CVE-2020-25533

CVSS V2 Medium 6.9 CVSS V3 High 7
Description
An issue was discovered in Malwarebytes before 4.0 on macOS. A malicious application was able to perform a privileged action within the Malwarebytes launch daemon. The privileged service improperly validated XPC connections by relying on the PID instead of the audit token. An attacker can construct a situation where the same PID is used for running two different programs at different times, by leveraging a race condition during crafted use of posix_spawn.
Overview
  • CVE ID
  • CVE-2020-25533
  • Assigner
  • cve@mitre.org
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2021-01-15T22:15:13
  • Last Modified Date
  • 2021-01-26T21:47:55
Weakness Enumerations
CWE URL
CWE-362 http://cwe.mitre.org/data/definitions/362.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
cpe:2.3:a:malwarebytes:malwarebytes:*:*:*:*:-:macos:*:* 1 OR 4.0
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:L/AC:M/Au:N/C:C/I:C/A:C
  • Access Vector
  • LOCAL
  • Access Compatibility
  • MEDIUM
  • Authentication
  • NONE
  • Confidentiality Impact
  • COMPLETE
  • Integrity Impact
  • COMPLETE
  • Availability Impact
  • COMPLETE
  • Base Score
  • 6.9
  • Severity
  • MEDIUM
  • Exploitability Score
  • 3.4
  • Impact Score
  • 10
CVSS Version 3
  • Version
  • 3.1
  • Vector String
  • CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
  • Attack Vector
  • LOCAL
  • Attack Compatibility
  • HIGH
  • Privileges Required
  • LOW
  • User Interaction
  • NONE
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • HIGH
  • Availability Impact
  • HIGH
  • Base Score
  • 7
  • Base Severity
  • HIGH
  • Exploitability Score
  • 1
  • Impact Score
  • 5.9
References
Reference URL Reference Tags
https://wojciechregula.blog/post/learn-xpc-exploitation-part-2-say-no-to-the-pid/ Exploit Patch Third Party Advisory
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2020-25533
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-25533
History
Created Old Value New Value Data Type Notes
2022-05-10 07:26:01 Added to TrackCVE
2022-12-05 20:18:29 2021-01-15T22:15Z 2021-01-15T22:15:13 CVE Published Date updated
2022-12-05 20:18:29 2021-01-26T21:47:55 CVE Modified Date updated
2022-12-05 20:18:29 Analyzed Vulnerability Status updated