Vulnerability Name:

CVE-2020-1755 (CCN-233889)

Assigned:2019-11-27
Published:2020-03-16
Updated:2022-08-17
Summary:In Moodle before 3.8.2, 3.7.5, 3.6.9 and 3.5.11, X-Forwarded-For headers could be used to spoof a user's IP, in order to bypass remote address checks.
CVSS v3 Severity:5.3 Medium (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 (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
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: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-345
Vulnerability Consequences:Bypass Security
References:Source: MITRE
Type: CNA
CVE-2020-1755

Source: XF
Type: UNKNOWN
moodle-cve20201755-spoofing(233889)

Source: CCN
Type: Moodle Security Advisory MSA-20-0003
IP addresses can be spoofed using X-Forwarded-For

Vulnerable Configuration:Configuration CCN 1:
  • cpe:/a:moodle:moodle:3.5.0:*:*:*:*:*:*:*
  • OR cpe:/a:moodle:moodle:3.7.0:*:*:*:*:*:*:*
  • OR cpe:/a:moodle:moodle:3.8.1:*:*:*:*:*:*:*
  • OR cpe:/a:moodle:moodle:3.7.4:*:*:*:*:*:*:*
  • OR cpe:/a:moodle:moodle:3.6.8:*:*:*:*:*:*:*
  • OR cpe:/a:moodle:moodle:3.5.10:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    BACK
    moodle moodle 3.5.0
    moodle moodle 3.7.0
    moodle moodle 3.8.1
    moodle moodle 3.7.4
    moodle moodle 3.6.8
    moodle moodle 3.5.10