CVE-2020-17439

Published: Dic 11, 2020 Last Modified: Nov 21, 2024 EU-VD ID: EUVD-2020-9392 Aliases: GSD-2020-17439
ExploitDB:
Other exploit source:
Google Dorks:
HIGH 8,3
Source: [email protected]
Attack Vector: network
Attack Complexity: low
Privileges Required: none
User Interaction: none
Scope: changed
Confidentiality: low
Integrity: low
Availability: low
HIGH 7,5
Source: [email protected]
Access Vector: network
Access Complexity: low
Authentication: none
Confidentiality: partial
Integrity: partial
Availability: partial

Description

AI Translation Available

An issue was discovered in uIP 1.0, as used in Contiki 3.0 and other products. The code that parses incoming DNS packets does not validate that the incoming DNS replies match outgoing DNS queries in newdata() in resolv.c. Also, arbitrary DNS replies are parsed if there was any outgoing DNS query with a transaction ID that matches the transaction ID of an incoming reply. Provided that the default DNS cache is quite small (only four records) and that the transaction ID has a very limited set of values that is quite easy to guess, this can lead to DNS cache poisoning.

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
0,0029
Percentile
0,5th
Updated

EPSS Score Trend (Last 90 Days)

20

Improper Input Validation

Stable
Abstraction: Class Structure: Simple
Common Consequences
Security Scopes Affected:
Availability Confidentiality Integrity
Potential Impacts:
Dos: Crash, Exit, Or Restart Dos: Resource Consumption (Cpu) Dos: Resource Consumption (Memory) Read Memory Read Files Or Directories Modify Memory Execute Unauthorized Code Or Commands
Applicable Platforms
All platforms may be affected
Likelihood of Exploit: High
View CWE Details
Application

Uip by Uip Project

Product Information
Vendor Uip Project
Product Uip
Version 1.0
cpe:2.3:a:uip_project:uip:1.0:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
https://us-cert.cisa.gov/ics/advisories/icsa-20-343-01
Third Party Advisory US Government Resource
https://us-cert.cisa.gov/ics/advisories/icsa-20-343-01
https://www.kb.cert.org/vuls/id/815128
Third Party Advisory US Government Resource
https://www.kb.cert.org/vuls/id/815128
https://us-cert.cisa.gov/ics/advisories/icsa-20-343-01
Third Party Advisory US Government Resource
https://us-cert.cisa.gov/ics/advisories/icsa-20-343-01
https://www.kb.cert.org/vuls/id/815128
Third Party Advisory US Government Resource
https://www.kb.cert.org/vuls/id/815128