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A user without PR can reset user authentication failures information

Low
surli published GHSA-m738-3rc4-5xv3 Jul 1, 2021

Package

maven org.xwiki.platform:xwiki-platform-security-authentication-script (Maven)

Affected versions

> 11.6RC1

Patched versions

12.10.4, 13.0, 12.6.8

Description

Impact

The script service method used to reset the authentication failures record can be executed by any user with Script rights and does not require Programming rights as it should have.
Note that being able to reset the authentication failure record mean that an attacker with script right might use it to try performing a bruteforce attack since she'd been able to virtually deactivate the mechanism introduced to mitigate those attacks.

Patches

The problem has been patched in version 12.6.8, 12.10.4 and 13.0.

Workarounds

There's no workaround besides upgrading and being careful on which user should have Script right access. Note that any bruteforce attack on the authentication should be visible in the logs since the authentication failures are logged.

References

https://jira.xwiki.org/browse/XWIKI-18276

For more information

If you have any questions or comments about this advisory:

Severity

Low
2.0
/ 10

CVSS base metrics

Attack vector
Network
Attack complexity
High
Privileges required
High
User interaction
Required
Scope
Unchanged
Confidentiality
None
Integrity
Low
Availability
None
CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:N/I:L/A:N

CVE ID

CVE-2021-32729

Weaknesses