Nextcloud up to 20.0.12/21.0.4 SVG Image path traversal

CVSS Meta Temp Score
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CTI Interest Score
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7.4$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, has been found in Nextcloud up to 20.0.12/21.0.4. The affected element is an unknown function of the component SVG Image Handler. This manipulation causes path traversal. The identification of this vulnerability is CVE-2021-41178. It is possible to initiate the attack remotely. There is no exploit available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in Nextcloud up to 20.0.12/21.0.4 (Cloud Software). It has been declared as critical. Affected by this vulnerability is an unknown functionality of the component SVG Image Handler. The manipulation with an unknown input leads to a path traversal vulnerability. The CWE definition for the vulnerability is CWE-23. The product uses external input to construct a pathname that should be within a restricted directory, but it does not properly neutralize sequences such as ".." that can resolve to a location that is outside of that directory. As an impact it is known to affect confidentiality, integrity, and availability.

The weakness was shared 10/26/2021 as GHSA-jp9c-vpr3-m5rf. The advisory is shared at github.com. This vulnerability is known as CVE-2021-41178 since 09/15/2021. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1006 for this issue.

Upgrading to version 20.0.13, 21.0.5 or 22.2.0 eliminates this vulnerability. Applying a patch is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Type

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.6
VulDB Meta Temp Score: 7.4

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA Base Score: 8.8
CNA Vector (GitHub, Inc.): 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Path traversal
CWE: CWE-23 / CWE-22
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Nextcloud 20.0.13/21.0.5/22.2.0
Patch: github.com

Timelineinfo

09/15/2021 🔍
10/26/2021 +41 days 🔍
10/26/2021 +0 days 🔍
10/30/2021 +4 days 🔍

Sourcesinfo

Advisory: GHSA-jp9c-vpr3-m5rf
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2021-41178 (🔍)
GCVE (CVE): GCVE-0-2021-41178
GCVE (VulDB): GCVE-100-185389

Entryinfo

Created: 10/26/2021 13:47
Updated: 10/30/2021 12:09
Changes: 10/26/2021 13:47 (51), 10/30/2021 12:09 (2)
Complete: 🔍
Cache ID: 216::103

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