Cisco Jabber on Windows Protocol os command injection

Summaryinfo

A vulnerability classified as critical has been found in Cisco Jabber on Windows. Affected by this issue is some unknown functionality of the component Protocol Handler. The manipulation leads to os command injection. This vulnerability is listed as CVE-2020-3430. The attack may be initiated remotely. There is no available exploit. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Cisco Jabber on Windows (version now known). This issue affects some unknown processing of the component Protocol Handler. The manipulation with an unknown input leads to a os command injection vulnerability. Using CWE to declare the problem leads to CWE-78. The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

A vulnerability in the application protocol handling features of Cisco Jabber for Windows could allow an unauthenticated, remote attacker to execute arbitrary commands. The vulnerability is due to improper handling of input to the application protocol handlers. An attacker could exploit this vulnerability by convincing a user to click a link within a message sent by email or other messaging platform. A successful exploit could allow the attacker to execute arbitrary commands on a targeted system with the privileges of the user account that is running the Cisco Jabber client software.

The weakness was presented 09/04/2020 as cisco-sa-jabber-vY8M4KGB as confirmed advisory (Website). The advisory is shared at tools.cisco.com. The identification of this vulnerability is CVE-2020-3430 since 12/12/2019. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1202 for this issue.

Upgrading eliminates this vulnerability.

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Productinfo

Vendor

• Cisco

Name

• Jabber

License

• commercial

Website

• Vendor: https://www.cisco.com/

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