Path Traversal in Cisco Unified Communications Manager
CVE-2020-3177
A vulnerability in the Tool for Auto-Registered Phones Support (TAPS) of Cisco Unified Communications Manager (UCM) and Cisco Unified Communications Manager Session Management Edition (SME) could allow an unauthenticated, remote attacker to conduct directory traversal attacks on an affected device. The vulnerability is due to insufficient validation of user-supplied input to the TAPS interface of the affected device. An attacker could exploit this vulnerability by sending a crafted request to the TAPS interface. A successful exploit could allow the attacker to read arbitrary files in the system.
Vulnerability class: Path Traversal (Directory Traversal)
EPSS: 0.028 (85.5th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.
Affected products
- Cisco Unified Communications Manager — versions n/a
- Cisco Unified_communications_manager — versions 12.5\(1.10000.22\), 12.5(1.10000.22), 12.0\(1.10000.10\)
- Cisco Unified_contact_center_express — versions 12.0(1), 12.0\(1\)
Weakness classification (CWE)
References
- psirt@cisco.com (x_refsource_CISCO, vendor-advisory, Vendor Advisory)
Frequently asked questions
- What is CVE-2020-3177?
- CVE-2020-3177 is a high-severity vulnerability in Cisco Unified Communications Manager, classified under Path Traversal. CVSS score: 7.5/10. Published 2020-04-15.
- How severe is CVE-2020-3177?
- High severity. CVSS v3 base score is 7.5 out of 10.