Denial of service in Cisco Network Convergence System 1000 Series

1) Data handling

EUVDB-ID: #VU12382

Risk: Low

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear]

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

CPE2.3

• cpe:2.3:h:cisco_systems:cisco_network_convergence_system_1000_series:6.3.1:*:*:*:*:*:*:*
• cpe:2.3:h:cisco_systems:cisco_network_convergence_system_1000_series:6.3.2:*:*:*:*:*:*:*
• cpe:2.3:h:cisco_systems:cisco_network_convergence_system_1000_series:6.5.1:*:*:*:*:*:*:*

External links

https://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.