CVE-2020-25533
A malicious application was able to perform a privileged action within the Malwarebytes launch daemon.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.25%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 3.1
- 7.0 HIGHCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 0.25% probability · 17th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-362
- Affected
- malwarebytes/malwarebytes
- Source
- cve@mitre.org
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
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.