// For flags

CVE-2023-26154

 

Severity Score

5.9
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

1
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

Versions of the package pubnub before 7.4.0; all versions of the package com.pubnub:pubnub; versions of the package pubnub before 6.19.0; all versions of the package github.com/pubnub/go; versions of the package github.com/pubnub/go/v7 before 7.2.0; versions of the package pubnub before 7.3.0; versions of the package pubnub/pubnub before 6.1.0; versions of the package pubnub before 5.3.0; versions of the package pubnub before 0.4.0; versions of the package pubnub/c-core before 4.5.0; versions of the package com.pubnub:pubnub-kotlin before 7.7.0; versions of the package pubnub/swift before 6.2.0; versions of the package pubnub before 5.2.0; versions of the package pubnub before 4.3.0 are vulnerable to Insufficient Entropy via the getKey function, due to inefficient implementation of the AES-256-CBC cryptographic algorithm. The provided encrypt function is less secure when hex encoding and trimming are applied, leaving half of the bits in the key always the same for every encoded message or file. **Note:** In order to exploit this vulnerability, the attacker needs to invest resources in preparing the attack and brute-force the encryption.

Versiones del paquete pubnub anteriores a 7.4.0; todas las versiones del paquete com.pubnub:pubnub; versiones del paquete pubnub anteriores a 6.19.0; todas las versiones del paquete github.com/pubnub/go; versiones del paquete github.com/pubnub/go/v7 anteriores a 7.2.0; versiones del paquete pubnub anteriores a 7.3.0; versiones del paquete pubnub/pubnub anteriores a 6.1.0; versiones del paquete pubnub anteriores a 5.3.0; versiones del paquete pubnub anteriores a 0.4.0; versiones del paquete pubnub/c-core anteriores a 4.5.0; versiones del paquete com.pubnub:pubnub-kotlin anteriores a 7.7.0; versiones del paquete pubnub/swift anteriores a 6.2.0; versiones del paquete pubnub anteriores a 5.2.0; Las versiones del paquete pubnub anteriores a la 4.3.0 son vulnerables a una entropía insuficiente a través de la función getKey, debido a una implementación ineficiente del algoritmo criptográfico AES-256-CBC. La función de cifrado proporcionada es menos segura cuando se aplica codificación y recorte hexadecimal, dejando la mitad de los bits de la clave siempre igual para cada mensaje o archivo codificado. **Nota:** Para aprovechar esta vulnerabilidad, el atacante necesita invertir recursos en preparar el ataque y aplicar fuerza bruta al cifrado.

*Credits: Varga Daniel
CVSS Scores
Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2023-02-20 CVE Reserved
  • 2023-12-06 CVE Published
  • 2024-08-02 CVE Updated
  • 2024-08-02 First Exploit
  • 2024-11-05 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
CWE
  • CWE-331: Insufficient Entropy
CAPEC
References (17)
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Pubnub
Search vendor "Pubnub"
C-core
Search vendor "Pubnub" for product "C-core"
< 4.5.0
Search vendor "Pubnub" for product "C-core" and version " < 4.5.0"
-
Affected
Pubnub
Search vendor "Pubnub"
Kotlin
Search vendor "Pubnub" for product "Kotlin"
< 7.7.0
Search vendor "Pubnub" for product "Kotlin" and version " < 7.7.0"
-
Affected
Pubnub
Search vendor "Pubnub"
Pubnub
Search vendor "Pubnub" for product "Pubnub"
< 0.4.0
Search vendor "Pubnub" for product "Pubnub" and version " < 0.4.0"
-
Affected
Pubnub
Search vendor "Pubnub"
Pubnub
Search vendor "Pubnub" for product "Pubnub"
< 7.2.0
Search vendor "Pubnub" for product "Pubnub" and version " < 7.2.0"
go
Affected
Pubnub
Search vendor "Pubnub"
Pubnub
Search vendor "Pubnub" for product "Pubnub"
>= 3.6.4 < 4.3.0
Search vendor "Pubnub" for product "Pubnub" and version " >= 3.6.4 < 4.3.0"
-
Affected
Pubnub
Search vendor "Pubnub"
Pubnub
Search vendor "Pubnub" for product "Pubnub"
>= 4.3.1 < 5.2.0
Search vendor "Pubnub" for product "Pubnub" and version " >= 4.3.1 < 5.2.0"
-
Affected
Pubnub
Search vendor "Pubnub"
Pubnub
Search vendor "Pubnub" for product "Pubnub"
>= 6.0.0 < 6.1.0
Search vendor "Pubnub" for product "Pubnub" and version " >= 6.0.0 < 6.1.0"
-
Affected
Pubnub
Search vendor "Pubnub"
Pubnub
Search vendor "Pubnub" for product "Pubnub"
>= 6.2.0 < 6.19.0
Search vendor "Pubnub" for product "Pubnub" and version " >= 6.2.0 < 6.19.0"
-
Affected
Pubnub
Search vendor "Pubnub"
Pubnub
Search vendor "Pubnub" for product "Pubnub"
>= 7.0.0 < 7.3.0
Search vendor "Pubnub" for product "Pubnub" and version " >= 7.0.0 < 7.3.0"
-
Affected
Pubnub
Search vendor "Pubnub"
Pubnub
Search vendor "Pubnub" for product "Pubnub"
>= 7.3.1 < 7.4.0
Search vendor "Pubnub" for product "Pubnub" and version " >= 7.3.1 < 7.4.0"
-
Affected
Pubnub
Search vendor "Pubnub"
Swift
Search vendor "Pubnub" for product "Swift"
< 6.2.0
Search vendor "Pubnub" for product "Swift" and version " < 6.2.0"
-
Affected