Multiple vulnerabilities in Cisco WebEx Meeting Center



Published: 2017-12-01
Risk Low
Patch available YES
Number of vulnerabilities 2
CVE-ID CVE-2017-12366
CVE-2017-12297
CWE-ID CWE-79
CWE-20
Exploitation vector Network
Public exploit N/A
Vulnerable software
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Cisco WebEx Meeting Center
Client/Desktop applications / Multimedia software

Vendor Cisco Systems, Inc

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Cross-site scripting

EUVDB-ID: #VU9492

Risk: Low

CVSSv3.1: 5.3 [CVSS:3.1/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-2017-12366

CWE-ID: CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Exploit availability: No

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.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Cisco WebEx Meeting Center: 32.6

External links

http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20171129-webex5


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

2) Improper input validation

EUVDB-ID: #VU9493

Risk: Low

CVSSv3.1: 3.6 [CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:N/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2017-12297

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a remote authenticated attacker to initiate connections to arbitrary hosts.

The vulnerability exists due to insufficient access control for HTTP traffic directed to the Cisco WebEx Meeting Center. A remote attacker can send a malicious URL to the Cisco WebEx Meeting Center and connect to arbitrary hosts.

Mitigation

The vulnerability is addressed in the following versions: 32.8, 32.6, 31.20.

Vulnerable software versions

Cisco WebEx Meeting Center: 30SP7 - 32.7

External links

http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20171129-wmc


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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