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Vulnerability of Cisco Unified Communications Manager: file upload via ELM

Synthesis of the vulnerability 

An authenticated attacker can upload a malicious file via ELM on Cisco Unified Communications Manager, in order for example to upload a Trojan.
Impacted systems: Cisco CUCM.
Severity of this alert: 2/4.
Creation date: 14/11/2013.
Références of this alert: BID-63733, CSCui58222, CVE-2013-6688, VIGILANCE-VUL-13781.

Description of the vulnerability 

The Cisco Enterprise License Manager service has a file upload interface.

However, an attacker can manipulate the path, so the file is stored outside the storage directory.

An authenticated attacker can therefore upload a malicious file via ELM on Cisco Unified Communications Manager, in order for example to upload a Trojan.
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This threat note impacts software or systems such as Cisco CUCM.

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

The trust level is of type confirmed by the editor, with an origin of user account.

An attacker with a expert ability can exploit this vulnerability note.

Solutions for this threat 

Cisco Unified Communications Manager: solution CSCui58222.
The solution CSCui58222 is available:
  http://tools.cisco.com/Support/BugToolKit/search/getBugDetails.do?method=fetchBugDetails&bugId=CSCui58222
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