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Vulnerability of Cisco Unified Communications Manager IM and Presence Service: Cross Site Request Forgery

Synthesis of the vulnerability 

An attacker can trigger a Cross Site Request Forgery of Cisco Unified Communications Manager IM and Presence Service, in order to force the victim to perform operations.
Vulnerable products: Cisco CUCM.
Severity of this weakness: 2/4.
Creation date: 21/06/2018.
Références of this bulletin: CERTFR-2018-AVI-298, cisco-sa-20180620-ucmim-ps-csrf, CSCvi55878, CVE-2018-0363, VIGILANCE-VUL-26478.

Description of the vulnerability 

The Cisco Unified Communications Manager IM and Presence Service product offers a web service.

However, the origin of queries is not checked. They can for example originate from an image included in an HTML document.

An attacker can therefore trigger a Cross Site Request Forgery of Cisco Unified Communications Manager IM and Presence Service, in order to force the victim to perform operations.
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This computer vulnerability announce impacts software or systems such as Cisco CUCM.

Our Vigil@nce team determined that the severity of this cybersecurity bulletin is medium.

The trust level is of type confirmed by the editor, with an origin of internet client.

An attacker with a expert ability can exploit this threat alert.

Solutions for this threat 

Cisco Unified Communications Manager IM and Presence Service: solution CSCvi55878.
The solution is described on the Cisco site:
  https://tools.cisco.com/bugsearch/bug/CSCvi55878
  https://tools.cisco.com/quickview/bug/CSCvi55878
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