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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2018-20436 Detail

Disputed     

Current Description

The "secret chat" feature in Telegram 4.9.1 for Android has a "side channel" in which Telegram servers send GET requests for URLs typed while composing a chat message, before that chat message is sent. There are also GET requests to other URLs on the same web server. This also affects one or more other Telegram products, such as Telegram Web-version 0.7.0. In addition, it can be interpreted as an SSRF issue. NOTE: a third party has reported that potentially unwanted behavior is caused by misconfiguration of the "Secret chats > Preview links" setting


View Analysis Description

Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 3.x Severity and Vector Strings:

NIST CVSS score
NIST: NVD
Base Score:  8.1 HIGH
Vector:  CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

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Hyperlink Resource
https://misteralfa-hack.blogspot.com/2018/12/abusando-de-telegram-para-conseguir-una.html Exploit  Third Party Advisory 
https://misteralfa-hack.blogspot.com/2018/12/abusando-de-telegram-para-conseguir-una.html Exploit  Third Party Advisory 
https://misteralfa-hack.blogspot.com/2018/12/telegram-siempre-in-middle.html Exploit  Third Party Advisory 
https://misteralfa-hack.blogspot.com/2018/12/telegram-siempre-in-middle.html Exploit  Third Party Advisory 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-918 Server-Side Request Forgery (SSRF) cwe source acceptance level NIST  

Known Affected Software Configurations Switch to CPE 2.2

Configuration 1 ( hide )
 cpe:2.3:a:telegram:telegram:4.9.1:*:*:*:*:android:*:*
   Show Matching CPE(s)
 cpe:2.3:a:telegram:web:0.7.0:*:*:*:*:*:*:*
   Show Matching CPE(s)

Denotes Vulnerable Software
Are we missing a CPE here? Please let us know.

Change History

9 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2018-20436
NVD Published Date:
12/24/2018
NVD Last Modified:
11/20/2024
Source:
MITRE