Auth bypass in Telegram Desktop
CVE-2020-25824
Telegram Desktop through 2.4.3 does not require passcode entry upon pushing the Export key within the Export Telegram Data wizard. The threat model is a victim who has voluntarily opened Export Wizard but is then distracted. An attacker then approaches the unattended desktop and pushes the Export key. This attacker may consequently gain access to all chat conversation and media files.
Vulnerability class: Broken Authentication
EPSS: 0.005 (42.8th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 2.4 (Low). Vector: CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.
Affected products
- Telegram Telegram_desktop
- N/a — versions n/a
Weakness classification (CWE)
References
- cve@mitre.org (Product, x_refsource_MISC)
- cve@mitre.org (Third Party Advisory, x_refsource_MISC)
- cve@mitre.org (Third Party Advisory, x_refsource_MISC, Release Notes)
- cve@mitre.org (vendor-advisory, Third Party Advisory, x_refsource_GENTOO)
Frequently asked questions
- What is CVE-2020-25824?
- CVE-2020-25824 is a low-severity vulnerability in Telegram Desktop, classified under Missing Authentication for Critical Function. CVSS score: 2.4/10. Published 2020-10-14.
- How severe is CVE-2020-25824?
- Low severity. CVSS v3 base score is 2.4 out of 10.