CVE-2018-17613

Telegram Desktop (aka tdesktop) 1.3.16 alpha, when "Use proxy" is enabled, sends credentials and application data in cleartext over the SOCKS5 protocol

published September 28, 2018

CVSS
โ€”
EPSS
2%
Percentile
76.0
In the wild
Unconfirmed
What it is

โš ๏ธ When using a proxy, your Telegram Desktop credentials are sent in cleartext! Think of it as a postcard with your private messages written on it, just waiting for someone to read. ๐Ÿ“ฌ Imagine sending an important letter without an envelope โ€” everything is visible for anyone who comes across it! That's what happens when Telegram Desktop sends data over SOCKS5 while the proxy is enabled; it exposes your sensitive information as easily as an open book. An attacker with access to the network could intercept these cleartext credentials and application data, allowing them to gain unauthorized access to your Telegram account. This could lead to privacy breaches and data theft โ€” a nightmare scenario for anyone concerned about their personal information!

Put simply

Imagine sending an important letter without an envelope โ€” everything is visible for anyone who comes across it! That's what happens when Telegram Desktop sends data over SOCKS5 while the proxy is enabled; it exposes your sensitive information as easily as an open book. This vulnerability in Telegram Desktop (version 1.3.16 alpha) occurs because it transmits sensitive data unencrypted over the SOCKS5 proxy protocol when the "Use proxy" option is enabled, compromising user security.

What to do

An attacker with access to the network could intercept these cleartext credentials and application data, allowing them to gain unauthorized access to your Telegram account. This could lead to privacy breaches and data theft โ€” a nightmare scenario for anyone concerned about their personal information! To protect your data, avoid using the SOCKS5 proxy feature in this version of Telegram Desktop until a fix is released. Keep an eye on updates from Telegram for a patched version that addresses this issue, and consider using a VPN for secure connections in the meantime. You've got this! Stay vigilant and keep your data safe while we wait for a fix. ๐Ÿ›ก๏ธ

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.01625 ยท 76.0th percentile
Published
2018-09-28T10:00Z
EPSS history
Timeline
  • 28 SEP 10:00Z
    Telegram Desktop (aka tdesktop) 1.3.16 alpha, when "Use proxy" is enabled, sends credentials and application data in cleartext over the SOCKS5 protocol
    cvelistv5