Memcached version 1.5.5 contains an Insufficient Control of Network Message Volume (Network Amplification, CWE-406) vulnerability in the UDP support of the memcached server that can result in denial of service via network flood (traffic amplification of 1:50,000 has been reported by reliable sources). This attack appear to be exploitable via network connectivity to port 11211 UDP. This vulnerability appears to have been fixed in 1.5.6 due to the disabling of the UDP protocol by default.
Published 2018-03-05 14:29:00
Updated 2021-08-04 17:15:36
Source MITRE
View at NVD,   CVE.org
Vulnerability category: Denial of service

Threat overview for CVE-2018-1000115

Top countries where our scanners detected CVE-2018-1000115
Top open port discovered on systems with this issue 11211
IPs affected by CVE-2018-1000115 20
Threat actors abusing to this issue? Yes
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*Directly or indirectly through your vendors, service providers and 3rd parties. Powered by attack surface intelligence from SecurityScorecard.

Exploit prediction scoring system (EPSS) score for CVE-2018-1000115

96.39%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 100 %
Percentile, the proportion of vulnerabilities that are scored at or less

Metasploit modules for CVE-2018-1000115

  • Memcached Stats Amplification Scanner
    Disclosure Date: 2018-02-27
    First seen: 2020-04-26
    auxiliary/scanner/memcached/memcached_amp
    This module can be used to discover Memcached servers which expose the unrestricted UDP port 11211. A basic "stats" request is executed to check if an amplification attack is possible against a third party. Authors: - Marek Majkowski - xistence <xistence@0x9

CVSS scores for CVE-2018-1000115

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
5.0
MEDIUM AV:N/AC:L/Au:N/C:N/I:N/A:P
10.0
2.9
NIST
7.5
HIGH CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
3.9
3.6
NIST

CWE ids for CVE-2018-1000115

  • The product does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources.
    Assigned by: nvd@nist.gov (Primary)

References for CVE-2018-1000115

Products affected by CVE-2018-1000115

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