		en		Affected
Curl Search vendor "Curl"		Curl Search vendor "Curl" for product "Curl"				7.88.0 Search vendor "Curl" for product "Curl" and version "7.88.0"		en		Affected
Curl Search vendor "Curl"		Curl Search vendor "Curl" for product "Curl"				7.87.0 Search vendor "Curl" for product "Curl" and version "7.87.0"		en		Affected
Curl Search vendor "Curl"		Curl Search vendor "Curl" for product "Curl"				7.86.0 Search vendor "Curl" for product "Curl" and version "7.86.0"		en		Affected
Curl Search vendor "Curl"		Curl Search vendor "Curl" for product "Curl"				7.85.0 Search vendor "Curl" for product "Curl" and version "7.85.0"		en		Affected
Curl Search vendor "Curl"		Curl Search vendor "Curl" for product "Curl"				7.84.0 Search vendor "Curl" for product "Curl" and version "7.84.0"		en		Affected
Curl Search vendor "Curl"		Curl Search vendor "Curl" for product "Curl"				7.83.1 Search vendor "Curl" for product "Curl" and version "7.83.1"		en		Affected
Curl Search vendor "Curl"		Curl Search vendor "Curl" for product "Curl"				7.83.0 Search vendor "Curl" for product "Curl" and version "7.83.0"		en		Affected
Curl Search vendor "Curl"		Curl Search vendor "Curl" for product "Curl"				7.82.0 Search vendor "Curl" for product "Curl" and version "7.82.0"		en		Affected
Curl Search vendor "Curl"		Curl Search vendor "Curl" for product "Curl"				7.81.0 Search vendor "Curl" for product "Curl" and version "7.81.0"		en		Affected
Curl Search vendor "Curl"		Curl Search vendor "Curl" for product "Curl"				7.80.0 Search vendor "Curl" for product "Curl" and version "7.80.0"		en		Affected
Curl Search vendor "Curl"		Curl Search vendor "Curl" for product "Curl"				7.79.1 Search vendor "Curl" for product "Curl" and version "7.79.1"		en		Affected
Curl Search vendor "Curl"		Curl Search vendor "Curl" for product "Curl"				7.79.0 Search vendor "Curl" for product "Curl" and version "7.79.0"		en		Affected
Curl Search vendor "Curl"		Curl Search vendor "Curl" for product "Curl"				7.78.0 Search vendor "Curl" for product "Curl" and version "7.78.0"		en		Affected
Curl Search vendor "Curl"		Curl Search vendor "Curl" for product "Curl"				7.77.0 Search vendor "Curl" for product "Curl" and version "7.77.0"		en		Affected
Curl Search vendor "Curl"		Curl Search vendor "Curl" for product "Curl"				7.76.1 Search vendor "Curl" for product "Curl" and version "7.76.1"		en		Affected
Curl Search vendor "Curl"		Curl Search vendor "Curl" for product "Curl"				7.76.0 Search vendor "Curl" for product "Curl" and version "7.76.0"		en		Affected
Curl Search vendor "Curl"		Curl Search vendor "Curl" for product "Curl"				7.75.0 Search vendor "Curl" for product "Curl" and version "7.75.0"		en		Affected
Curl Search vendor "Curl"		Curl Search vendor "Curl" for product "Curl"				7.74.0 Search vendor "Curl" for product "Curl" and version "7.74.0"		en		Affected
Curl Search vendor "Curl"		Curl Search vendor "Curl" for product "Curl"				7.73.0 Search vendor "Curl" for product "Curl" and version "7.73.0"		en		Affected
Curl Search vendor "Curl"		Curl Search vendor "Curl" for product "Curl"				7.72.0 Search vendor "Curl" for product "Curl" and version "7.72.0"		en		Affected
Curl Search vendor "Curl"		Curl Search vendor "Curl" for product "Curl"				7.71.1 Search vendor "Curl" for product "Curl" and version "7.71.1"		en		Affected
Curl Search vendor "Curl"		Curl Search vendor "Curl" for product "Curl"				7.71.0 Search vendor "Curl" for product "Curl" and version "7.71.0"		en		Affected
Curl Search vendor "Curl"		Curl Search vendor "Curl" for product "Curl"				7.70.0 Search vendor "Curl" for product "Curl" and version "7.70.0"		en		Affected
Curl Search vendor "Curl"		Curl Search vendor "Curl" for product "Curl"				7.69.1 Search vendor "Curl" for product "Curl" and version "7.69.1"		en		Affected
Curl Search vendor "Curl"		Curl Search vendor "Curl" for product "Curl"				7.69.0 Search vendor "Curl" for product "Curl" and version "7.69.0"		en		Affected
Curl Search vendor "Curl"		Curl Search vendor "Curl" for product "Curl"				7.68.0 Search vendor "Curl" for product "Curl" and version "7.68.0"		en		Affected
Curl Search vendor "Curl"		Curl Search vendor "Curl" for product "Curl"				7.67.0 Search vendor "Curl" for product "Curl" and version "7.67.0"		en		Affected
Curl Search vendor "Curl"		Curl Search vendor "Curl" for product "Curl"				7.66.0 Search vendor "Curl" for product "Curl" and version "7.66.0"		en		Affected
Curl Search vendor "Curl"		Curl Search vendor "Curl" for product "Curl"				7.65.3 Search vendor "Curl" for product "Curl" and version "7.65.3"		en		Affected
Curl Search vendor "Curl"		Curl Search vendor "Curl" for product "Curl"				7.65.2 Search vendor "Curl" for product "Curl" and version "7.65.2"		en		Affected
Curl Search vendor "Curl"		Curl Search vendor "Curl" for product "Curl"				7.65.1 Search vendor "Curl" for product "Curl" and version "7.65.1"		en		Affected
Curl Search vendor "Curl"		Curl Search vendor "Curl" for product "Curl"				7.65.0 Search vendor "Curl" for product "Curl" and version "7.65.0"		en		Affected
Curl Search vendor "Curl"		Curl Search vendor "Curl" for product "Curl"				7.64.1 Search vendor "Curl" for product "Curl" and version "7.64.1"		en		Affected
Curl Search vendor "Curl"		Curl Search vendor "Curl" for product "Curl"				7.64.0 Search vendor "Curl" for product "Curl" and version "7.64.0"		en		Affected
Curl Search vendor "Curl"		Curl Search vendor "Curl" for product "Curl"				7.63.0 Search vendor "Curl" for product "Curl" and version "7.63.0"		en		Affected
Curl Search vendor "Curl"		Curl Search vendor "Curl" for product "Curl"				7.62.0 Search vendor "Curl" for product "Curl" and version "7.62.0"		en		Affected
Curl Search vendor "Curl"		Curl Search vendor "Curl" for product "Curl"				7.61.1 Search vendor "Curl" for product "Curl" and version "7.61.1"		en		Affected
Curl Search vendor "Curl"		Curl Search vendor "Curl" for product "Curl"				7.61.0 Search vendor "Curl" for product "Curl" and version "7.61.0"		en		Affected
Curl Search vendor "Curl"		Curl Search vendor "Curl" for product "Curl"				7.60.0 Search vendor "Curl" for product "Curl" and version "7.60.0"		en		Affected
Curl Search vendor "Curl"		Curl Search vendor "Curl" for product "Curl"				7.59.0 Search vendor "Curl" for product "Curl" and version "7.59.0"		en		Affected
Curl Search vendor "Curl"		Curl Search vendor "Curl" for product "Curl"				7.58.0 Search vendor "Curl" for product "Curl" and version "7.58.0"		en		Affected
Curl Search vendor "Curl"		Curl Search vendor "Curl" for product "Curl"				7.57.0 Search vendor "Curl" for product "Curl" and version "7.57.0"		en		Affected
Curl Search vendor "Curl"		Curl Search vendor "Curl" for product "Curl"				7.56.1 Search vendor "Curl" for product "Curl" and version "7.56.1"		en		Affected
Curl Search vendor "Curl"		Curl Search vendor "Curl" for product "Curl"				7.56.0 Search vendor "Curl" for product "Curl" and version "7.56.0"		en		Affected
Curl Search vendor "Curl"		Curl Search vendor "Curl" for product "Curl"				7.55.1 Search vendor "Curl" for product "Curl" and version "7.55.1"		en		Affected
Curl Search vendor "Curl"		Curl Search vendor "Curl" for product "Curl"				7.55.0 Search vendor "Curl" for product "Curl" and version "7.55.0"		en		Affected
Curl Search vendor "Curl"		Curl Search vendor "Curl" for product "Curl"				7.54.1 Search vendor "Curl" for product "Curl" and version "7.54.1"		en		Affected
Curl Search vendor "Curl"		Curl Search vendor "Curl" for product "Curl"				7.54.0 Search vendor "Curl" for product "Curl" and version "7.54.0"		en		Affected
Curl Search vendor "Curl"		Curl Search vendor "Curl" for product "Curl"				7.53.1 Search vendor "Curl" for product "Curl" and version "7.53.1"		en		Affected
Curl Search vendor "Curl"		Curl Search vendor "Curl" for product "Curl"				7.53.0 Search vendor "Curl" for product "Curl" and version "7.53.0"		en		Affected
Curl Search vendor "Curl"		Curl Search vendor "Curl" for product "Curl"				7.52.1 Search vendor "Curl" for product "Curl" and version "7.52.1"		en		Affected
Curl Search vendor "Curl"		Curl Search vendor "Curl" for product "Curl"				7.52.0 Search vendor "Curl" for product "Curl" and version "7.52.0"		en		Affected
Curl Search vendor "Curl"		Curl Search vendor "Curl" for product "Curl"				7.51.0 Search vendor "Curl" for product "Curl" and version "7.51.0"		en		Affected
Curl Search vendor "Curl"		Curl Search vendor "Curl" for product "Curl"				7.50.3 Search vendor "Curl" for product "Curl" and version "7.50.3"		en		Affected
Curl Search vendor "Curl"		Curl Search vendor "Curl" for product "Curl"				7.50.2 Search vendor "Curl" for product "Curl" and version "7.50.2"		en		Affected
Curl Search vendor "Curl"		Curl Search vendor "Curl" for product "Curl"				7.50.1 Search vendor "Curl" for product "Curl" and version "7.50.1"		en		Affected
Curl Search vendor "Curl"		Curl Search vendor "Curl" for product "Curl"				7.50.0 Search vendor "Curl" for product "Curl" and version "7.50.0"		en		Affected
Curl Search vendor "Curl"		Curl Search vendor "Curl" for product "Curl"				7.49.1 Search vendor "Curl" for product "Curl" and version "7.49.1"		en		Affected
Curl Search vendor "Curl"		Curl Search vendor "Curl" for product "Curl"				7.49.0 Search vendor "Curl" for product "Curl" and version "7.49.0"		en		Affected
Curl Search vendor "Curl"		Curl Search vendor "Curl" for product "Curl"				7.48.0 Search vendor "Curl" for product "Curl" and version "7.48.0"		en		Affected
Curl Search vendor "Curl"		Curl Search vendor "Curl" for product "Curl"				7.47.1 Search vendor "Curl" for product "Curl" and version "7.47.1"		en		Affected
Curl Search vendor "Curl"		Curl Search vendor "Curl" for product "Curl"				7.47.0 Search vendor "Curl" for product "Curl" and version "7.47.0"		en		Affected
Curl Search vendor "Curl"		Curl Search vendor "Curl" for product "Curl"				7.46.0 Search vendor "Curl" for product "Curl" and version "7.46.0"		en		Affected
Curl Search vendor "Curl"		Curl Search vendor "Curl" for product "Curl"				7.45.0 Search vendor "Curl" for product "Curl" and version "7.45.0"		en		Affected
Curl Search vendor "Curl"		Curl Search vendor "Curl" for product "Curl"				7.44.0 Search vendor "Curl" for product "Curl" and version "7.44.0"		en		Affected
Curl Search vendor "Curl"		Curl Search vendor "Curl" for product "Curl"				7.43.0 Search vendor "Curl" for product "Curl" and version "7.43.0"		en		Affected
Curl Search vendor "Curl"		Curl Search vendor "Curl" for product "Curl"				7.42.1 Search vendor "Curl" for product "Curl" and version "7.42.1"		en		Affected
Curl Search vendor "Curl"		Curl Search vendor "Curl" for product "Curl"				7.42.0 Search vendor "Curl" for product "Curl" and version "7.42.0"		en		Affected
Curl Search vendor "Curl"		Curl Search vendor "Curl" for product "Curl"				7.41.0 Search vendor "Curl" for product "Curl" and version "7.41.0"		en		Affected