Privilege escalation in Cisco Unified Communications Products
| Risk | Low |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2023-20266 |
| CWE-ID | CWE-264 |
| Exploitation vector | Network |
| Public exploit | N/A |
| Vulnerable software |
Cisco Emergency Responder Other software / Other software solutions Cisco Unified Communications Manager Server applications / Other server solutions Cisco Unified Communications Manager Session Management Edition Server applications / Remote management servers, RDP, SSH Cisco Unity Connection Client/Desktop applications / Messaging software |
| Vendor | Cisco Systems, Inc |
Security Bulletin
This security bulletin contains one low risk vulnerability.
1) Permissions, Privileges, and Access Controls
EUVDB-ID: #VU80178
Risk: Low
CVSSv3.1: 6.3 [CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2023-20266
CWE-ID:
CWE-264 - Permissions, Privileges, and Access Controls
Exploit availability: No
DescriptionThe vulnerability allows a remote user to escalate privileges on the system.
The vulnerability exists due to the affected application does not properly restrict the files that are being used for upgrades. A remote administrator can use a specially crafted upgrade file and elevate privileges to root.
MitigationInstall updates from vendor's website.
Vulnerable software versionsCisco Emergency Responder: 12.5.1SU4 - 14SU3
Cisco Unified Communications Manager: 12.5.1SU8
Cisco Unified Communications Manager Session Management Edition: 12.5.1SU8
Cisco Unity Connection: 12.5.1SU6 - 14SU3
CPE2.3- cpe:2.3:a:cisco_systems:cisco_emergency_responder:12.5.1SU4:*:*:*:*:*:*:
- cpe:2.3:a:cisco_systems:cisco_emergency_responder:12.5.1SU8a:*:*:*:*:*:*:
- cpe:2.3:a:cisco_systems:cisco_emergency_responder:14SU3:*:*:*:*:*:*:
- cpe:2.3:a:cisco_systems:Unified CM:12.5.1SU8:*:*:*:*:*:*:
- cpe:2.3:a:cisco_systems:cisco_unified_communications_manager_session_management_edition:12.5.1SU8:*:*:*:*:*:*:
- cpe:2.3:a:cisco_systems:cisco_unity_connection:12.5.1SU6:*:*:*:*:*:*:
- cpe:2.3:a:cisco_systems:cisco_unity_connection:12.5.1SU7:*:*:*:*:*:*:
- cpe:2.3:a:cisco_systems:cisco_unity_connection:12.5.1SU8:*:*:*:*:*:*:
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote authenticated privileged user via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
