Cisco Webex Meetings Desktop App on Windows Update Service os command injection

CVSS Meta Temp Score
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CTI Interest Score
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6.9$0-$5k0.00

Summaryinfo

A vulnerability described as problematic has been identified in Cisco Webex Meetings Desktop App on Windows. Affected by this vulnerability is an unknown functionality of the component Update Service. The manipulation results in os command injection. This vulnerability was named CVE-2018-15442. The attack needs to be approached locally. In addition, an exploit is available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability classified as problematic has been found in Cisco Webex Meetings Desktop App on Windows (Unified Communication Software) (unknown version). Affected is an unknown code block of the component Update Service. The manipulation with an unknown input leads to a os command injection vulnerability. CWE is classifying the issue as CWE-78. The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

A vulnerability in the update service of Cisco Webex Meetings Desktop App for Windows could allow an authenticated, local attacker to execute arbitrary commands as a privileged user. The vulnerability is due to insufficient validation of user-supplied parameters. An attacker could exploit this vulnerability by invoking the update service command with a crafted argument. An exploit could allow the attacker to run arbitrary commands with SYSTEM user privileges. While the CVSS Attack Vector metric denotes the requirement for an attacker to have local access, administrators should be aware that in Active Directory deployments, the vulnerability could be exploited remotely by leveraging the operating system remote management tools.

The bug was discovered 10/24/2018. The weakness was presented 10/24/2018 as cisco-sa-20181024-webex-inject as confirmed advisory (Website). The advisory is shared for download at tools.cisco.com. This vulnerability is traded as CVE-2018-15442 since 08/17/2018. The attack needs to be approached locally. The requirement for exploitation is a authentication. Technical details are unknown but a public exploit is available. The MITRE ATT&CK project declares the attack technique as T1202.

The exploit is shared for download at exploit-db.com. It is declared as highly functional. The vulnerability scanner Nessus provides a plugin with the ID 119888 (Cisco Webex Meetings Desktop App < 33.6.4 Command Injection Vulnerability), which helps to determine the existence of the flaw in a target environment. It is assigned to the family CGI abuses and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 371285 (Cisco Webex Meetings Desktop App Update Service Command Injection Vulnerability (cisco-sa-20181024-webex-injection)).

Upgrading eliminates this vulnerability. A possible mitigation has been published 2 months after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Exploit-DB (45695), Tenable (119888) and SecurityFocus (BID 105734†). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.0
VulDB Meta Temp Score: 6.9

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.8
NVD Vector: 🔍

CNA Base Score: 7.8
CNA Vector (Cisco Systems, Inc.): 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Os command injection
CWE: CWE-78 / CWE-77 / CWE-74
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Access: Public
Status: Highly functional
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 119888
Nessus Name: Cisco Webex Meetings Desktop App < 33.6.4 Command Injection Vulnerability
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

MetaSploit ID: webexec_command.rb
MetaSploit Name: WebEx Remote Command Execution Utility
MetaSploit File: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Timelineinfo

08/17/2018 🔍
10/24/2018 +68 days 🔍
10/24/2018 +0 days 🔍
10/24/2018 +0 days 🔍
10/24/2018 +0 days 🔍
10/25/2018 +1 days 🔍
11/27/2018 +33 days 🔍
12/27/2018 +30 days 🔍
10/19/2025 +2488 days 🔍

Sourcesinfo

Vendor: cisco.com

Advisory: cisco-sa-20181024-webex-inject
Status: Confirmed

CVE: CVE-2018-15442 (🔍)
GCVE (CVE): GCVE-0-2018-15442
GCVE (VulDB): GCVE-100-125928
SecurityFocus: 105734 - Cisco Webex Meetings Desktop App CVE-2018-15442 Local Command Injection Vulnerability
SecurityTracker: 1041942

scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 10/25/2018 06:55
Updated: 10/19/2025 07:44
Changes: 10/25/2018 06:55 (75), 04/06/2020 14:28 (8), 05/30/2023 19:54 (4), 05/30/2023 20:02 (12), 10/19/2025 07:44 (14)
Complete: 🔍
Cache ID: 216::103

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