Network amplification in memcached (Alpine package)



Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2018-1000115
CWE-ID CWE-406
Exploitation vector Network
Public exploit Public exploit code for vulnerability #1 is available.
Vulnerable software
 memcached (Alpine package)
Operating systems & Components / Operating system package or component

Vendor Alpine Linux Development Team

Security Bulletin

This security bulletin contains one low risk vulnerability.

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

memcached (Alpine package): 1.4.33-r1

CPE2.3 External links

https://git.alpinelinux.org/aports/commit/?id=ffbc207515e6c9e7c3184fb12c1ae8b8e5596a9e
https://git.alpinelinux.org/aports/commit/?id=7d7779942382377d33d88d0d7c09b0444dfc398e
https://git.alpinelinux.org/aports/commit/?id=dcdf3ad355958a452c9942c010966d9316245cf2


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.



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