Denial of service in Cisco Network Convergence System 1000 Series

1) Data handling

EUVDB-ID: #VU12382

Risk: Low

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

CVE-ID: CVE-2018-0286

CWE-ID: CWE-19 - Data Handling

Exploit availability: No

Description

The vulnerability allows a remote unauthenticated attacker to cause DoS condition on the target system.

The weakness exists in the netconf interface due to improper handling of malformed requests processed by the netconf process. A remote attacker can send specially crafted requests and cause the service to crash.

Mitigation

Update to versions 6.5.1.15i.MGBL, 6.4.2.1i.MGBL or 6.3.3.2i.MGBL.

Vulnerable software versions

Cisco Network Convergence System 1000 Series: 6.3.1 - 6.5.1

External links

http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180502-iosxr

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.