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Denial of Service attack through attachments

High
tmortagne published GHSA-8959-rfxh-r4j4 Jan 8, 2024

Package

maven org.xwiki.platform:xwiki-platform-distribution-war (Maven)

Affected versions

>=14.10

Patched versions

15.5.3, 15.8-rc-1, 14.10.18

Description

Impact

A user able to attach a file to a page can post a malformed TAR file by manipulating file modification times headers, which when parsed by Tika, could cause a denial of service issue via CPU consumption.

Patches

This vulnerability has been patched in XWiki 14.10.18, 15.5.3 and 15.8 RC1.

Workarounds

The workaround is to download commons-compress 1.24 and replace the one located in XWiki WEB-INF/lib/ folder.

References

https://jira.xwiki.org/browse/XCOMMONS-2796

For more information

If you have any questions or comments about this advisory:

Severity

High

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
Unchanged
Confidentiality
None
Integrity
None
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:U/C:N/I:N/A:H

CVE ID

CVE-2024-21651

Weaknesses