Memcached 1.5.5 UDP Support Message input validation

CVSS Meta Temp Score
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CTI Interest Score
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6.3$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic has been found in Memcached 1.5.5. This issue affects some unknown processing of the component UDP Support. This manipulation as part of Message causes input validation. This vulnerability is registered as CVE-2018-1000115. Remote exploitation of the attack is possible. Furthermore, an exploit is available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability classified as problematic was found in Memcached 1.5.5. Affected by this vulnerability is some unknown processing of the component UDP Support. The manipulation as part of a Message leads to a input validation vulnerability. The CWE definition for the vulnerability is CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. As an impact it is known to affect availability. The summary by CVE is:

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.

The bug was discovered 03/01/2018. The weakness was published 03/05/2018 with Qihoo 360 Vulcan Team (Website). The advisory is shared at exploit-db.com. This vulnerability is known as CVE-2018-1000115 since 03/05/2018. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details are unknown but a public exploit is available.

After immediately, there has been an exploit disclosed. It is possible to download the exploit at exploit-db.com. It is declared as highly functional. The vulnerability was handled as a non-public zero-day exploit for at least 4 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 110386 (Debian DSA-4218-1 : memcached - security update), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Debian Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 236797 (Red Hat Update for Red Hat OpenStack Platform director (RHSA-2018:1627)).

Upgrading eliminates this vulnerability. A possible mitigation has been published 4 months after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Exploit-DB (44264), Tenable (110386) and SecurityFocus (BID 103603†). Similar entries are available at VDB-110554, VDB-113070, VDB-113073 and VDB-114440. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
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CVSSv3info

VulDB Meta Base Score: 6.4
VulDB Meta Temp Score: 6.3

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

Class: Input validation
CWE: CWE-20
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Highly functional
Download: 🔍

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Nessus ID: 110386
Nessus Name: Debian DSA-4218-1 : memcached - security update
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 63321
OpenVAS Name: Memcached Amplification Attack (Memcrashed)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

MetaSploit ID: memcached_amp.rb
MetaSploit Name: Memcached Stats Amplification Scanner
MetaSploit File: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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Patch: github.com

Timelineinfo

03/01/2018 🔍
03/05/2018 +4 days 🔍
03/05/2018 +0 days 🔍
03/05/2018 +0 days 🔍
03/05/2018 +0 days 🔍
03/05/2018 +0 days 🔍
03/06/2018 +1 days 🔍
04/10/2018 +35 days 🔍
06/06/2018 +57 days 🔍
06/07/2018 +1 days 🔍
09/01/2024 +2277 days 🔍

Sourcesinfo

Product: github.com

Advisory: RHSA-2018:1593
Organization: Qihoo 360 Vulcan Team
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2018-1000115 (🔍)
GCVE (CVE): GCVE-0-2018-1000115
GCVE (VulDB): GCVE-100-114085

OVAL: 🔍

SecurityFocus: 103603 - Microsoft Internet Explorer Scripting Engine CVE-2018-1000 Information Disclosure Vulnerability

scip Labs: https://www.scip.ch/en/?labs.20161013
See also: 🔍

Entryinfo

Created: 03/06/2018 07:59
Updated: 09/01/2024 01:13
Changes: 03/06/2018 07:59 (84), 01/14/2020 19:49 (7), 02/16/2023 23:25 (5), 09/01/2024 01:13 (15)
Complete: 🔍
Cache ID: 216:333:103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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