Opencast up to 9.9/10.5 Web Interface file access

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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7.9$0-$5k0.00

Summaryinfo

A vulnerability categorized as problematic has been discovered in Opencast up to 9.9/10.5. This issue affects some unknown processing of the component Web Interface Handler. The manipulation results in file access. This vulnerability is known as CVE-2021-43821. It is possible to launch the attack remotely. No exploit is available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability classified as critical has been found in Opencast up to 9.9/10.5. Affected is an unknown functionality of the component Web Interface Handler. The manipulation with an unknown input leads to a file access vulnerability. CWE is classifying the issue as CWE-552. The product makes files or directories accessible to unauthorized actors, even though they should not be. This is going to have an impact on confidentiality, integrity, and availability.

The weakness was published 12/15/2021 as GHSA-59g4-hpg3-3gcp. The advisory is shared for download at github.com. This vulnerability is traded as CVE-2021-43821 since 11/16/2021. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1083.

Upgrading to version 9.10, 10.6 or 11.0 eliminates this vulnerability. Applying the patch 65c46b9d3e8f045c544881059923134571897764 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.

VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.1
VulDB Meta Temp Score: 7.9

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

CNA Base Score: 9.9
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: File access
CWE: CWE-552 / CWE-425
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: Opencast 9.10/10.6/11.0
Patch: 65c46b9d3e8f045c544881059923134571897764

Timelineinfo

11/16/2021 🔍
12/15/2021 +29 days 🔍
12/15/2021 +0 days 🔍
12/17/2021 +2 days 🔍

Sourcesinfo

Product: github.com

Advisory: GHSA-59g4-hpg3-3gcp
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2021-43821 (🔍)
GCVE (CVE): GCVE-0-2021-43821
GCVE (VulDB): GCVE-100-188280

Entryinfo

Created: 12/15/2021 06:32
Updated: 12/17/2021 18:42
Changes: 12/15/2021 06:32 (51), 12/17/2021 18:35 (2), 12/17/2021 18:42 (1)
Complete: 🔍
Cache ID: 216::103

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