Remote code execution in Cisco Webex Teams



Published: 2018-07-19
Risk High
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2018-0387
CWE-ID CWE-20
Exploitation vector Network
Public exploit N/A
Vulnerable software
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Cisco Webex Teams
Client/Desktop applications / Office applications

Vendor Cisco Systems, Inc

Security Bulletin

This security bulletin contains one high risk vulnerability.

1) Improper input validation

EUVDB-ID: #VU13911

Risk: High

CVSSv3.1: 8.3 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2018-0387

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists in Cisco Webex Teams due to insufficient validation of user-supplied input. A remote unauthenticated attacker can trick the victim into visiting a specially crafted website and execute arbitrary code with elevated privileges.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Cisco Webex Teams: 2.0.4167

External links

http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180718-webex-teams-...


Q & A

Can this vulnerability be exploited remotely?

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

How the attacker can exploit this vulnerability?

The attacker would have to trick the victim to visit a specially crafted website or open a file.

Is there known malware, which exploits this vulnerability?

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



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