Signal
CVE-2020-5753
MEDIUM
Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
Lifecycle Timeline
1DescriptionNVD
Signal Private Messenger Android v4.59.0 and up and iOS v3.8.1.5 and up allows a remote non-contact to ring a victim's Signal phone and disclose currently used DNS server due to ICE Candidate handling before call is answered or declined.
AnalysisAI
Signal Private Messenger Android v4.59.0 and up and iOS v3.8.1.5 and up allows a remote non-contact to ring a victim's Signal phone and disclose currently used DNS server due to ICE Candidate. Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.
Technical ContextAI
This vulnerability is classified under CWE-670. Signal Private Messenger Android v4.59.0 and up and iOS v3.8.1.5 and up allows a remote non-contact to ring a victim's Signal phone and disclose currently used DNS server due to ICE Candidate handling before call is answered or declined. Affected products include: Signal Private Messenger, Signal.
RemediationAI
No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.
Signal Desktop before 6.2.0 on Windows, Linux, and macOS allows an attacker to modify conversation attachments within th
The Signal app before 5.34 for iOS allows URI spoofing via RTLO injection. Rated high severity (CVSS 7.5), this vulnerab
The Signal Private Messenger application before 4.47.7 for Android allows a caller to force a call to be answered, witho
Signal Desktop before 1.29.1 on Windows allows local users to gain privileges by creating a Trojan horse %SYSTEMDRIVE%\n
js/views/message_view.js in Open Whisper Signal (aka Signal-Desktop) before 1.10.1 allows XSS via a URL. Rated medium se
The WebRTC component in the Signal Private Messenger application through 4.47.7 for Android processes videoconferencing
Signal Messenger for Android 4.24.8 may expose private information when using "disappearing messages." If a user uses th
The image rendering component (createGenericPreview) of the Open Whisper Signal app through 2.29.0 for iOS fails to chec
Open Whisper Signal (aka Signal-Desktop) before 1.15.0-beta.10 allows information leakage. Rated medium severity (CVSS 4
Signal Desktop before 6.2.0 on Windows, Linux, and macOS allows an attacker to obtain potentially sensitive attachments
The Open Whisper Signal app before 2.23.2 for iOS allows physically proximate attackers to bypass the screen locker feat
Open Whisper Signal (aka Signal-Desktop) through 1.23.1 and the Signal Private Messenger application through 4.35.3 for
Same technique Information Disclosure
View allShare
External POC / Exploit Code
Leaving vuln.today