// For flags

CVE-2020-15720

pki: Dogtag's python client does not validate certificates

Severity Score

6.8
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

In Dogtag PKI through 10.8.3, the pki.client.PKIConnection class did not enable python-requests certificate validation. Since the verify parameter was hard-coded in all request functions, it was not possible to override the setting. As a result, tools making use of this class, such as the pki-server command, may have been vulnerable to Person-in-the-Middle attacks in certain non-localhost use cases. This is fixed in 10.9.0-b1.

En Dogtag PKI versiones hasta 10.8.3, la clase pki.client.PKIConnection no habilitó la comprobación de certificados de peticiones de python. Como el parámetro de verificación estaba embebido en todas las funciones de petición, no fue posible anular la configuración. Como resultado, las herramientas que utilizan esta clase, tal y como el comando pki-server, pueden haber sido vulnerables a ataques de tipo Person-in-the-Middle en determinados casos de uso de un no localhost. Esto es corregido en la versión 10.9.0-b1

A flaw was found in PKI, where the dogtag's pki.client.PKIConnection class disables the python-requests certificate validation. This flaw allows an attacker to intercept a connection between a FreeIPA client and a server, and execute an active Man-in-the-Middle attack. The highest threat from this vulnerability is to confidentiality and integrity.

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
None
Attack Vector
Network
Attack Complexity
High
Authentication
None
Confidentiality
Partial
Integrity
Partial
Availability
None
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2020-07-14 CVE Reserved
  • 2020-07-14 CVE Published
  • 2024-05-18 EPSS Updated
  • 2024-08-04 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
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
Dogtagpki
Search vendor "Dogtagpki"
 Dogtagpki
Search vendor "Dogtagpki" for product "Dogtagpki"
 <= 10.8.3
Search vendor "Dogtagpki" for product "Dogtagpki" and version " <= 10.8.3"
-
Affected