// For flags

CVE-2013-4548

 

Severity Score

6.0
*CVSS v2

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

The mm_newkeys_from_blob function in monitor_wrap.c in sshd in OpenSSH 6.2 and 6.3, when an AES-GCM cipher is used, does not properly initialize memory for a MAC context data structure, which allows remote authenticated users to bypass intended ForceCommand and login-shell restrictions via packet data that provides a crafted callback address.

La función mm_newkeys_from_blob en monitor_wrap.c de sshd en OpenSSH 6.2 y 6.3, cuando se utiliza el cifrado AES-GCM, no inicia correctamente la memoria para una estructura de datos de contexto MAC, lo que permite a usuarios remotos autenticados evadir intencionadamente ForceCommand y restricciones login-shell a través de un paquete de datos que proporciona una dirección de rellamada manipulada.

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Medium
Authentication
Single
Confidentiality
Partial
Integrity
Partial
Availability
Partial
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2013-06-12 CVE Reserved
  • 2013-11-08 CVE Published
  • 2024-08-06 CVE Updated
  • 2024-08-12 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-264: Permissions, Privileges, and Access Controls
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Openbsd
Search vendor "Openbsd"
 Openssh
Search vendor "Openbsd" for product "Openssh"
 6.2
Search vendor "Openbsd" for product "Openssh" and version "6.2"
-
Affected
Openbsd
Search vendor "Openbsd"
 Openssh
Search vendor "Openbsd" for product "Openssh"
 6.3
Search vendor "Openbsd" for product "Openssh" and version "6.3"
-
Affected