VDB-171235 · CVE-2021-21379 · GCVE-0-2021-21379

XWiki up to 11.10.10/12.6.2/12.7 Wiki Macro permissions

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
5.7	$0-$5k	0.00

Summaryinfo

A vulnerability, which was classified as critical, has been found in XWiki up to 11.10.10/12.6.2/12.7. This impacts an unknown function of the component Wiki Macro Handler. This manipulation causes permissions. This vulnerability is registered as CVE-2021-21379. Remote exploitation of the attack is possible. No exploit is available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability classified as critical was found in XWiki up to 11.10.10/12.6.2/12.7 (Content Management System). Affected by this vulnerability is an unknown functionality of the component Wiki Macro Handler. The manipulation with an unknown input leads to a permissions vulnerability. The CWE definition for the vulnerability is CWE-281. The product does not preserve permissions or incorrectly preserves permissions when copying, restoring, or sharing objects, which can cause them to have less restrictive permissions than intended. As an impact it is known to affect confidentiality, integrity, and availability.

The weakness was published 03/13/2021. It is possible to read the advisory at github.com. This vulnerability is known as CVE-2021-21379. It demands that the victim is doing some kind of user interaction. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1222 according to MITRE ATT&CK.

Upgrading to version 11.10.11, 12.6.3 or 12.8-rc-1 eliminates this vulnerability.

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

Content Management System

Name

XWiki

Version

License

open-source

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.0
VulDB Meta Temp Score: 5.8

VulDB Base Score: 6.5
VulDB Temp Score: 6.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.4
NVD Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Permissions
CWE: CWE-281 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: XWiki 11.10.11/12.6.3/12.8-rc-1

Timelineinfo

12/22/2020 🔍
03/13/2021 +81 days 🔍
03/13/2021 +0 days 🔍
04/01/2021 +19 days 🔍

Sourcesinfo

Advisory: github.com
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2021-21379 (🔍)
GCVE (CVE): GCVE-0-2021-21379
GCVE (VulDB): GCVE-100-171235

Entryinfo

Created: 03/13/2021 10:12
Updated: 04/01/2021 09:21
Changes: 03/13/2021 10:12 (38), 04/01/2021 09:17 (6), 04/01/2021 09:21 (19)
Complete: 🔍
Cache ID: 216::103