Vulnerability CVE-2017-12157

Vulnerability Name:

CVE-2017-12157 (CCN-132142)

Assigned:

2017-09-18

Published:

2017-09-18

Updated:

2017-09-28

Summary:

In Moodle 3.x, various course reports allow teachers to view details about users in the groups they can't access.

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

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

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

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

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

Vulnerability Type:

CWE-200

Vulnerability Consequences:

Bypass Security

References:

Source: MITRE
Type: CNA
CVE-2017-12157

Source: BID
Type: Third Party Advisory, VDB Entry
100848

Source: CCN
Type: BID-100848
Moodle CVE-2017-12157 Information Disclosure Vulnerability

Source: XF
Type: UNKNOWN
moodle-cve201712157-sec-bypass(132142)

Source: CCN
Type: Moodle Security Advisory MSA-17-0018
Course reports are not respecting group settings in courses

Source: CONFIRM
Type: Patch, Vendor Advisory
https://moodle.org/mod/forum/discuss.php?d=358586

Vulnerable Configuration:

Configuration 1:

cpe:/a:moodle:moodle:3.0:*:*:*:*:*:*:*

OR cpe:/a:moodle:moodle:3.0.0:beta:*:*:*:*:*:*

OR cpe:/a:moodle:moodle:3.0.0:rc1:*:*:*:*:*:*

OR cpe:/a:moodle:moodle:3.0.0:rc2:*:*:*:*:*:*

OR cpe:/a:moodle:moodle:3.0.0:rc3:*:*:*:*:*:*

OR cpe:/a:moodle:moodle:3.0.0:rc4:*:*:*:*:*:*

OR cpe:/a:moodle:moodle:3.0.1:*:*:*:*:*:*:*

OR cpe:/a:moodle:moodle:3.0.2:*:*:*:*:*:*:*

OR cpe:/a:moodle:moodle:3.0.3:*:*:*:*:*:*:*

OR cpe:/a:moodle:moodle:3.0.4:*:*:*:*:*:*:*

OR cpe:/a:moodle:moodle:3.0.5:*:*:*:*:*:*:*

OR cpe:/a:moodle:moodle:3.0.6:*:*:*:*:*:*:*

OR cpe:/a:moodle:moodle:3.0.7:*:*:*:*:*:*:*

OR cpe:/a:moodle:moodle:3.0.8:*:*:*:*:*:*:*

OR cpe:/a:moodle:moodle:3.0.9:*:*:*:*:*:*:*

OR cpe:/a:moodle:moodle:3.0.10:*:*:*:*:*:*:*

OR cpe:/a:moodle:moodle:3.1:*:*:*:*:*:*:*

OR cpe:/a:moodle:moodle:3.1.0:beta:*:*:*:*:*:*

OR cpe:/a:moodle:moodle:3.1.0:rc1:*:*:*:*:*:*

OR cpe:/a:moodle:moodle:3.1.0:rc2:*:*:*:*:*:*

OR cpe:/a:moodle:moodle:3.1.1:*:*:*:*:*:*:*

OR cpe:/a:moodle:moodle:3.1.2:*:*:*:*:*:*:*

OR cpe:/a:moodle:moodle:3.1.3:*:*:*:*:*:*:*

OR cpe:/a:moodle:moodle:3.1.4:*:*:*:*:*:*:*

OR cpe:/a:moodle:moodle:3.1.5:*:*:*:*:*:*:*

OR cpe:/a:moodle:moodle:3.1.6:*:*:*:*:*:*:*

OR cpe:/a:moodle:moodle:3.1.7:*:*:*:*:*:*:*

OR cpe:/a:moodle:moodle:3.2:*:*:*:*:*:*:*

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

OR cpe:/a:moodle:moodle:3.2.0:rc1:*:*:*:*:*:*

OR cpe:/a:moodle:moodle:3.2.0:rc2:*:*:*:*:*:*

OR cpe:/a:moodle:moodle:3.2.0:rc3:*:*:*:*:*:*

OR cpe:/a:moodle:moodle:3.2.0:rc4:*:*:*:*:*:*

OR cpe:/a:moodle:moodle:3.2.0:rc5:*:*:*:*:*:*

OR cpe:/a:moodle:moodle:3.2.1:*:*:*:*:*:*:*

OR cpe:/a:moodle:moodle:3.2.2:*:*:*:*:*:*:*

OR cpe:/a:moodle:moodle:3.2.3:*:*:*:*:*:*:*

OR cpe:/a:moodle:moodle:3.2.4:*:*:*:*:*:*:*

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

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

OR cpe:/a:moodle:moodle:3.3.0:rc1:*:*:*:*:*:*

OR cpe:/a:moodle:moodle:3.3.0:rc2:*:*:*:*:*:*

OR cpe:/a:moodle:moodle:3.3.0:rc3:*:*:*:*:*:*

OR cpe:/a:moodle:moodle:3.3.1:*:*:*:*:*:*:*

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:3.3.1:*:*:*:*:*:*:*

OR cpe:/a:moodle:moodle:3.1.7:*:*:*:*:*:*:*

OR cpe:/a:moodle:moodle:3.2.4:*:*:*:*:*:*:*

Denotes that component is vulnerable

Oval Definitions

Definition ID	Class	Title	Last Modified
oval:com.ubuntu.xenial:def:2017121570000000	V	CVE-2017-12157 on Ubuntu 16.04 LTS (xenial) - medium.	2017-09-18
oval:com.ubuntu.artful:def:201712157000	V	CVE-2017-12157 on Ubuntu 17.10 (artful) - medium.	2017-09-18
oval:com.ubuntu.xenial:def:201712157000	V	CVE-2017-12157 on Ubuntu 16.04 LTS (xenial) - medium.	2017-09-18
oval:com.ubuntu.disco:def:2017121570000000	V	CVE-2017-12157 on Ubuntu 19.04 (disco) - medium.	2017-09-18
oval:com.ubuntu.bionic:def:201712157000	V	CVE-2017-12157 on Ubuntu 18.04 LTS (bionic) - medium.	2017-09-18
oval:com.ubuntu.cosmic:def:2017121570000000	V	CVE-2017-12157 on Ubuntu 18.10 (cosmic) - medium.	2017-09-18
oval:com.ubuntu.cosmic:def:201712157000	V	CVE-2017-12157 on Ubuntu 18.10 (cosmic) - medium.	2017-09-18
oval:com.ubuntu.bionic:def:2017121570000000	V	CVE-2017-12157 on Ubuntu 18.04 LTS (bionic) - medium.	2017-09-18
oval:com.ubuntu.trusty:def:201712157000	V	CVE-2017-12157 on Ubuntu 14.04 LTS (trusty) - medium.	2017-09-18

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