Vulnerability Name:

CVE-2015-3273 (CCN-104543)

Assigned:2015-07-13
Published:2015-07-13
Updated:2020-12-01
Summary:mod/forum/post.php in Moodle 2.9.x before 2.9.1 does not consider the mod/forum:canposttomygroups capability before authorizing "Post a copy to all groups" actions, which allows remote authenticated users to bypass intended access restrictions by leveraging per-group authorization.
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
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-264
Vulnerability Consequences:Bypass Security
References:Source: MITRE
Type: CNA
CVE-2015-3273

Source: CONFIRM
Type: UNKNOWN
http://git.moodle.org/gw?p=moodle.git&a=search&h=HEAD&st=commit&s=MDL-50220

Source: MLIST
Type: UNKNOWN
[oss-security] 20150713 moodle security announcements

Source: SECTRACK
Type: UNKNOWN
1032877

Source: XF
Type: UNKNOWN
moodle-cve20153273-sec-bypass(104543)

Source: CONFIRM
Type: Vendor Advisory
https://moodle.org/mod/forum/discuss.php?d=316663

Source: CCN
Type: Moodle Security Advisory MSA-15-0027
Capability 'mod/forum:canposttomygroups' is not respected when using 'Post a copy to all groups' in forum

Source: CCN
Type: WhiteSource Vulnerability Database
CVE-2015-3273

Vulnerable Configuration:Configuration 1:
  • cpe:/a:moodle:moodle:2.9.0:*:*:*:*:*:*:*

    • Configuration CCN 1:
  • cpe:/a:moodle:moodle:2.7.0:-:*:*:*:*:*:*
  • OR cpe:/a:moodle:moodle:2.8.0:*:*:*:*:*:*:*
  • OR cpe:/a:moodle:moodle:2.9.0:*:*:*:*:*:*:*
  • OR cpe:/a:moodle:moodle:2.8.6:*:*:*:*:*:*:*
  • OR cpe:/a:moodle:moodle:2.7.8:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    Oval Definitions
    Definition IDClassTitleLast Modified
    oval:com.ubuntu.precise:def:20153273000
    V
    		CVE-2015-3273 on Ubuntu 12.04 LTS (precise) - low.
    2016-02-22
    oval:com.ubuntu.trusty:def:20153273000
    V
    		CVE-2015-3273 on Ubuntu 14.04 LTS (trusty) - low.
    2016-02-22
    BACK
    moodle moodle 2.9.0
    moodle moodle 2.7.0 -
    moodle moodle 2.8.0
    moodle moodle 2.9.0
    moodle moodle 2.8.6
    moodle moodle 2.7.8