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CVE-2018-20436
Detail
Disputed
Modified
This vulnerability has been modified since it was last analyzed by the NVD. It is awaiting reanalysis which may result in further changes to the information provided.
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
** DISPUTED ** 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.
NVD Analysts use publicly available information to associate vector strings and CVSS scores. We also display any CVSS information provided within the CVE List from the CNA.
Note: NVD Analysts have published a CVSS score for this CVE based on publicly available information at the time of analysis. The CNA has not provided a score within the CVE List.
NVD Analysts use publicly available information to associate vector strings and CVSS scores. We also display any CVSS information provided within the CVE List from the CNA.
Note: NVD Analysts have published a CVSS score for this CVE based on publicly available information at the time of analysis. The CNA has not provided a score within the CVE List.
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** DISPUTED ** 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 ca
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 misconf
Initial Analysis by NIST2/14/2019 11:30:51 AM
Action
Type
Old Value
New Value
Added
CPE Configuration
OR
*cpe:2.3:a:telegram:telegram:4.9.1:*:*:*:*:android:*:*
*cpe:2.3:a:telegram:web:0.7.0:*:*:*:*:*:*:*
Added
CVSS V2
(AV:N/AC:M/Au:N/C:P/I:P/A:P)
Added
CVSS V3
AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Added
CWE
CWE-918
Changed
Reference Type
https://misteralfa-hack.blogspot.com/2018/12/abusando-de-telegram-para-conseguir-una.html No Types Assigned
https://misteralfa-hack.blogspot.com/2018/12/abusando-de-telegram-para-conseguir-una.html Exploit, Third Party Advisory
Changed
Reference Type
https://misteralfa-hack.blogspot.com/2018/12/telegram-siempre-in-middle.html No Types Assigned
https://misteralfa-hack.blogspot.com/2018/12/telegram-siempre-in-middle.html Exploit, Third Party Advisory
CVE Modified by MITRE12/31/2018 1:29:00 PM
Action
Type
Old Value
New Value
Changed
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.
** DISPUTED ** 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 ca
Quick Info
CVE Dictionary Entry: CVE-2018-20436 NVD
Published Date: 12/24/2018 NVD
Last Modified: 03/20/2024
Source: MITRE