CVEvulnerability
CVE-2020-25533
7.0 HIGH
Official page ↗
- Status
- Modified
- Published
- 2021-01-15
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 7.0 HIGH — CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
- CVSS 2.0 ([email protected])
- 6.9 MEDIUM — AV:L/AC:M/Au:N/C:C/I:C/A:C
- Weaknesses
- CWE-362
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.
Affected configurations
• malwarebytes malwarebytes (< 4.0)
Related
Weakness · CWE (1)
- CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization weakness
References
- https://wojciechregula.blog/post/learn-xpc-exploitation-part-2-say-no-to-the-pid/ Exploit, Patch, Third Party Advisory
- https://wojciechregula.blog/post/learn-xpc-exploitation-part-2-say-no-to-the-pid/ Exploit, Patch, Third Party Advisory