critical
9.3
CWE
119
Advisory Published
Updated

CVE-2017-6753: Buffer Overflow

First published: Tue Jul 25 2017(Updated: )

A vulnerability in Cisco WebEx browser extensions for Google Chrome and Mozilla Firefox could allow an unauthenticated, remote attacker to execute arbitrary code with the privileges of the affected browser on an affected system. This vulnerability affects the browser extensions for Cisco WebEx Meetings Server, Cisco WebEx Centers (Meeting Center, Event Center, Training Center, and Support Center), and Cisco WebEx Meetings when they are running on Microsoft Windows. The vulnerability is due to a design defect in the extension. An attacker who can convince an affected user to visit an attacker-controlled web page or follow an attacker-supplied link with an affected browser could exploit the vulnerability. If successful, the attacker could execute arbitrary code with the privileges of the affected browser. The following versions of the Cisco WebEx browser extensions are affected: Versions prior to 1.0.12 of the Cisco WebEx extension on Google Chrome, Versions prior to 1.0.12 of the Cisco WebEx extension on Mozilla Firefox. Cisco Bug IDs: CSCvf15012 CSCvf15020 CSCvf15030 CSCvf15033 CSCvf15036 CSCvf15037.

Credit: ykramarz@cisco.com

Affected SoftwareAffected VersionHow to fix
Cisco Webex Events Center=t30_base
Cisco Webex Events Center=t31_base
Cisco Webex Events Center=t32_base
Cisco WebEx Meeting Center=t30_base
Cisco WebEx Meeting Center=t31_base
Cisco WebEx Meeting Center=t32_base
Cisco Webex Meetings Client=t30_base
Cisco Webex Meetings Server Software=1.1_base
Cisco Webex Meetings Server Software=1.5.1.6
Cisco Webex Meetings Server Software=1.5.1.131
Cisco Webex Meetings Server Software=1.5_base
Cisco Webex Meetings Server Software=2.0.1.107
Cisco Webex Meetings Server Software=2.0_base
Cisco Webex Meetings Server Software=2.5.1.5
Cisco Webex Meetings Server Software=2.5.1.29
Cisco Webex Meetings Server Software=2.5.99.2
Cisco Webex Meetings Server Software=2.5_base
Cisco Webex Meetings Server Software=2.6.0
Cisco Webex Meetings Server Software=2.6.1.39
Cisco Webex Meetings Server Software=2.7.1
Cisco Webex Meetings Server Software=2.7_base
Cisco Webex Meetings Server Software=2.8_base
Cisco Webex Meetings Server Software=mr2
Cisco Webex Meetings Server Software=mr3
Cisco Webex Meetings Server Software=mr4
Cisco Webex Meetings Server Software=mr5
Cisco Webex Meetings Server Software=mr6
Cisco Webex Meetings Server Software=mr7
Cisco Webex Meetings Server Software=mr8
Cisco Webex Meetings Server Software=mr9
Cisco Webex Meetings Server 2.0 Mr8 Patch=1
Cisco Webex Meetings Server Software=1
Cisco Webex Meetings Server Software=2
Cisco Webex Meetings Server Software=3
Cisco Webex Meetings Server Software=mr1
Cisco Webex Meetings Server Software=mr2
Cisco Webex Meetings Server Software=mr3
Cisco Webex Meetings Server Software=mr4
Cisco Webex Meetings Server Software=mr5
Cisco Webex Meetings Server Software=mr6
Cisco Webex Meetings Server Software=1
Cisco Webex Meetings Server Software=1
Cisco Webex Meetings Server=1
Cisco Webex Meetings Server=2
Cisco Webex Meetings Server=3
Cisco Webex Meetings Server=4
Cisco Webex Meetings Server Software=mr1
Cisco Webex Meetings Server Software=mr2
Cisco Webex Meetings Server Software=mr3
Cisco Webex Meetings Server Software=1
Cisco Webex Meetings Server Software=1
Cisco Webex Meetings Server Software=1
Cisco Webex Meetings Server Software=2
Cisco Webex Meetings Server Software=mr1
Cisco Webex Meetings Server Software=mr2
Cisco Webex Meetings Server=1
Cisco Webex Meetings Server=1
Cisco Webex Support Center=t30_base
Cisco Webex Support Center=t31_base
Cisco Webex Support Center=t32_base
Cisco WebEx Training Center=t30_base
Cisco WebEx Training Center=t31_base
Cisco WebEx Training Center=t32_base

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Reference Links

Frequently Asked Questions

  • What is the severity of CVE-2017-6753?

    CVE-2017-6753 has a high severity rating as it allows remote attackers to execute arbitrary code on affected systems.

  • How do I fix CVE-2017-6753?

    To mitigate the CVE-2017-6753 vulnerability, users should update their Cisco WebEx extensions for Chrome and Firefox to the latest version.

  • Which products are affected by CVE-2017-6753?

    CVE-2017-6753 affects various Cisco WebEx products including WebEx Events Center, Meeting Center, and Webex Meetings Client.

  • Who can exploit CVE-2017-6753?

    CVE-2017-6753 can be exploited by unauthenticated remote attackers targeting the vulnerable WebEx browser extensions.

  • Is CVE-2017-6753 being actively exploited in the wild?

    There have been indications that CVE-2017-6753 may be actively exploited, making immediate attention and patching critical.

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