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Cisco WebEx Business Suite Site Access Control Bypass Vulnerability

Cisco-SA-20131213-CVE-2013-6964 · Medium · Published · Updated

A vulnerability in the site access control implementation of Cisco WebEx Business Suite could allow an authenticated, remote attacker to inject content from the attacker-controlled WebEx site into another WebEx site. The vulnerability is due to insufficient validation of user-supplied input. An attacker could exploit this vulnerability by using a crafted URL to inject content from the attacker-controlled WebEx site into another WebEx site. Cisco has confirmed the vulnerability in a security notice; however, software updates are not available. To exploit this vulnerability, an attacker must authenticate to the targeted device. This access requirement limits the possibility of a successful exploit. Cisco indicates through the CVSS score that functional exploit code exists; however, the code is not known to be publicly available.

Cisco advisory · CSAF JSON

Workarounds

Administrators are advised to contact the vendor regarding future updates and releases.

Administrators are advised to allow only trusted users to have network access.

Administrators may consider using IP-based access control lists (ACLs) to allow only trusted systems to access the affected systems.

Administrators are advised to monitor affected systems.

CVEsCVE-2013-6964
Cisco Bug IDsCSCul36197
CVSS ScoreBase 4.9
Base 4.9 AV:N/AC:M/Au:S/C:P/I:P/A:N/E:F/RL:U/RC:C
Product Names From Source
Cisco WebEx Event Center, Cisco WebEx Meeting Center, Cisco WebEx Sales Center, Cisco WebEx Support Center, Cisco WebEx Training Center

Related Products

Product CVE Evidence
Cisco WebEx Training Center CVE-2013-6964 Cisco OpenVuln
Cisco WebEx Support Center CVE-2013-6964 Cisco OpenVuln
Cisco WebEx Sales Center CVE-2013-6964 Cisco OpenVuln
Cisco WebEx Meeting Center CVE-2013-6964 Cisco OpenVuln
Cisco WebEx Event Center CVE-2013-6964 Cisco OpenVuln