Published: 2020-10-27
Risk Low
Patch available YES
Number of vulnerabilities 2
CVE ID CVE-2020-27015
CVE-2020-27014
CWE ID CWE-200
CWE-367
Exploitation vector Local
Public exploit N/A
Vulnerable software
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Antivirus for Mac

Client/Desktop applications /
Antivirus software/Personal firewalls
Vendor Trend Micro

Security Advisory

1) Information disclosure

Risk: Low

CVSSv3:
5.2 [CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N/E:U/RL:O/RC:C] [PCI]

CVE-ID:
CVE-2020-27015

CWE-ID:
CWE-200 – Information Exposure

Exploit availability:
No

Description

The vulnerability allows a local user to gain access to potentially sensitive information.

The vulnerability exists due to the error message that includes sensitive information within the KERedirect kext. A local administrator can gain unauthorized access to sensitive information on the system.

Mitigation

Install updates from vendor’s website.

Vulnerable software versions

Antivirus for Mac:
-, 2020 (v10.x)

CPE

External links

https://www.zerodayinitiative.com/advisories/ZDI-20-1286/
https://helpcenter.trendmicro.com/en-us/article/TMKA-09975

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

2) Time-of-check Time-of-use (TOCTOU) Race Condition

Risk: Low

CVSSv3:
7.1 [CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C] [PCI]

CVE-ID:
CVE-2020-27014

CWE-ID:
CWE-367 – Time-of-check Time-of-use (TOCTOU) Race Condition

Exploit availability:
No

Description

The vulnerability allows a local user to escalate privileges on the system.


The vulnerability exists due to the lack of proper locking when performing operations on an object within the KERedirect kext. A local administrator can escalate privileges and execute arbitrary code in the context of the kernel.

Mitigation

Install updates from vendor’s website.

Vulnerable software versions

Antivirus for Mac:
-, 2020 (v10.x)

CPE

External links

https://www.zerodayinitiative.com/advisories/ZDI-20-1285/
https://helpcenter.trendmicro.com/en-us/article/TMKA-09974

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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