VDB-105424 · CVE-2017-6785 · BID 100375

Cisco Unified Communications Manager 10.5(2.10000.5)/11.0(1.10000.10)/11.5(1.10000.6) Role Based Access Control HTTP Request input validation

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.1$0-$5k0.00

Summaryinfo

A vulnerability was found in Cisco Unified Communications Manager 10.5(2.10000.5)/11.0(1.10000.10)/11.5(1.10000.6) and classified as critical. Affected by this vulnerability is an unknown functionality of the component Role Based Access Control. Executing a manipulation as part of HTTP Request can lead to input validation. The identification of this vulnerability is CVE-2017-6785. The attack may be launched remotely. There is no exploit available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in Cisco Unified Communications Manager 10.5(2.10000.5)/11.0(1.10000.10)/11.5(1.10000.6) (Unified Communication Software). It has been declared as critical. This vulnerability affects an unknown code of the component Role Based Access Control. The manipulation as part of a HTTP Request leads to a input validation vulnerability. The CWE definition for the vulnerability is CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

A vulnerability in configuration modification permissions validation for Cisco Unified Communications Manager could allow an authenticated, remote attacker to perform a horizontal privilege escalation where one user can modify another user's configuration. The vulnerability is due to lack of proper Role Based Access Control (RBAC) when certain user configuration changes are requested. An attacker could exploit this vulnerability by sending an authenticated, crafted HTTP request to the targeted application. An exploit could allow the attacker to impact the integrity of the application where one user can modify the configuration of another user's information. Cisco Bug IDs: CSCve27331. Known Affected Releases: 10.5(2.10000.5), 11.0(1.10000.10), 11.5(1.10000.6).

The bug was discovered 08/16/2017. The weakness was shared 08/17/2017 with Cisco as cisco-sa-20170816-ucm as confirmed advisory (Website). The advisory is shared for download at tools.cisco.com. This vulnerability was named CVE-2017-6785 since 03/09/2017. The attack can be initiated remotely. A single authentication is needed for exploitation. There are neither technical details nor an exploit publicly available.

The vulnerability was handled as a non-public zero-day exploit for at least 1 days. During that time the estimated underground price was around $5k-$25k. The commercial vulnerability scanner Qualys is able to test this issue with plugin 316137 (Cisco Unified Communications Manager Horizontal Privilege Escalation Vulnerability (cisco-sa-20170816-ucm)).

Upgrading eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at SecurityFocus (BID 100375†). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.2

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 4.3
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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NVD Base Score: 🔍

Exploitinginfo

Class: Input validation
CWE: CWE-20
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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OpenVAS ID: 103403
OpenVAS Name: Cisco Unified Communications Manager Horizontal Privilege Escalation Vulnerability
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

03/09/2017 🔍
08/16/2017 +160 days 🔍
08/16/2017 +0 days 🔍
08/17/2017 +1 days 🔍
08/17/2017 +0 days 🔍
08/18/2017 +1 days 🔍
01/09/2021 +1240 days 🔍

Sourcesinfo

Vendor: cisco.com

Advisory: cisco-sa-20170816-ucm
Researcher: Cisco TAC Support case.
Organization: Cisco
Status: Confirmed

CVE: CVE-2017-6785 (🔍)
GCVE (CVE): GCVE-0-2017-6785
GCVE (VulDB): GCVE-100-105424
SecurityFocus: 100375 - Cisco Unified Communications Manager CVE-2017-6785 Remote Privilege Escalation Vulnerability
SecurityTracker: 1039184

Entryinfo

Created: 08/18/2017 08:45
Updated: 01/09/2021 16:09
Changes: 08/18/2017 08:45 (69), 11/08/2019 07:04 (4), 01/09/2021 16:05 (2), 01/09/2021 16:09 (1)
Complete: 🔍
Cache ID: 216::103

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