// For flags

CVE-2022-27782

curl: TLS and SSH connection too eager reuse

Severity Score

7.5
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

1
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

libcurl would reuse a previously created connection even when a TLS or SSHrelated option had been changed that should have prohibited reuse.libcurl keeps previously used connections in a connection pool for subsequenttransfers to reuse if one of them matches the setup. However, several TLS andSSH settings were left out from the configuration match checks, making themmatch too easily.

libcurl reusaba una conexión creada previamente incluso cuando había sido cambiada una opción relacionada con TLS o SSH que debería haber prohibido el reúso. libcurl mantiene las conexiones usadas previamente en un pool de conexiones para que las transferencias posteriores las reúsen si una de ellas coincide con la configuración. Sin embargo, varias opciones relacionadas con TLS y SSH se dejaron fuera de las comprobaciones de coincidencia de la configuración, lo que hizo que coincidieran con demasiada facilidad

A vulnerability was found in curl. This issue occurs because curl can reuse a previously created connection even when a TLS or SSH-related option is changed that should have prohibited reuse. This flaw leads to an authentication bypass, either by mistake or by a malicious actor.

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
High
Availability
None
Attack Vector
Network
Attack Complexity
Low
Authentication
None
Confidentiality
None
Integrity
Partial
Availability
None
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2022-03-23 CVE Reserved
  • 2022-05-11 CVE Published
  • 2023-12-23 EPSS Updated
  • 2024-08-03 CVE Updated
  • 2024-08-03 First Exploit
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
CWE
  • CWE-295: Improper Certificate Validation
  • CWE-840: Business Logic Errors
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"
< 7.83.1
Search vendor "Haxx" for product "Curl" and version " < 7.83.1"
-
Affected
Debian
Search vendor "Debian"
Debian Linux
Search vendor "Debian" for product "Debian Linux"
10.0
Search vendor "Debian" for product "Debian Linux" and version "10.0"
-
Affected
Debian
Search vendor "Debian"
Debian Linux
Search vendor "Debian" for product "Debian Linux"
11.0
Search vendor "Debian" for product "Debian Linux" and version "11.0"
-
Affected
Splunk
Search vendor "Splunk"
Universal Forwarder
Search vendor "Splunk" for product "Universal Forwarder"
>= 8.2.0 < 8.2.12
Search vendor "Splunk" for product "Universal Forwarder" and version " >= 8.2.0 < 8.2.12"
-
Affected
Splunk
Search vendor "Splunk"
Universal Forwarder
Search vendor "Splunk" for product "Universal Forwarder"
>= 9.0.0 < 9.0.6
Search vendor "Splunk" for product "Universal Forwarder" and version " >= 9.0.0 < 9.0.6"
-
Affected
Splunk
Search vendor "Splunk"
Universal Forwarder
Search vendor "Splunk" for product "Universal Forwarder"
9.1.0
Search vendor "Splunk" for product "Universal Forwarder" and version "9.1.0"
-
Affected