Vulnerability CVE-2018-1136

Vulnerability Name:

CVE-2018-1136 (CCN-143876)

Assigned:

2017-12-04

Published:

2018-05-25

Updated:

2019-10-03

Summary:

An issue was discovered in Moodle 3.x. An authenticated user is allowed to add HTML blocks containing scripts to their Dashboard; this is normally not a security issue because a personal dashboard is visible to this user only. Through this security vulnerability, users can move such a block to other pages where they can be viewed by other users.

CVSS v3 Severity:

4.3 Medium (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N)
3.8 Low (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C)

Exploitability Metrics:	Attack Vector (AV): Network Attack Complexity (AC): Low Privileges Required (PR): Low User Interaction (UI): None
Scope:	Scope (S): Unchanged
Impact Metrics:	Confidentiality (C): Low Integrity (I): None Availibility (A): None

4.3 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L)
3.8 Low (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C)

Exploitability Metrics:	Attack Vector (AV): Network Attack Complexity (AC): Low Privileges Required (PR): Low User Interaction (UI): None
Scope:	Scope (S): Unchanged
Impact Metrics:	Confidentiality (C): None Integrity (I): None Availibility (A): Low

CVSS v2 Severity:

4.0 Medium (CVSS v2 Vector: AV:N/AC:L/Au:S/C:P/I:N/A:N)

Exploitability Metrics:	Access Vector (AV): Network Access Complexity (AC): Low Authentication (Au): Single_Instance
Impact Metrics:	Confidentiality (C): Partial Integrity (I): None Availibility (A): None

4.0 Medium (CCN CVSS v2 Vector: AV:N/AC:L/Au:S/C:N/I:N/A:P)

Exploitability Metrics:	Access Vector (AV): Network Access Complexity (AC): Low Athentication (Au): Single_Instance
Impact Metrics:	Confidentiality (C): None Integrity (I): None Availibility (A): Partial

Vulnerability Type:

CWE-79

Vulnerability Consequences:

Denial of Service

References:

Source: MITRE
Type: CNA
CVE-2018-1136

Source: BID
Type: Third Party Advisory, VDB Entry
104307

Source: CCN
Type: BID-104307
Moodle Multiple Security Vulnerabilities

Source: XF
Type: UNKNOWN
moodle-cve20181136-dos(143876)

Source: CCN
Type: Moodle Security Advisory MSA-18-0010
User can shift a block from Dashboard to any page

Source: CONFIRM
Type: Vendor Advisory
https://moodle.org/mod/forum/discuss.php?d=371202

Source: CCN
Type: Mend Vulnerability Database
CVE-2018-1136

Vulnerable Configuration:

Configuration 1:

cpe:/a:moodle:moodle:*:*:*:*:*:*:*:* (Version >= 3.1.0 and <= 3.1.11)

OR cpe:/a:moodle:moodle:*:*:*:*:*:*:*:* (Version >= 3.2.0 and <= 3.2.8)

OR cpe:/a:moodle:moodle:*:*:*:*:*:*:*:* (Version >= 3.3.0 and <= 3.3.5)

OR cpe:/a:moodle:moodle:*:*:*:*:*:*:*:* (Version >= 3.4.0 and <= 3.4.2)

Configuration CCN 1:

cpe:/a:moodle:moodle:3.1.0:-:*:*:*:*:*:*

OR cpe:/a:moodle:moodle:3.2.0:-:*:*:*:*:*:*

OR cpe:/a:moodle:moodle:3.3.0:-:*:*:*:*:*:*

OR cpe:/a:moodle:moodle:3.4.0:-:*:*:*:*:*:*

OR cpe:/a:moodle:moodle:3.1.11:*:*:*:*:*:*:*

OR cpe:/a:moodle:moodle:3.2.8:*:*:*:*:*:*:*

OR cpe:/a:moodle:moodle:3.3.5:*:*:*:*:*:*:*

OR cpe:/a:moodle:moodle:3.4.2:*:*:*:*:*:*:*

Denotes that component is vulnerable

Oval Definitions

Definition ID	Class	Title	Last Modified
oval:com.ubuntu.xenial:def:201811360000000	V	CVE-2018-1136 on Ubuntu 16.04 LTS (xenial) - medium.	2018-05-25
oval:com.ubuntu.artful:def:20181136000	V	CVE-2018-1136 on Ubuntu 17.10 (artful) - medium.	2018-05-25
oval:com.ubuntu.xenial:def:20181136000	V	CVE-2018-1136 on Ubuntu 16.04 LTS (xenial) - medium.	2018-05-25
oval:com.ubuntu.disco:def:201811360000000	V	CVE-2018-1136 on Ubuntu 19.04 (disco) - medium.	2018-05-25
oval:com.ubuntu.bionic:def:20181136000	V	CVE-2018-1136 on Ubuntu 18.04 LTS (bionic) - medium.	2018-05-25
oval:com.ubuntu.cosmic:def:201811360000000	V	CVE-2018-1136 on Ubuntu 18.10 (cosmic) - medium.	2018-05-25
oval:com.ubuntu.cosmic:def:20181136000	V	CVE-2018-1136 on Ubuntu 18.10 (cosmic) - medium.	2018-05-25
oval:com.ubuntu.bionic:def:201811360000000	V	CVE-2018-1136 on Ubuntu 18.04 LTS (bionic) - medium.	2018-05-25
oval:com.ubuntu.trusty:def:20181136000	V	CVE-2018-1136 on Ubuntu 14.04 LTS (trusty) - medium.	2018-05-25

BACK