CVE-2020-5753

CVSS V2 Medium 5 CVSS V3 Medium 5.3

Description

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.

Overview

CVE ID
CVE-2020-5753

Assigner
vulnreport@tenable.com

Vulnerability Status
Analyzed

Published Version
2020-05-20T14:15:11

Last Modified Date
2022-04-07T17:56:35

Weakness Enumerations

CWE	URL
CWE-670	http://cwe.mitre.org/data/definitions/670.html

CPE Configuration (Product)

CPE	Vulnerable	Operator	Version Start	Version End
cpe:2.3:a:signal:private_messenger::::::android::*	1	OR		4.59.0
cpe:2.3:a:signal:signal::::::iphone_os::*	1	OR		3.8.1.5

CVSS Version 2

Version
2.0

Vector String
AV:N/AC:L/Au:N/C:P/I:N/A:N

Access Vector
NETWORK

Access Compatibility
LOW

Authentication
NONE

Confidentiality Impact
PARTIAL

Integrity Impact
NONE

Availability Impact
NONE

Base Score
5

Severity
MEDIUM

Exploitability Score
10

Impact Score
2.9

CVSS Version 3

Version
3.1

Vector String
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Attack Vector
NETWORK

Attack Compatibility
LOW

Privileges Required
NONE

User Interaction
NONE

Scope
UNCHANGED

Confidentiality Impact
LOW

Availability Impact
NONE

Base Score
5.3

Base Severity
MEDIUM

Exploitability Score
3.9

Impact Score
1.4

References

Reference URL	Reference Tags
https://www.tenable.com/security/research/tra-2020-33	Third Party Advisory

Sources

Source Name	Source URL
NIST	https://nvd.nist.gov/vuln/detail/CVE-2020-5753
MITRE	https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-5753

History

Created	Old Value	New Value	Data Type	Notes
2022-05-10 06:29:12				Added to TrackCVE
2022-12-04 16:43:54	2020-05-20T14:15Z	2020-05-20T14:15:11	CVE Published Date	updated
2022-12-04 16:43:54		2022-04-07T17:56:35	CVE Modified Date	updated
2022-12-04 16:43:54		Analyzed	Vulnerability Status	updated