Cisco Unified Communications Manager TAPS path traversal

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CVSS Meta Temp Score
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CTI Interest Score
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6.1$0-$5k0.00

A vulnerability, which was classified as critical, has been found in Cisco Unified Communications Manager and Unified Communications Manager Session Management Edition (Unified Communication Software) (affected version not known). Affected by this issue is an unknown functionality of the component TAPS Handler. The manipulation with an unknown input leads to a directory traversal vulnerability. Using CWE to declare the problem leads to CWE-22. Impacted is confidentiality. CVE summarizes:

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.

The weakness was disclosed 04/15/2020 as cisco-sa-cucm-taps-path-trav-p as confirmed advisory (Website). The advisory is shared for download at tools.cisco.com. This vulnerability is handled as CVE-2020-3177 since 12/12/2019. The attack may be launched remotely. No form of authentication is required for exploitation. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 04/16/2020).

Upgrading eliminates this vulnerability.

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CPE 2.3infoedit

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CVSSv3infoedit

VulDB Meta Base Score: 6.4
VulDB Meta Temp Score: 6.1

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔒

CVSSv2infoedit

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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfoedit

Class: Directory traversal
CWE: CWE-22
ATT&CK: Unknown

Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfoedit

Threat: 🔍
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Countermeasuresinfoedit

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Timelineinfoedit

12/12/2019 CVE assigned
04/15/2020 +125 days Advisory disclosed
04/16/2020 +1 days VulDB entry created
04/16/2020 +0 days VulDB last update

Sourcesinfoedit

Vendor: https://www.cisco.com/

Advisory: cisco-sa-cucm-taps-path-trav-p
Status: Confirmed

CVE: CVE-2020-3177 (🔒)

Entryinfoedit

Created: 04/16/2020 01:54 PM
Updated: 04/16/2020 01:59 PM
Changes: (12) software_type vulnerability_cwe vulnerability_cvss3_nvd_av vulnerability_cvss3_nvd_ac vulnerability_cvss3_nvd_pr vulnerability_cvss3_nvd_ui vulnerability_cvss3_nvd_s vulnerability_cvss3_nvd_c vulnerability_cvss3_nvd_i vulnerability_cvss3_nvd_a source_cve_assigned source_cve_nvd_summary
Complete: 🔍

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