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XWiki Identity Oauth Privilege escalation (PR)/remote code execution from login screen through unescaped URL parameter

Critical severity GitHub Reviewed Published Oct 16, 2023 in xwikisas/identity-oauth • Updated Nov 7, 2023

Package

maven com.xwiki.identity-oauth:identity-oauth-ui (Maven)

Affected versions

>= 1.0, < 1.6

Patched versions

1.6

Description

Impact

When login via the OAuth method, the identityOAuth parameters, sent in a GET request is vulnerable to XSS and XWiki syntax injection. This allows remote code execution via the groovy macro and thus affects the confidentiality, integrity and availability of the whole XWiki installation.

The vulnerability is in this part of the code.

Patches

The issue has been fixed in Identity OAuth version 1.6 by xwikisas/identity-oauth@d805d31 . The fix is in the content of the IdentityOAuth/LoginUIExtension file

Workarounds

There are no known workarounds besides upgrading.

References

Are there any links users can visit to find out more?

References

@oanalavinia oanalavinia published to xwikisas/identity-oauth Oct 16, 2023
Published by the National Vulnerability Database Oct 16, 2023
Published to the GitHub Advisory Database Oct 17, 2023
Reviewed Oct 17, 2023
Last updated Nov 7, 2023

Severity

Critical

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Changed
Confidentiality
High
Integrity
High
Availability
High

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

EPSS score

0.682%
(80th percentile)

Weaknesses

CVE ID

CVE-2023-45144

GHSA ID

GHSA-h2rm-29ch-wfmh

Source code

Credits

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