ON24 ScreenShare up to 1.x on macOS Built-In HTTP server DesktopScreenShare.app 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.
5.1$0-$5k0.00

Summaryinfo

A vulnerability was found in ON24 ScreenShare up to 1.x on macOS. It has been classified as problematic. Affected by this issue is some unknown functionality of the file DesktopScreenShare.app of the component Built-In HTTP server. Performing a manipulation results in information disclosure. This vulnerability is known as CVE-2021-34823. Remote exploitation of the attack is possible. No exploit is available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability, which was classified as problematic, was found in ON24 ScreenShare up to 1.x on macOS. This affects an unknown code block of the file DesktopScreenShare.app of the component Built-In HTTP server. 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 published 08/14/2021. The advisory is shared at trustwave.com. This vulnerability is uniquely identified as CVE-2021-34823. Technical details are known, but no exploit is available. MITRE ATT&CK project uses the attack technique T1592 for this issue.

Upgrading to version 2.0 eliminates this vulnerability.

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Productinfo

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.1

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
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: 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: ScreenShare 2.0

Timelineinfo

06/17/2021 🔍
08/14/2021 +58 days 🔍
08/14/2021 +0 days 🔍
08/18/2021 +4 days 🔍

Sourcesinfo

Advisory: trustwave.com
Status: Confirmed

CVE: CVE-2021-34823 (🔍)
GCVE (CVE): GCVE-0-2021-34823
GCVE (VulDB): GCVE-100-180885

Entryinfo

Created: 08/14/2021 10:57
Updated: 08/18/2021 14:04
Changes: 08/14/2021 10:57 (40), 08/18/2021 14:04 (2)
Complete: 🔍
Cache ID: 216::103

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