Multiple vulnerabilities in Trend Micro Worry-Free Business Security

1) NULL pointer dereference

EUVDB-ID: #VU57361

Risk: Medium

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2021-23139

CWE-ID: CWE-476 - NULL Pointer Dereference

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a NULL pointer dereference error in the CGI interface. A remote attacker can send a specially crafted request to the application and perform a denial of service (DoS) attack.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Worry-Free Business Security: 10 SP1 Patch 2203 - 10.0 SP1 B2190

CPE2.3

External links

https://success.trendmicro.com/solution/000289230

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

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

2) Stack-based buffer overflow

EUVDB-ID: #VU57371

Risk: Low

CVSSv4.0: 5.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2021-42012

CWE-ID: CWE-121 - Stack-based buffer overflow

Exploit availability: No

Description

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

The vulnerability exists due to a boundary error. A local user can run a specially crafted program to trigger a stack-based buffer overflow and execute arbitrary code with elevated privileges.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Worry-Free Business Security: 10 SP1 Patch 2203 - 10.0 SP1 B2190

CPE2.3

External links

https://success.trendmicro.com/solution/000289230

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.

3) Execution with unnecessary privileges

EUVDB-ID: #VU57365

Risk: Low

CVSSv4.0: 5.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2021-42104

CWE-ID: CWE-250 - Execution with Unnecessary Privileges

Exploit availability: No

Description

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

The vulnerability exists due to application performs certain unprivileged actions with elevated privileges. A local low-privileged user can abuse such behavior to execute arbitrary code with elevated privileges.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Worry-Free Business Security: 10 SP1 Patch 2203 - 10.0 SP1 B2190

CPE2.3

External links

https://success.trendmicro.com/solution/000289230

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.

4) Execution with unnecessary privileges

EUVDB-ID: #VU57369

Risk: Low

CVSSv4.0: 5.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2021-42108

CWE-ID: CWE-250 - Execution with Unnecessary Privileges

Exploit availability: No

Description

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

The vulnerability exists due to application performs certain unprivileged actions with elevated privileges. A local low-privileged user can abuse such behavior to execute arbitrary code with elevated privileges.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Worry-Free Business Security: 10 SP1 Patch 2203 - 10.0 SP1 B2190

CPE2.3

External links

https://success.trendmicro.com/solution/000289230

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.

5) Execution with unnecessary privileges

EUVDB-ID: #VU57366

Risk: Low

CVSSv4.0: 5.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2021-42105

CWE-ID: CWE-250 - Execution with Unnecessary Privileges

Exploit availability: No

Description

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

The vulnerability exists due to application performs certain unprivileged actions with elevated privileges. A local low-privileged user can abuse such behavior to execute arbitrary code with elevated privileges.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Worry-Free Business Security: 10 SP1 Patch 2203 - 10.0 SP1 B2190

CPE2.3

External links

https://success.trendmicro.com/solution/000289230

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.

6) Execution with unnecessary privileges

EUVDB-ID: #VU58451

Risk: Low

CVSSv4.0: 5.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2021-44021

CWE-ID: CWE-250 - Execution with Unnecessary Privileges

Exploit availability: No

Description

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

The vulnerability exists due to application performs certain unprivileged actions with elevated privileges. A local low-privileged user can abuse such behavior to execute arbitrary code with elevated privileges.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Worry-Free Business Security: 10 SP1 Patch 2203 - 10.0 SP1 B2190

CPE2.3

External links

https://success.trendmicro.com/solution/000289230
https://www.zerodayinitiative.com/advisories/ZDI-21-1366/

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.

7) Execution with unnecessary privileges

EUVDB-ID: #VU58449

Risk: Low

CVSSv4.0: 5.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2021-44019

CWE-ID: CWE-250 - Execution with Unnecessary Privileges

Exploit availability: No

Description

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

The vulnerability exists due to application performs certain unprivileged actions with elevated privileges. A local low-privileged user can abuse such behavior to execute arbitrary code with elevated privileges.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Worry-Free Business Security: 10 SP1 Patch 2203 - 10.0 SP1 B2190

CPE2.3

External links

https://www.zerodayinitiative.com/advisories/ZDI-21-1364/
https://success.trendmicro.com/solution/000289230

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.

8) Execution with unnecessary privileges

EUVDB-ID: #VU58450

Risk: Low

CVSSv4.0: 5.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2021-44020

CWE-ID: CWE-250 - Execution with Unnecessary Privileges

Exploit availability: No

Description

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

The vulnerability exists due to application performs certain unprivileged actions with elevated privileges. A local low-privileged user can abuse such behavior to execute arbitrary code with elevated privileges.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Worry-Free Business Security: 10 SP1 Patch 2203 - 10.0 SP1 B2190

CPE2.3

External links

https://success.trendmicro.com/solution/000289230
https://www.zerodayinitiative.com/advisories/ZDI-21-1365/

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.

Risk	Medium
Patch available	YES
Number of vulnerabilities	8
CVE-ID	CVE-2021-23139 CVE-2021-42012 CVE-2021-42104 CVE-2021-42108 CVE-2021-42105 CVE-2021-44021 CVE-2021-44019 CVE-2021-44020
CWE-ID	CWE-476 CWE-121 CWE-250
Exploitation vector	Network
Public exploit	N/A
Vulnerable software	Worry-Free Business Security Client/Desktop applications / Software for system administration
Vendor	Trend Micro