Vulnerability identifier: #VU29459

Vulnerability risk: Low

CVSSv3.1: 5.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N/E:P/RL:O/RC:C]

CVE-ID: CVE-2020-3282

CWE-ID: CWE-79

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Unified Communications Manager (CallManager)
Server applications / Remote management servers, RDP, SSH
Cisco Unified Communications Manager Session Management Edition
Server applications / Remote management servers, RDP, SSH
Cisco Unified Communications Manager IM & Presence Service
Client/Desktop applications / Other client software
Cisco Unity Connection
Client/Desktop applications / Messaging software

Vendor: Cisco Systems, Inc

Description

The disclosed vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.

The vulnerability exists due to insufficient sanitization of user-supplied data in the web-based management interface. A remote attacker can trick the victim to follow a specially crafted link and execute arbitrary HTML and script code in user's browser in context of vulnerable website.

Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Unified Communications Manager (CallManager): 10.5.2 - 12.5.1

Cisco Unified Communications Manager Session Management Edition: 10.5.2 - 12.5.1

Cisco Unified Communications Manager IM & Presence Service: 10.5.2 - 12.5.1

Cisco Unity Connection: 10.5.2 - 12.5.1

---

External links
http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-cucm-cuc-imp-xss-OWuSYAp

---

Q & A

Can this vulnerability be exploited remotely?

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

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.