Multiple vulnerabilities in Cisco WebEx Meetings Server

Published: 2017-11-02 14:12:39
Severity Low
Patch available YES
Number of vulnerabilities 2
CVSSv2 3.7 (AV:N/AC:L/Au:N/C:P/I:N/A:N/E:U/RL:OF/RC:C)
3.2 (AV:N/AC:M/Au:N/C:N/I:P/A:N/E:U/RL:OF/RC:C)
CVSSv3 4.6 [CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]
5.2 [CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N/E:U/RL:O/RC:C]
CVE ID CVE-2017-12295
CVE-2017-12294
CWE ID CWE-200
CWE-79
Exploitation vector Network
Public exploit Not available
Vulnerable software Cisco WebEx Meetings Server
Vulnerable software versions Cisco WebEx Meetings Server 2.8
Cisco WebEx Meetings Server 2.6
Vendor URL Cisco Systems, Inc
Advisory type Public

Security Advisory

1) Information disclosure

Description

The vulnerability allows a remote attacker to obtain potentially sensitive information on the target system.

The weakness exists in Cisco WebEx Meetings Server due to the HTTP header reply from the Cisco WebEx Meetings Server to the client, which could include internal network information that should be restricted. A remote attacker can attempt to use the HTTP protocol, access the data in the HTTP responses from the Cisco WebEx Meetings Server and discover sensitive data about the application.

Remediation

Update to version 2.8.1.1019 or 2.8.1.1023.

External links

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20171101-webex2

2) Cross-site scripting

Description

The disclosed vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.

The vulnerability exists due to insufficient sanitization of user-supplied data. A remote attacker can trick the victim to follow a specially crafted link and execute arbitrary HTML and script code in user's browser in context of vulnerable website.

Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.

Remediation

Update to version 2.8.1.1034.

External links

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20171101-webex1

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