Nextcloud Mail Application up to 1.10.3 Image information disclosure

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 (≈)
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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.
3.4$0-$5k0.00

Summaryinfo

A vulnerability was found in Nextcloud Mail Application up to 1.10.3. It has been declared as problematic. Affected by this vulnerability is an unknown functionality of the component Image Handler. The manipulation results in information disclosure. This vulnerability is cataloged as CVE-2021-39220. The attack may be launched remotely. There is no exploit available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as problematic, was found in Nextcloud Mail Application up to 1.10.3 (Cloud Software). Affected is some unknown processing of the component Image Handler. The manipulation with an unknown input leads to a information disclosure vulnerability. CWE is classifying the issue as CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. This is going to have an impact on confidentiality.

The weakness was shared 10/26/2021 as GHSA-6q9v-wm8r-rcv5. The advisory is available at github.com. This vulnerability is traded as CVE-2021-39220 since 08/16/2021. Successful exploitation requires user interaction by the victim. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1592 by the MITRE ATT&CK project.

Upgrading to version 1.10.4 or 1.11.0 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.

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Productinfo

Type

Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 3.5
VulDB Meta Temp Score: 3.4

VulDB Base Score: 3.5
VulDB Temp Score: 3.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA Base Score: 3.5
CNA Vector (GitHub, Inc.): 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Information disclosure
CWE: CWE-200 / CWE-284 / CWE-266
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: Mail Application 1.10.4/1.11.0
Patch: github.com

Timelineinfo

08/16/2021 🔍
10/26/2021 +71 days 🔍
10/26/2021 +0 days 🔍
10/30/2021 +4 days 🔍

Sourcesinfo

Advisory: GHSA-6q9v-wm8r-rcv5
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2021-39220 (🔍)
GCVE (CVE): GCVE-0-2021-39220
GCVE (VulDB): GCVE-100-185394

Entryinfo

Created: 10/26/2021 13:57
Updated: 10/30/2021 13:20
Changes: 10/26/2021 13:57 (52), 10/30/2021 13:15 (2), 10/30/2021 13:20 (7)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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