CVE-2021-20134

Published: Dic 30, 2021 Last Modified: Nov 21, 2024 EU-VD ID: EUVD-2021-7591 Aliases: GSD-2021-20134
ExploitDB:
Other exploit source:
Google Dorks:
HIGH 8,4
Source: [email protected]
Attack Vector: adjacent_network
Attack Complexity: low
Privileges Required: high
User Interaction: none
Scope: changed
Confidentiality: high
Integrity: high
Availability: high
HIGH 7,4
Source: [email protected]
Access Vector: adjacent_network
Access Complexity: medium
Authentication: single
Confidentiality: complete
Integrity: complete
Availability: complete

Description

AI Translation Available

Quagga Services on D-Link DIR-2640 less than or equal to version 1.11B02 are affected by an absolute path traversal vulnerability that allows a remote, authenticated attacker to set an arbitrary file on the router's filesystem as the log file used by either Quagga service (zebra or ripd). Subsequent log messages will be appended to the file, prefixed by a timestamp and some logging metadata. Remote code execution can be achieved by using this vulnerability to append to a shell script on the router's filesystem, and then awaiting or triggering the execution of that script. A remote, unauthenticated root shell can easily be obtained on the device in this fashion.

EPSS (Exploit Prediction Scoring System)

Trend Analysis

EPSS (Exploit Prediction Scoring System)

Prevede la probabilità di sfruttamento basata su intelligence sulle minacce e sulle caratteristiche della vulnerabilità.

EPSS Score
0,0109
Percentile
0,8th
Updated

EPSS Score Trend (Last 91 Days)

22

Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Stable
Abstraction: Base Structure: Simple
Common Consequences
Security Scopes Affected:
Integrity Confidentiality Availability
Potential Impacts:
Execute Unauthorized Code Or Commands Modify Files Or Directories Read Files Or Directories Dos: Crash, Exit, Or Restart
Applicable Platforms
Technologies: AI/ML
Likelihood of Exploit: High
View CWE Details
Operating System

Dir-2640-Us Firmware by Dlink

Product Information
Vendor Dlink
Product Dir-2640-Us Firmware
Version Range Affected
To 1.11b02 (inclusive)
cpe:2.3:o:dlink:dir-2640-us_firmware:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
https://www.tenable.com/security/research/tra-2021-44
Exploit Third Party Advisory
https://www.tenable.com/security/research/tra-2021-44
https://www.tenable.com/security/research/tra-2021-44
Exploit Third Party Advisory
https://www.tenable.com/security/research/tra-2021-44