Vulnerability CVE-2021-21336

Vulnerability Name:

CVE-2021-21336 (CCN-197968)

Assigned:

2020-12-22

Published:

2021-02-26

Updated:

2022-06-03

Summary:

Products.PluggableAuthService is a pluggable Zope authentication and authorization framework. In Products.PluggableAuthService before version 2.6.0 there is an information disclosure vulnerability - everyone can list the names of roles defined in the ZODB Role Manager plugin if the site uses this plugin. The problem has been fixed in version 2.6.0. Depending on how you have installed Products.PluggableAuthService, you should change the buildout version pin to 2.6.0 and re-run the buildout, or if you used pip simply do `pip install "Products.PluggableAuthService>=2.6.0"`.

CVSS v3 Severity:

6.5 Medium (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N)
5.7 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/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): High Integrity (I): None 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:L/I:N/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:L/I:N/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): Low Integrity (I): None Availibility (A): None

CVSS v2 Severity:

4.0 Medium (CVSS v2 Vector: AV:N/AC:L/Au:S/C:P/I:N/A:N)

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

5.0 Medium (CCN CVSS v2 Vector: AV:N/AC:L/Au:N/C:P/I:N/A:N)

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

Vulnerability Type:

CWE-200

Vulnerability Consequences:

Obtain Information

References:

Source: MITRE
Type: CNA
CVE-2021-21336

Source: MLIST
Type: Mailing List, Third Party Advisory
[oss-security] 20210521 Plone security hotfix 20210518

Source: MLIST
Type: Mailing List, Third Party Advisory
[oss-security] 20210522 Re: Plone security hotfix 20210518

Source: XF
Type: UNKNOWN
prodspluggable-cve202121336-info-disc(197968)

Source: MISC
Type: Patch, Third Party Advisory
https://github.com/zopefoundation/Products.PluggableAuthService/commit/2dad81128250cb2e5d950cddc9d3c0314a80b4bb

Source: CCN
Type: GitHub Web site
Exposure of Sensitive Information to an Unauthorized Actor in Products.PluggableAuthService ZODBRoleManager

Source: CONFIRM
Type: Third Party Advisory
https://github.com/zopefoundation/Products.PluggableAuthService/security/advisories/GHSA-p75f-g7gx-2r7p

Source: MISC
Type: Product, Third Party Advisory
https://pypi.org/project/Products.PluggableAuthService/

Vulnerable Configuration:

Configuration 1:

cpe:/a:zope:products.pluggableauthservice:*:*:*:*:*:*:*:* (Version < 2.6.0)

Configuration 2:

cpe:/a:plone:plone:*:*:*:*:*:*:*:* (Version >= 5.0 and <= 5.2.4)

OR cpe:/a:plone:plone:*:*:*:*:*:*:*:* (Version >= 4.3.0 and <= 4.3.20)

Denotes that component is vulnerable

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