Vulnerability identifier: #VU24667

Vulnerability risk: Medium

CVSSv3.1: 4.6 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-3139

CWE-ID: CWE-20

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Cisco Application Policy Infrastructure Controller
Web applications / Remote management & hosting panels

Vendor: Cisco Systems, Inc

Description

The vulnerability allows a remote attacker to bypass configured deny entries for specific IP ports.

The vulnerability exists in the out of band (OOB) management interface due to the configuration of specific IP table entries for which there is a programming logic error that results in the IP port being permitted. A remote attacker can send traffic to the OOB management interface and bypass configured IP table rules to drop specific IP port traffic. The attacker has no control over the configuration of the device itself.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Cisco Application Policy Infrastructure Controller: 1.0.1e - 4.2.2g

---

External links
http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iptable-bypass-GxW88XjL

---

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.