OnionShare 2.3.0/2.3.1/2.3.2/2.3.3 Receive unrestricted upload

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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7.0$0-$5k0.00

Summaryinfo

A vulnerability classified as critical was found in OnionShare 2.3.0/2.3.1/2.3.2/2.3.3. This impacts an unknown function of the component Receive Handler. Such manipulation leads to unrestricted upload. This vulnerability is traded as CVE-2021-41868. The attack may be launched remotely. There is no exploit available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability, which was classified as critical, has been found in OnionShare 2.3.0/2.3.1/2.3.2/2.3.3. Affected by this issue is an unknown function of the component Receive Handler. The manipulation with an unknown input leads to a unrestricted upload vulnerability. Using CWE to declare the problem leads to CWE-434. The product allows the attacker to upload or transfer files of dangerous types that can be automatically processed within the product's environment. Impacted is confidentiality, integrity, and availability.

The weakness was shared 10/04/2021. The advisory is shared for download at github.com. This vulnerability is handled as CVE-2021-41868 since 10/04/2021. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1608.002.

Upgrading to version 2.4 eliminates this vulnerability. The upgrade is hosted for download at github.com.

Once again VulDB remains the best source for vulnerability data.

Productinfo

Name

Version

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 7.0

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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

Exploitinginfo

Class: Unrestricted upload
CWE: CWE-434 / 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: OnionShare 2.4

Timelineinfo

10/04/2021 🔍
10/04/2021 +0 days 🔍
10/04/2021 +0 days 🔍
10/08/2021 +4 days 🔍

Sourcesinfo

Product: github.com

Advisory: github.com
Status: Confirmed

CVE: CVE-2021-41868 (🔍)
GCVE (CVE): GCVE-0-2021-41868
GCVE (VulDB): GCVE-100-183764

Entryinfo

Created: 10/04/2021 20:03
Updated: 10/08/2021 16:09
Changes: 10/04/2021 20:03 (39), 10/08/2021 16:09 (1)
Complete: 🔍
Cache ID: 216::103

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