A vulnerability was found in Cisco Webex Business Suite (Unified Communication Software) (version now known) and classified as problematic. Affected by this issue is some unknown processing of the component MyWebex. The manipulation with an unknown input leads to a cross site scripting vulnerability. Using CWE to declare the problem leads to CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. Impacted is integrity. CVE summarizes:

A vulnerability in the MyWebex component of Cisco Webex Business Suite could allow an unauthenticated, remote attacker to conduct a cross-site scripting (XSS) attack. The vulnerability is due to insufficient validation of user-supplied input. An attacker could exploit this vulnerability by convincing a user to click a crafted URL. To exploit this vulnerability, the attacker may provide a link that directs a user to a malicious site and use misleading language or instructions to persuade the user to follow the provided link.

The bug was discovered 01/09/2019. The weakness was disclosed 01/10/2019 with Cisco as cisco-sa-20190109-webex-bs-xss as confirmed advisory (Website). The advisory is available at tools.cisco.com. This vulnerability is handled as CVE-2018-15461 since 08/17/2018. The attack may be launched remotely. No form of authentication is required for exploitation. The technical details are unknown and an exploit is not available. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 06/26/2023). This vulnerability is assigned to T1059.007 by the MITRE ATT&CK project.

The vulnerability was handled as a non-public zero-day exploit for at least 1 days. During that time the estimated underground price was around $5k-$25k.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at SecurityFocus (BID 106505†). If you want to get best quality of vulnerability data, you may have to visit VulDB.

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• Unified Communication Software

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• Cisco

Name

• Webex Business Suite

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• commercial

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