// For flags

CVE-2024-0853

OCSP verification bypass with TLS session reuse

Severity Score

5.3
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

1
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

curl inadvertently kept the SSL session ID for connections in its cache even when the verify status (*OCSP stapling*) test failed. A subsequent transfer to
the same hostname could then succeed if the session ID cache was still fresh, which then skipped the verify status check.

curl inadvertidamente mantuvo el ID de sesión SSL para las conexiones en su caché incluso cuando falló la prueba de verificación del estado (*OCSP stapling*). Una transferencia posterior al mismo nombre de host podría tener éxito si la caché de ID de sesión aún estuviera actualizada, lo que luego omitiría la verificación de estado de verificación.

*Credits: Hiroki Kurosawa, Daniel Stenberg
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
Low
Availability
None
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2024-01-24 CVE Reserved
  • 2024-02-03 CVE Published
  • 2024-05-04 EPSS Updated
  • 2024-08-01 CVE Updated
  • 2024-08-01 First Exploit
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
CWE
  • CWE-295: Improper Certificate Validation
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Haxx
Search vendor "Haxx"
Curl
Search vendor "Haxx" for product "Curl"
8.5.0
Search vendor "Haxx" for product "Curl" and version "8.5.0"
-
Affected