// For flags

CVE-2020-25694

postgresql: Reconnection can downgrade connection security settings

Severity Score

8.1
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

A flaw was found in PostgreSQL versions before 13.1, before 12.5, before 11.10, before 10.15, before 9.6.20 and before 9.5.24. If a client application that creates additional database connections only reuses the basic connection parameters while dropping security-relevant parameters, an opportunity for a man-in-the-middle attack, or the ability to observe clear-text transmissions, could exist. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.

Se encontró un fallo en PostgreSQL versiones anteriores a 13.1, anteriores a 12.5, anteriores a 11.10, anteriores a 10.15, anteriores a 9.6.20 y anteriores a 9.5.24. Si una aplicación cliente que crea conexiones de base de datos adicionales solo reutiliza los parámetros de conexión básicos mientras elimina los parámetros relevantes para la seguridad, una oportunidad para un ataque de tipo man-in-the-middle, o la capacidad de observar transmisiones de texto sin cifrar podrían existir. La mayor amenaza de esta vulnerabilidad es la confidencialidad e integridad de los datos, así como la disponibilidad del sistema

A flaw was found in postgresql. If a client application that creates additional database connections only reuses the basic connection parameters while dropping security-relevant parameters, an opportunity for a man-in-the-middle attack, or the ability to observe clear-text transmissions, could exist. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Attack Vector
Network
Attack Complexity
Medium
Authentication
None
Confidentiality
Partial
Integrity
Partial
Availability
Partial
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2020-09-16 CVE Reserved
  • 2020-11-16 CVE Published
  • 2023-08-01 EPSS Updated
  • 2024-08-04 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-327: Use of a Broken or Risky Cryptographic Algorithm
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Postgresql
Search vendor "Postgresql"
Postgresql
Search vendor "Postgresql" for product "Postgresql"
< 9.5.24
Search vendor "Postgresql" for product "Postgresql" and version " < 9.5.24"
-
Affected
Postgresql
Search vendor "Postgresql"
Postgresql
Search vendor "Postgresql" for product "Postgresql"
>= 9.6.0 < 9.6.20
Search vendor "Postgresql" for product "Postgresql" and version " >= 9.6.0 < 9.6.20"
-
Affected
Postgresql
Search vendor "Postgresql"
Postgresql
Search vendor "Postgresql" for product "Postgresql"
>= 10.0 < 10.15
Search vendor "Postgresql" for product "Postgresql" and version " >= 10.0 < 10.15"
-
Affected
Postgresql
Search vendor "Postgresql"
Postgresql
Search vendor "Postgresql" for product "Postgresql"
>= 11.0 < 11.10
Search vendor "Postgresql" for product "Postgresql" and version " >= 11.0 < 11.10"
-
Affected
Postgresql
Search vendor "Postgresql"
Postgresql
Search vendor "Postgresql" for product "Postgresql"
>= 12.0 < 12.5
Search vendor "Postgresql" for product "Postgresql" and version " >= 12.0 < 12.5"
-
Affected
Postgresql
Search vendor "Postgresql"
Postgresql
Search vendor "Postgresql" for product "Postgresql"
>= 13.0 < 13.1
Search vendor "Postgresql" for product "Postgresql" and version " >= 13.0 < 13.1"
-
Affected
Debian
Search vendor "Debian"
Debian Linux
Search vendor "Debian" for product "Debian Linux"
9.0
Search vendor "Debian" for product "Debian Linux" and version "9.0"
-
Affected