Vulnerability CVE-2018-1135

Vulnerability Name:

CVE-2018-1135 (CCN-143875)

Assigned:

2017-12-04

Published:

2018-05-25

Updated:

2018-06-25

Summary:

An issue was discovered in Moodle 3.x. Students who posted on forums and exported the posts to portfolios can download any stored Moodle file by changing the download URL.

CVSS v3 Severity:

6.5 Medium (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N)
5.7 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/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): High Integrity (I): None Availibility (A): None

6.5 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N)
5.7 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/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): High Integrity (I): None Availibility (A): None

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

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

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

Vulnerability Type:

CWE-200

Vulnerability Consequences:

Obtain Information

References:

Source: MITRE
Type: CNA
CVE-2018-1135

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

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

Source: XF
Type: UNKNOWN
moodle-cve20181135-info-disc(143875)

Source: CCN
Type: Moodle Security Advisory MSA-18-0009
Portfolio forum caller class allows a user to download any file

Source: CONFIRM
Type: Vendor Advisory
https://moodle.org/mod/forum/discuss.php?d=371201

Source: CCN
Type: Mend Vulnerability Database
CVE-2018-1135

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:201811350000000	V	CVE-2018-1135 on Ubuntu 16.04 LTS (xenial) - medium.	2018-05-25
oval:com.ubuntu.artful:def:20181135000	V	CVE-2018-1135 on Ubuntu 17.10 (artful) - medium.	2018-05-25
oval:com.ubuntu.xenial:def:20181135000	V	CVE-2018-1135 on Ubuntu 16.04 LTS (xenial) - medium.	2018-05-25
oval:com.ubuntu.disco:def:201811350000000	V	CVE-2018-1135 on Ubuntu 19.04 (disco) - medium.	2018-05-25
oval:com.ubuntu.bionic:def:20181135000	V	CVE-2018-1135 on Ubuntu 18.04 LTS (bionic) - medium.	2018-05-25
oval:com.ubuntu.cosmic:def:201811350000000	V	CVE-2018-1135 on Ubuntu 18.10 (cosmic) - medium.	2018-05-25
oval:com.ubuntu.cosmic:def:20181135000	V	CVE-2018-1135 on Ubuntu 18.10 (cosmic) - medium.	2018-05-25
oval:com.ubuntu.bionic:def:201811350000000	V	CVE-2018-1135 on Ubuntu 18.04 LTS (bionic) - medium.	2018-05-25
oval:com.ubuntu.trusty:def:20181135000	V	CVE-2018-1135 on Ubuntu 14.04 LTS (trusty) - medium.	2018-05-25

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