Vulnerability Name:

CVE-2018-1043 (CCN-138090)

Assigned:2017-12-04
Published:2018-01-22
Updated:2019-10-03
Summary:In Moodle 3.x, the setting for blocked hosts list can be bypassed with multiple A record hostnames.
CVSS v3 Severity:6.5 Medium (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N)
5.7 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/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): None
Integrity (I): High
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:N/I:P/A:N)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): None
Integrity (I): Partial
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-noinfo
Vulnerability Consequences:Bypass Security
References:Source: MITRE
Type: CNA
CVE-2018-1043

Source: BID
Type: Third Party Advisory, VDB Entry
102769

Source: CCN
Type: BID-102769
Moodle CVE-2018-1043 Security Bypass Vulnerability

Source: XF
Type: UNKNOWN
moodle-cve20181043-sec-bypass(138090)

Source: CCN
Type: Moodle Security Advisory MSA-18-0002
Setting for blocked hosts list can be bypassed with multiple A record hostnames

Source: CONFIRM
Type: Vendor Advisory
https://moodle.org/mod/forum/discuss.php?d=364382

Source: CCN
Type: WhiteSource Vulnerability Database
CVE-2018-1043

Vulnerable Configuration:Configuration 1:
  • cpe:/a:moodle:moodle:3.2:*:*:*:*:*:*:*
  • 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:3.2.5:*:*:*:*:*:*:*
  • OR cpe:/a:moodle:moodle:3.2.6:*:*:*:*:*:*:*
  • OR cpe:/a:moodle:moodle:3.3.0:-:*:*:*:*:*:*
  • OR cpe:/a:moodle:moodle:3.3.1:*:*:*:*:*:*:*
  • OR cpe:/a:moodle:moodle:3.3.2:*:*:*:*:*:*:*
  • OR cpe:/a:moodle:moodle:3.3.3:*:*:*:*:*:*:*
  • OR cpe:/a:moodle:moodle:3.4:*:*:*:*:*:*:*

    • Configuration CCN 1:
  • 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:3.3.3:*:*:*:*:*:*:*
  • OR cpe:/a:moodle:moodle:3.2.6:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    Oval Definitions
    Definition IDClassTitleLast Modified
    oval:com.ubuntu.xenial:def:201810430000000
    V
    		CVE-2018-1043 on Ubuntu 16.04 LTS (xenial) - medium.
    2018-01-22
    oval:com.ubuntu.artful:def:20181043000
    V
    		CVE-2018-1043 on Ubuntu 17.10 (artful) - medium.
    2018-01-22
    oval:com.ubuntu.xenial:def:20181043000
    V
    		CVE-2018-1043 on Ubuntu 16.04 LTS (xenial) - medium.
    2018-01-22
    oval:com.ubuntu.disco:def:201810430000000
    V
    		CVE-2018-1043 on Ubuntu 19.04 (disco) - medium.
    2018-01-22
    oval:com.ubuntu.bionic:def:20181043000
    V
    		CVE-2018-1043 on Ubuntu 18.04 LTS (bionic) - medium.
    2018-01-22
    oval:com.ubuntu.cosmic:def:201810430000000
    V
    		CVE-2018-1043 on Ubuntu 18.10 (cosmic) - medium.
    2018-01-22
    oval:com.ubuntu.cosmic:def:20181043000
    V
    		CVE-2018-1043 on Ubuntu 18.10 (cosmic) - medium.
    2018-01-22
    oval:com.ubuntu.bionic:def:201810430000000
    V
    		CVE-2018-1043 on Ubuntu 18.04 LTS (bionic) - medium.
    2018-01-22
    oval:com.ubuntu.trusty:def:20181043000
    V
    		CVE-2018-1043 on Ubuntu 14.04 LTS (trusty) - medium.
    2018-01-22
    BACK
    moodle moodle 3.2.0
    moodle moodle 3.2.1
    moodle moodle 3.2.2
    moodle moodle 3.2.3
    moodle moodle 3.2.4
    moodle moodle 3.2.5
    moodle moodle 3.2.6
    moodle moodle 3.3.0
    moodle moodle 3.3.1
    moodle moodle 3.3.2
    moodle moodle 3.3.3
    moodle moodle 3.4.0
    moodle moodle 3.2.0 -
    moodle moodle 3.3.0
    moodle moodle 3.4.0 -
    moodle moodle 3.3.3
    moodle moodle 3.2.6