Vulnerability Name:

CVE-2020-3177 (CCN-179889)

Assigned:2019-12-12
Published:2020-04-15
Updated:2020-04-28
Summary: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.
CVSS v3 Severity:7.5 High (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N)
6.5 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): High
Integrity (I): None
Availibility (A): None
7.5 High (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N)
6.5 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): High
Integrity (I): None
Availibility (A): None
CVSS v2 Severity:5.0 Medium (CVSS v2 Vector: AV:N/AC:L/Au:N/C:P/I:N/A:N)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (Au): None
Impact Metrics:Confidentiality (C): Partial
Integrity (I): None
Availibility (A): None
7.8 High (CCN CVSS v2 Vector: AV:N/AC:L/Au:N/C:C/I:N/A:N)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): None
Impact Metrics:Confidentiality (C): Complete
Integrity (I): None
Availibility (A): None
Vulnerability Type:CWE-22
Vulnerability Consequences:Obtain Information
References:Source: MITRE
Type: CNA
CVE-2020-3177

Source: XF
Type: UNKNOWN
cisco-cve20203177-dir-traversal(179889)

Source: CCN
Type: Cisco Security Advisory cisco-sa-cucm-taps-path-trav-pfsFO93r
Cisco Unified Communications Manager Path Traversal Vulnerability

Source: CISCO
Type: Vendor Advisory
20200415 Cisco Unified Communications Manager Path Traversal Vulnerability

Vulnerable Configuration:Configuration 1:
  • cpe:/a:cisco:unified_communications_manager:10.5(2.10000.5):*:*:*:*:*:*:*
  • OR cpe:/a:cisco:unified_communications_manager:11.5(1.10000.6):*:*:*:*:*:*:*
  • OR cpe:/a:cisco:unified_communications_manager:12.0(1.10000.10):*:*:*:*:*:*:*
  • OR cpe:/a:cisco:unified_communications_manager:12.5(1.10000.22):*:*:*:*:*:*:*
  • OR cpe:/a:cisco:unified_contact_center_express:12.0(1):*:*:*:*:*:*:*

    • Configuration CCN 1:
  • cpe:/a:cisco:unified_communications_manager:*:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    BACK
    cisco unified communications manager 10.5(2.10000.5)
    cisco unified communications manager 11.5(1.10000.6)
    cisco unified communications manager 12.0(1.10000.10)
    cisco unified communications manager 12.5(1.10000.22)
    cisco unified contact center express 12.0(1)
    cisco unified communications manager *