Vulnerability identifier: #VU47434

Vulnerability risk: Low

CVSSv3.1: 6.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-3535

CWE-ID: CWE-427

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
Cisco Webex Teams
Client/Desktop applications / Office applications

Vendor: Cisco Systems, Inc

Description

The vulnerability allows a local user to compromise vulnerable system.

The vulnerability exists due to incorrect handling of directory paths at run time in the loading mechanism of specific DLLs. A local user can place a specially crafted .dll file and execute arbitrary code with the privileges of another user’s account.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Cisco Webex Teams: 3.0.13464.0 - 3.0.16040.0

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External links
http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-webex-teams-dll-drsnH5AN

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Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

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