Zoom Client Message UDP Message input validation

CVSS Meta Temp Score
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CTI Interest Score
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8.2$0-$5k0.00

Summaryinfo

A vulnerability has been found in Zoom Client and classified as critical. Affected by this vulnerability is an unknown functionality of the component Message Handler. Performing a manipulation as part of UDP Message results in input validation. This vulnerability is reported as CVE-2018-15715. The attack is possible to be carried out remotely. No exploit exists. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in Zoom Client (Unified Communication Software) (the affected version unknown). It has been classified as critical. This affects an unknown part of the component Message Handler. The manipulation as part of a UDP Message leads to a input validation vulnerability. CWE is classifying the issue as CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

Zoom clients on Windows (before version 4.1.34814.1119), Mac OS (before version 4.1.34801.1116), and Linux (2.4.129780.0915 and below) are vulnerable to unauthorized message processing. A remote unauthenticated attacker can spoof UDP messages from a meeting attendee or Zoom server in order to invoke functionality in the target client. This allows the attacker to remove attendees from meetings, spoof messages from users, or hijack shared screens.

The bug was discovered 11/29/2018. The weakness was disclosed 11/30/2018 (Website). It is possible to read the advisory at tenable.com. This vulnerability is uniquely identified as CVE-2018-15715 since 08/22/2018. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. The technical details are unknown and an exploit is not publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 119242 (Zoom Client for Meetings 4.x < 4.1.34814.1119 Message Spoofing Vulnerability), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Windows and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 371344 (Zoom Message Spoofing Vulnerability).

Upgrading eliminates this vulnerability. A possible mitigation has been published even before and not after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (119242). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

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License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.5
VulDB Meta Temp Score: 8.4

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

NVD Base Score: 9.8
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Input validation
CWE: CWE-20
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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Nessus ID: 119242
Nessus Name: Zoom Client for Meetings 4.x < 4.1.34814.1119 Message Spoofing Vulnerability
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

08/22/2018 🔍
11/28/2018 +98 days 🔍
11/28/2018 +0 days 🔍
11/29/2018 +1 days 🔍
11/30/2018 +1 days 🔍
11/30/2018 +0 days 🔍
12/01/2018 +1 days 🔍
04/16/2020 +502 days 🔍

Sourcesinfo

Advisory: tenable.com
Status: Not defined

CVE: CVE-2018-15715 (🔍)
GCVE (CVE): GCVE-0-2018-15715
GCVE (VulDB): GCVE-100-127347

Entryinfo

Created: 12/01/2018 20:11
Updated: 04/16/2020 14:40
Changes: 12/01/2018 20:11 (65), 04/16/2020 14:40 (3)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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