critical
9.3
CWE
20
Advisory Published
Updated

CVE-2018-15420: Cisco Webex Network Recording Player and Cisco Webex Player Remote Code Execution Vulnerabilities

First published: Fri Oct 05 2018(Updated: )

A vulnerability in the Cisco Webex Network Recording Player for Microsoft Windows and the Cisco Webex Player for Microsoft Windows could allow an attacker to execute arbitrary code on an affected system. The vulnerability exist because the affected software improperly validates Advanced Recording Format (ARF) and Webex Recording Format (WRF) files. An attacker could exploit this vulnerability by sending a user a malicious ARF or WRF file via a link or an email attachment and persuading the user to open the file by using the affected software. A successful exploit could allow the attacker to execute arbitrary code on the affected system.

Credit: ykramarz@cisco.com

Affected SoftwareAffected VersionHow to fix
Cisco Webex Meetings Online<1.3.37
Cisco WebEx Meetings Server=2.5-maintenance_release2_patch1
Cisco WebEx Meetings Server=2.5-maintenance_release5_patch1
Cisco WebEx Meetings Server=2.5-maintenance_release6_patch2
Cisco WebEx Meetings Server=2.5-maintenance_release6_patch3
Cisco WebEx Meetings Server=2.5-maintenance_release6_patch4
Cisco WebEx Meetings Server=2.5.1.29
Cisco WebEx Meetings Server=2.6
Cisco WebEx Meetings Server=2.6-maintenance_release1_patch1
Cisco WebEx Meetings Server=2.6-maintenance_release2_patch1
Cisco WebEx Meetings Server=2.6-maintenance_release3_patch1
Cisco WebEx Meetings Server=2.6-maintenance_release3_patch2
Cisco WebEx Meetings Server=2.7
Cisco WebEx Meetings Server=2.7-base
Cisco WebEx Meetings Server=2.7-maintenance_release1_patch1
Cisco WebEx Meetings Server=2.7-maintenance_release2_patch1
Cisco WebEx Meetings Server=2.7.1
Cisco WebEx Meetings Server=2.8
Cisco WebEx Meetings Server=2.8-base
Cisco Webex Business Suite 32<32.15.30
Cisco Webex Business Suite 33<33.3

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Reference Links

Frequently Asked Questions

  • What is the vulnerability ID of this Cisco Webex vulnerability?

    The vulnerability ID is CVE-2018-15420.

  • How severe is the CVE-2018-15420 vulnerability?

    The severity of the CVE-2018-15420 vulnerability is critical with a severity score of 7.8.

  • Which software is affected by the CVE-2018-15420 vulnerability?

    The Cisco Webex Network Recording Player for Microsoft Windows and the Cisco Webex Player for Microsoft Windows are affected by the CVE-2018-15420 vulnerability.

  • How can an attacker exploit the CVE-2018-15420 vulnerability?

    An attacker can exploit the CVE-2018-15420 vulnerability to execute arbitrary code on an affected system.

  • Is there a fix available for the CVE-2018-15420 vulnerability?

    Yes, Cisco has released a security advisory with patches and mitigations for the CVE-2018-15420 vulnerability.

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