Intrusion PreventionNAT.SlipStreaming.Security.Bypass
Description
This indicates an attack attempt to exploit a Security Bypass Vulnerability in SIP/H.323 ALG (Application Level Gateway)
The vulnerability is due to a flaw in some ALG implementations that allows an attacker to bypass NAT/firewall with a crafted request. An attack can exploit the vulnerability by enticing a user to visit a crafted webpage. Successful exploitation will lead to remote access of any TCP/UDP service bound on a victim machine.
Affected Products
Any NAT/firewall that supports ALG (Application Level Gateways)
Impact
System Compromise: Remote attackers can gain control of vulnerable systems.
Recommended Actions
Refer to NAT/firewall vendor for patch or upgrade
Telemetry
Coverage
| IPS (Regular DB) | |
| IPS (Extended DB) |
Version Updates
| Date | Version | Detail |
|---|---|---|
| 2021-03-04 | 18.030 | Sig Added |
| 2021-02-10 | 17.014 | Sig Added |
| 2020-11-17 | 16.963 | Default_action:pass:drop |
| 2020-11-12 | 16.961 |
| ID | 49596 |
| Created | Nov 05, 2020 |
| Updated | Apr 17, 2023 |
| Risk |
|
| CVE ID | CVE-2020-28041 |
| Exploit Prediction Score | 6.77% |
| Default Action | drop |
| Active | |
| Affected OS | Windows, Linux, BSD, Solaris, MacOS |
| Affected App | Other |