Privilege escalation in Trend Micro ServerProtect for Linux

1) Heap-based buffer overflow

EUVDB-ID: #VU48672

Risk: Low

CVSSv4.0: 5.7 [CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2020-28575

CWE-ID: CWE-122 - Heap-based Buffer Overflow

Exploit availability: No

Description

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

The vulnerability exists due to a boundary error in the "ioctlMod" function. A local administrator can pass specially crafted data to the applicatoin, trigger heap-based buffer overflow and execute arbitrary code on the target system with elevated privileges.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

ServerProtect for Linux: 3.0

CPE2.3

• cpe:2.3:a:trend_micro:serverprotect_for_linux:3.0:*:*:*:*:*:*:*

External links

https://www.zerodayinitiative.com/advisories/ZDI-20-1378/
https://success.trendmicro.com/solution/000281950

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.

How the attacker can exploit this vulnerability?

The attacker would have to send a specially crafted request to the affected application in order to exploit this vulnerability.

The attacker would have to login to the system and perform certain actions in order to exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

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