#VU13860 Improper input validation in Cisco FireSIGHT


Published: 2018-07-11 | Updated: 2018-07-13

Vulnerability identifier: #VU13860

Vulnerability risk: Low

CVSSv3.1: 6.4 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2018-0384

CWE-ID: CWE-20

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Cisco FireSIGHT
Server applications / Remote management servers, RDP, SSH

Vendor: Cisco Systems, Inc

Description

The vulnerability allows a remote attacker to bypass security restrictions on the target system.

The vulnerability exists in the detection engine due to an error when handling of TCP packets that are received out of order when a TCP SYN retransmission is issued. A remote attacker can send a maliciously crafted connection and bypass a URL-based access control policy that is configured to block traffic for the affected system.

Mitigation
Update to version 6.2.2.3, 6.2.3.

Vulnerable software versions

Cisco FireSIGHT: 6.0 - 6.2.2


External links
http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180711-firesight-ur...


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.


Latest bulletins with this vulnerability