// For flags

CVE-2019-1681

Cisco Network Convergence System 1000 Series TFTP Directory Traversal Vulnerability

Severity Score

7.5
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

Attend
*SSVC
Descriptions

A vulnerability in the TFTP service of Cisco Network Convergence System 1000 Series software could allow an unauthenticated, remote attacker to retrieve arbitrary files from the targeted device, possibly resulting in information disclosure. The vulnerability is due to improper validation of user-supplied input within TFTP requests processed by the affected software. An attacker could exploit this vulnerability by using directory traversal techniques in malicious requests sent to the TFTP service on a targeted device. An exploit could allow the attacker to retrieve arbitrary files from the targeted device, resulting in the disclosure of sensitive information. This vulnerability affects Cisco IOS XR Software releases prior to Release 6.5.2 for Cisco Network Convergence System 1000 Series devices when the TFTP service is enabled.

Una vulnerabilidad en el servicio TFTP del software Convergence System 1000 Series de Cisco podría permitir a un atacante remoto no autenticado recuperar archivos arbitrarios del dispositivo objetivo, posiblemente resultando en una divulgación de información. Dicha vulnerabilidad se debe a la validación incorrecta de entrada de datos de parte del usuario por parte del software afectado. Un atacante podría explotar esta vulnerabilidad utilizando técnicas de salto de directorio en peticiones maliciosas enviadas al servicio TFTP en un dispositivo objetivo. Un exploit podría permitir al atacante recuperar archivos arbitrarios del dispositivo objetivo, conduciendo a la divulgación de información sensible. Esta vulnerabilidad afecta a las distribuciones de software de Cisco IOS XR anteriores a la 6.5.2 para dispositivos de Cisco Network Convergence System 1000 Series cuando el servicio TFTP está habilitado.

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None
Attack Vector
Network
Attack Complexity
Low
Authentication
None
Confidentiality
Partial
Integrity
None
Availability
None
* Common Vulnerability Scoring System
SSVC
  • Decision:Attend
Exploitation
None
Automatable
Yes
Tech. Impact
Partial
* Organization's Worst-case Scenario
Timeline
  • 2018-12-06 CVE Reserved
  • 2019-02-21 CVE Published
  • 2024-07-13 EPSS Updated
  • 2024-11-19 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
  • CWE-200: Exposure of Sensitive Information to an Unauthorized Actor
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Cisco
Search vendor "Cisco"
Ios Xr
Search vendor "Cisco" for product "Ios Xr"
< 6.5.2
Search vendor "Cisco" for product "Ios Xr" and version " < 6.5.2"
-
Affected