Red Hat update for Memcached

1) Network amplification

EUVDB-ID: #VU11194

Risk: Low

CVSSv4.0: 6.9 [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:A/U:Clear]

CVE-ID: CVE-2018-1000115

CWE-ID: CWE-406 - Insufficient Control of Network Message Volume (Network Amplification)

Exploit availability: Yes

Description

The vulnerability allows a remote unauthenticated attacker to conduct DDoS amplification attack against the target system.

The weakness exists due to insufficient control of network message volume. A remote attacker can scan for affected, insecure Memcached servers via UDP port 11211,spoof UDP packets, send a specially crafted request, trigger a response and conduct DDoS amplification attack.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Red Hat OpenStack for IBM Power: 12

Red Hat OpenStack: 12

CPE2.3

• cpe:2.3:a:red_hat:red_hat_openstack_for_ibm_power:12:*:*:*:*:*:*:*
• cpe:2.3:a:red_hat:red_hat_openstack:12:*:*:*:*:*:*:*

External links

https://access.redhat.com/errata/RHSA-2018:2331

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. However, a fully functional exploit for this vulnerability is available.