CVE-2021-20747

CVSS V2 Medium 4.3 CVSS V3 Medium 4.3
Description
Improper authorization in handler for custom URL scheme vulnerability in Retty App for Android versions prior to 4.8.13 and Retty App for iOS versions prior to 4.11.14 allows a remote attacker to lead a user to access an arbitrary website via the vulnerable App.
Overview
  • CVE ID
  • CVE-2021-20747
  • Assigner
  • vultures@jpcert.or.jp
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2021-07-14T02:15:07
  • Last Modified Date
  • 2021-07-15T19:50:14
Weakness Enumerations
CWE URL
CWE-862 http://cwe.mitre.org/data/definitions/862.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
cpe:2.3:a:retty:retty:*:*:*:*:*:android:*:* 1 OR 4.8.13
cpe:2.3:a:retty:retty:*:*:*:*:*:iphone_os:*:* 1 OR 4.11.14
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:N/AC:M/Au:N/C:P/I:N/A:N
  • Access Vector
  • NETWORK
  • Access Compatibility
  • MEDIUM
  • Authentication
  • NONE
  • Confidentiality Impact
  • PARTIAL
  • Integrity Impact
  • NONE
  • Availability Impact
  • NONE
  • Base Score
  • 4.3
  • Severity
  • MEDIUM
  • Exploitability Score
  • 8.6
  • Impact Score
  • 2.9
CVSS Version 3
  • Version
  • 3.1
  • Vector String
  • CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
  • Attack Vector
  • NETWORK
  • Attack Compatibility
  • LOW
  • Privileges Required
  • NONE
  • User Interaction
  • REQUIRED
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • LOW
  • Availability Impact
  • NONE
  • Base Score
  • 4.3
  • Base Severity
  • MEDIUM
  • Exploitability Score
  • 2.8
  • Impact Score
  • 1.4
References
Reference URL Reference Tags
https://jvn.jp/en/jp/JVN26891339/index.html Third Party Advisory
https://drive.google.com/file/d/1PBYqIsK8QxEEhGJ4SEgpY7iZw3RTTDho/view Third Party Advisory
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2021-20747
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-20747
History
Created Old Value New Value Data Type Notes
2022-05-10 07:06:52 Added to TrackCVE
2022-12-05 06:01:53 2021-07-14T02:15Z 2021-07-14T02:15:07 CVE Published Date updated
2022-12-05 06:01:53 2021-07-15T19:50:14 CVE Modified Date updated
2022-12-05 06:01:53 Analyzed Vulnerability Status updated