Nextcloud Contacts 3.2.0 logic error

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
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5.3$0-$5k0.00

Summaryinfo

A vulnerability was found in Nextcloud Contacts 3.2.0. It has been classified as critical. This affects an unknown part. The manipulation leads to logic error. This vulnerability is documented as CVE-2020-8181. The attack can be initiated remotely. There is not any exploit available.

Detailsinfo

A vulnerability was found in Nextcloud Contacts 3.2.0 (Cloud Software). It has been rated as critical. This issue affects an unknown code block. The manipulation with an unknown input leads to a logic error vulnerability. Using CWE to declare the problem leads to CWE-840. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

A missing file type check in Nextcloud Contacts 3.2.0 allowed a malicious user to upload any file as avatars.

The weakness was released 07/10/2020 (Website). The advisory is shared at hackerone.com. The identification of this vulnerability is CVE-2020-8181 since 01/28/2020. The exploitation is known to be easy. The attack may be initiated remotely. The requirement for exploitation is a simple authentication. Neither technical details nor an exploit are publicly available.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.3

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

NVD Base Score: 4.3
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Logic error
CWE: CWE-840
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: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

01/28/2020 🔍
07/10/2020 +164 days 🔍
07/11/2020 +1 days 🔍
07/11/2020 +0 days 🔍

Sourcesinfo

Advisory: hackerone.com
Status: Not defined

CVE: CVE-2020-8181 (🔍)
GCVE (CVE): GCVE-0-2020-8181
GCVE (VulDB): GCVE-100-157841

Entryinfo

Created: 07/11/2020 08:02
Updated: 07/11/2020 08:07
Changes: 07/11/2020 08:02 (36), 07/11/2020 08:07 (18)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Discussion

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