Cisco Webex Teams Client on Windows resource consumption

Summaryinfo

A vulnerability identified as problematic has been detected in Cisco Webex Teams Client on Windows. This vulnerability affects unknown code. Performing a manipulation results in resource consumption. This vulnerability is identified as CVE-2020-3131. The attack can be initiated remotely. There is not any exploit available. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in Cisco Webex Teams Client on Windows (Unified Communication Software) (affected version not known). It has been classified as problematic. This affects some unknown functionality. The manipulation with an unknown input leads to a resource consumption vulnerability. CWE is classifying the issue as CWE-400. The product does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources. This is going to have an impact on availability. The summary by CVE is:

[CVE-2020-3131_su] A vulnerability in the Cisco Webex Teams client for Windows could allow an authenticated, remote attacker to cause the client to crash, resulting in a denial of service (DoS) condition. The attacker needs a valid developer account to exploit this vulnerability. The vulnerability is due to insufficient input validation when processing received adaptive cards. The attacker could exploit this vulnerability by sending an adaptive card with malicious content to an existing user of the Cisco Webex Teams client for Windows. A successful exploit could allow the attacker to cause the targeted user's client to crash continuously.

The weakness was released 01/26/2020 as cisco-sa-webex-cards-dos-FWzNc as confirmed advisory (Website). The advisory is shared at tools.cisco.com. This vulnerability is uniquely identified as CVE-2020-3131 since 12/12/2019. It is possible to initiate the attack remotely. A authentication is required for exploitation. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1499 for this issue.

Upgrading eliminates this vulnerability.

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Productinfo

Type

• Unified Communication Software

Vendor

• Cisco

Name

• Webex Teams Client

License

• commercial

Website

• Vendor: https://www.cisco.com/

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Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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