Vulnerability Name:

CVE-2016-2155 (CCN-111617)

Assigned:2016-03-21
Published:2016-03-21
Updated:2020-12-01
Summary:The grade-reporting feature in Singleview (aka Single View) in Moodle 2.8.x before 2.8.11, 2.9.x before 2.9.5, and 3.0.x before 3.0.3 does not consider the moodle/grade:manage capability, which allows remote authenticated users to modify "Exclude grade" settings by leveraging the Non-Editing Instructor role.
CVSS v3 Severity:4.3 Medium (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N)
3.8 Low (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:L/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): Low
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): Low
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:L/A:N)
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:L/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): 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
4.0 Medium (CCN 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
Athentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): None
Integrity (I): Partial
Availibility (A): None
Vulnerability Type:CWE-264
Vulnerability Consequences:Bypass Security
References:Source: MITRE
Type: CNA
CVE-2016-2155

Source: CONFIRM
Type: UNKNOWN
http://git.moodle.org/gw?p=moodle.git&a=search&h=HEAD&st=commit&s=MDL-52378

Source: CCN
Type: SECTRACK ID: 1035333
Moodle Bugs Let Remote Authenticated Users Obtain Potentially Sensitive Information and Bypass Security Restrictions and Remote Users Conduct Cross-Site Scripting and Cross-Site Request Forgery Attacks

Source: MLIST
Type: UNKNOWN
[oss-security] 20160321 moodle security release

Source: SECTRACK
Type: UNKNOWN
1035333

Source: XF
Type: UNKNOWN
moodle-cve20162155-sec-bypass(111617)

Source: CONFIRM
Type: Vendor Advisory
https://moodle.org/mod/forum/discuss.php?d=330177

Source: CCN
Type: Moodle Security Advisory MSA-16-0007
Non-Editing Instructor role can edit exclude checkbox in Single View

Source: CCN
Type: WhiteSource Vulnerability Database
CVE-2016-2155

Vulnerable Configuration:Configuration 1:
  • cpe:/a:moodle:moodle:3.0.2:*:*:*:*:*:*:*
  • OR cpe:/a:moodle:moodle:3.0.1:*:*:*:*:*:*:*
  • OR cpe:/a:moodle:moodle:2.8.9:*:*:*:*:*:*:*
  • OR cpe:/a:moodle:moodle:2.8.8:*:*:*:*:*:*:*
  • OR cpe:/a:moodle:moodle:2.8.1:*:*:*:*:*:*:*
  • OR cpe:/a:moodle:moodle:2.8.0:*:*:*:*:*:*:*
  • OR cpe:/a:moodle:moodle:2.9.1:*:*:*:*:*:*:*
  • OR cpe:/a:moodle:moodle:2.9.0:*:*:*:*:*:*:*
  • OR cpe:/a:moodle:moodle:2.8.10:*:*:*:*:*:*:*
  • OR cpe:/a:moodle:moodle:2.8.3:*:*:*:*:*:*:*
  • OR cpe:/a:moodle:moodle:2.8.2:*:*:*:*:*:*:*
  • OR cpe:/a:moodle:moodle:2.9.3:*:*:*:*:*:*:*
  • OR cpe:/a:moodle:moodle:2.9.2:*:*:*:*:*:*:*
  • OR cpe:/a:moodle:moodle:2.8.5:*:*:*:*:*:*:*
  • OR cpe:/a:moodle:moodle:2.8.4:*:*:*:*:*:*:*
  • OR cpe:/a:moodle:moodle:3.0:*:*:*:*:*:*:*
  • OR cpe:/a:moodle:moodle:2.9.4:*:*:*:*:*:*:*
  • OR cpe:/a:moodle:moodle:2.8.7:*:*:*:*:*:*:*
  • OR cpe:/a:moodle:moodle:2.8.6:*:*:*:*:*:*:*

    • Configuration CCN 1:
  • cpe:/a:moodle:moodle:2.8.0:*:*:*:*:*:*:*
  • OR cpe:/a:moodle:moodle:2.9.0:*:*:*:*:*:*:*
  • OR cpe:/a:moodle:moodle:3.0.0:-:*:*:*:*:*:*
  • OR cpe:/a:moodle:moodle:2.8.8:*:*:*:*:*:*:*
  • OR cpe:/a:moodle:moodle:2.9.2:*:*:*:*:*:*:*
  • OR cpe:/a:moodle:moodle:3.0.2:*:*:*:*:*:*:*
  • OR cpe:/a:moodle:moodle:2.9.4:*:*:*:*:*:*:*
  • OR cpe:/a:moodle:moodle:2.8.10:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    Oval Definitions
    Definition IDClassTitleLast Modified
    oval:com.ubuntu.bionic:def:201621550000000
    V
    		CVE-2016-2155 on Ubuntu 18.04 LTS (bionic) - low.
    2016-05-22
    oval:com.ubuntu.artful:def:20162155000
    V
    		CVE-2016-2155 on Ubuntu 17.10 (artful) - low.
    2016-05-22
    oval:com.ubuntu.trusty:def:20162155000
    V
    		CVE-2016-2155 on Ubuntu 14.04 LTS (trusty) - low.
    2016-05-22
    oval:com.ubuntu.xenial:def:201621550000000
    V
    		CVE-2016-2155 on Ubuntu 16.04 LTS (xenial) - low.
    2016-05-22
    oval:com.ubuntu.bionic:def:20162155000
    V
    		CVE-2016-2155 on Ubuntu 18.04 LTS (bionic) - low.
    2016-05-22
    oval:com.ubuntu.xenial:def:20162155000
    V
    		CVE-2016-2155 on Ubuntu 16.04 LTS (xenial) - low.
    2016-05-22
    oval:com.ubuntu.cosmic:def:20162155000
    V
    		CVE-2016-2155 on Ubuntu 18.10 (cosmic) - low.
    2016-05-22
    oval:com.ubuntu.cosmic:def:201621550000000
    V
    		CVE-2016-2155 on Ubuntu 18.10 (cosmic) - low.
    2016-05-22
    oval:com.ubuntu.precise:def:20162155000
    V
    		CVE-2016-2155 on Ubuntu 12.04 LTS (precise) - low.
    2016-05-22
    BACK
    moodle moodle 3.0.2
    moodle moodle 3.0.1
    moodle moodle 2.8.9
    moodle moodle 2.8.8
    moodle moodle 2.8.1
    moodle moodle 2.8.0
    moodle moodle 2.9.1
    moodle moodle 2.9.0
    moodle moodle 2.8.10
    moodle moodle 2.8.3
    moodle moodle 2.8.2
    moodle moodle 2.9.3
    moodle moodle 2.9.2
    moodle moodle 2.8.5
    moodle moodle 2.8.4
    moodle moodle 3.0.0
    moodle moodle 2.9.4
    moodle moodle 2.8.7
    moodle moodle 2.8.6
    moodle moodle 2.8.0
    moodle moodle 2.9.0
    moodle moodle 3.0.0 -
    moodle moodle 2.8.8
    moodle moodle 2.9.2
    moodle moodle 3.0.2
    moodle moodle 2.9.4
    moodle moodle 2.8.10