Denial of service in Cisco Unified Contact Center Enterprise

1) Race condition

EUVDB-ID: #VU25473

Risk: Medium

CVSSv3.1: 5.9 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-3163

CWE-ID: CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to the affected software improperly manages resources when processing inbound Live Data traffic. A remote attacker can send multiple crafted Live Data packets to an affected device, exploit the race and cause a denial of service condition on the target system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Cisco Unified Contact Center Enterprise: before 12.5.1

External links

http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ucce-tip-dos-7cdLUASb

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.