Current Description
When you visit a page where you need to login, Plone 2.5-5.1rc1 sends you to the login form with a 'came_from' parameter set to the previous url. After you login, you get redirected to the page you tried to view before. An attacker might try to abuse this by letting you click on a specially crafted link. You would login, and get redirected to the site of the attacker, letting you think that you are still on the original Plone site. Or some javascript of the attacker could be executed. Most of these types of attacks are already blocked by Plone, using the `isURLInPortal` check to make sure we only redirect to a page on the same Plone site. But a few more ways of tricking Plone into accepting a malicious link were discovered, and fixed with this hotfix.
Source:
MITRE
Description Last Modified:
01/03/2018
View Analysis Description
Analysis Description
When you visit a page where you need to login, Plone 2.5-5.1rc1 sends you to the login form with a 'came_from' parameter set to the previous url. After you login, you get redirected to the page you tried to view before. An attacker might try to abuse this by letting you click on a specially crafted link. You would login, and get redirected to the site of the attacker, letting you think that you are still on the original Plone site. Or some javascript of the attacker could be executed. Most of these types of attacks are already blocked by Plone, using the `isURLInPortal` check to make sure we only redirect to a page on the same Plone site. But a few more ways of tricking Plone into accepting a malicious link were discovered, and fixed with this hotfix.
Source:
MITRE
Description Last Modified:
01/03/2018
Impact
CVSS v3.0 Severity and Metrics:
Base Score:
6.1 MEDIUM
Vector:
AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
(V3 legend)
Impact Score:
2.7
Exploitability Score:
2.8
Attack Vector (AV):
Network
Attack Complexity (AC):
Low
Privileges Required (PR):
None
User Interaction (UI):
Required
Scope (S):
Changed
Confidentiality (C):
Low
Integrity (I):
Low
Availability (A):
None
CVSS v2.0 Severity and Metrics:
Base Score:
5.8 MEDIUM
Vector:
(AV:N/AC:M/Au:N/C:P/I:P/A:N)
(V2 legend)
Impact Subscore:
4.9
Exploitability Subscore:
8.6
Access Vector (AV):
Network
Access Complexity (AC):
Medium
Authentication (AU):
None
Confidentiality (C):
Partial
Integrity (I):
Partial
Availability (A):
None
Additional Information:
Victim must voluntarily interact with attack mechanism
Allows unauthorized disclosure of information
Allows unauthorized modification
References to Advisories, Solutions, and Tools
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Technical Details
Vulnerability Type
(View All)
- URL Redirection to Untrusted Site ('Open Redirect') (CWE-601)
Change History
1 change record found
- show changes
Initial Analysis -
1/18/2018 5:47:37 PM
| Action |
Type |
Old Value |
New Value |
| Added |
CPE Configuration |
|
Record truncated, showing 500 of 3207 characters.
View Entire Change Record
OR
*cpe:2.3:a:plone:plone:2.5.5:*:*:*:*:*:*:*
*cpe:2.3:a:plone:plone:3.3:*:*:*:*:*:*:*
*cpe:2.3:a:plone:plone:3.3.1:*:*:*:*:*:*:*
*cpe:2.3:a:plone:plone:3.3.2:*:*:*:*:*:*:*
*cpe:2.3:a:plone:plone:3.3.3:*:*:*:*:*:*:*
*cpe:2.3:a:plone:plone:3.3.4:*:*:*:*:*:*:*
*cpe:2.3:a:plone:plone:3.3.5:*:*:*:*:*:*:*
*cpe:2.3:a:plone:plone:3.3.6:*:*:*:*:*:*:*
*cpe:2.3:a:plone:plone:4.0:*:*:*:*:*:*:*
*cpe:2.3:a:plone:plone:4.0.1:*:*:*:*:*:*:*
*cpe:2.3:a:plone |
| Added |
CVSS V2 |
|
(AV:N/AC:M/Au:N/C:P/I:P/A:N) |
| Added |
CVSS V3 |
|
AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
| Added |
CWE |
|
CWE-601 |
| Changed |
Reference Type |
https://plone.org/security/hotfix/20171128/open-redirection-on-login-form No Types Assigned |
https://plone.org/security/hotfix/20171128/open-redirection-on-login-form Vendor Advisory |