Vulnerability CVE-2021-43264

Vulnerability Name:

CVE-2021-43264 (CCN-212681)

Assigned:

2021-09-24

Published:

2021-09-24

Updated:

2021-11-09

Summary:

In Mahara before 20.04.5, 20.10.3, 21.04.2, and 21.10.0, adjusting the path component for the page help file allows attackers to bypass the intended access control for HTML files via directory traversal. It replaces the - character with the / character.

CVSS v3 Severity:

3.3 Low (CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N)
3.0 Low (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N/E:P/RL:O/RC:C)

Exploitability Metrics:	Attack Vector (AV): Local 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

3.7 Low (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N)
3.4 Low (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N/E:P/RL:O/RC:C)

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

CVSS v2 Severity:

2.1 Low (CVSS v2 Vector: AV:L/AC:L/Au:N/C:P/I:N/A:N)

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

2.6 Low (CCN CVSS v2 Vector: AV:N/AC:H/Au:N/C:P/I:N/A:N)

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

Vulnerability Type:

CWE-22

Vulnerability Consequences:

Obtain Information

References:

Source: MITRE
Type: CNA
CVE-2021-43264

Source: CCN
Type: Launchpad Bug #1944979
Path traversal leads to unauthenticated HTML file disclosure

Source: MISC
Type: Exploit, Third Party Advisory
https://bugs.launchpad.net/mahara/+bug/1944979

Source: XF
Type: UNKNOWN
mahara-cve202143264-dir-trav(212681)

Source: CCN
Type: Mahara Web site
Mahara

Source: MISC
Type: Vendor Advisory
https://mahara.org/interaction/forum/topic.php?id=8954

Vulnerable Configuration:

Configuration 1:

cpe:/a:mahara:mahara:*:*:*:*:*:*:*:* (Version >= 20.04.0 and < 20.04.5)

OR cpe:/a:mahara:mahara:*:*:*:*:*:*:*:* (Version >= 20.10.0 and < 20.10.3)

OR cpe:/a:mahara:mahara:*:*:*:*:*:*:*:* (Version >= 21.04.0 and < 21.04.2)

Configuration CCN 1:

cpe:/a:mahara:mahara:20.04:rc1:*:*:*:*:*:*

OR cpe:/a:mahara:mahara:20.10:*:*:*:*:*:*:*

Denotes that component is vulnerable

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