Description
A local privilege escalation vulnerability exists in Agnitum Outpost Internet Security 8.1 that allows an unprivileged user to execute arbitrary code with SYSTEM privileges. The flaw resides in the acs.exe component, which exposes a named pipe that accepts unauthenticated commands. By exploiting a directory traversal weakness in the pipe protocol, an attacker can instruct the service to load a malicious DLL from a user-controlled location. The DLL is then executed in the context of the privileged service.
CVSS breakdown
CVSS 4.0
Attack Vector
Local
Attack Complexity
Low
Attack Requirements
None
Privileges Required
Low
User Interaction
None
Confidentiality (Vulnerable System)
High
Integrity (Vulnerable System)
High
Availability (Vulnerable System)
High
Confidentiality (Subsequent System)
None
Integrity (Subsequent System)
None
Availability (Subsequent System)
None
Affected products
References
- EXPLOIThttps://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/windows/local/agnitum_outpost_acs.rb
- EXPLOIThttps://www.exploit-db.com/exploits/27282
- EXPLOIThttps://www.exploit-db.com/exploits/28335
- VENDOR_ADVISORYhttps://www.vulncheck.com/advisories/agnitum-outpost-internet-security-local-priv-esc