CVE-2020-25533

Published: Jan 15, 2021Modified: Nov 21, 2024

7.0

Vector

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

Exploitability: 1.0 / Impact: 5.9

Source: NVD

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 (1)

Products: Malwarebytes: Malwarebytes

1 product

Configuration A

1 vulnerable

Vulnerable Software	Affected Versions
Malwarebytes Malwarebytes	Before 4.0

Related CWEs

Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

The product contains a code sequence that can run concurrently with other code, and the code sequence requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence that is operating concurrently.

References (2)

https://wojciechregula.blog/post/learn-xpc-exploitation-part-2-say-no-to-the-pid/

Source: cve@mitre.org

ExploitPatchThird Party Advisory

https://wojciechregula.blog/post/learn-xpc-exploitation-part-2-say-no-to-the-pid/

Source: af854a3a-2127-422b-91ae-364da2661108

ExploitPatchThird Party Advisory

Timeline

No history available yet.