VDB-107492 · CVE-2017-12266 · BID 101158

Cisco Meeting App prior CSCvd77907 on Windows DLL Loader access control

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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4.6$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic was found in Cisco Meeting App on Windows. Affected by this vulnerability is an unknown functionality of the component DLL Loader. Such manipulation leads to access control. This vulnerability is uniquely identified as CVE-2017-12266. Local access is required to approach this attack. No exploit exists. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in Cisco Meeting App on Windows and classified as problematic. Affected by this issue is an unknown function of the component DLL Loader. The manipulation with an unknown input leads to a access control vulnerability. Using CWE to declare the problem leads to CWE-264. Impacted is confidentiality, integrity, and availability. CVE summarizes:

A vulnerability in the routine that loads DLL files in Cisco Meeting App for Windows could allow an authenticated, local attacker to run an executable file with privileges equivalent to those of Cisco Meeting App. The vulnerability is due to incomplete input validation of the path name for DLL files before they are loaded. An attacker could exploit this vulnerability by installing a crafted DLL file in a specific system directory. A successful exploit could allow the attacker to execute commands on the underlying Microsoft Windows host with privileges equivalent to those of Cisco Meeting App. The attacker would need valid user credentials to exploit this vulnerability. Cisco Bug IDs: CSCvd77907.

The bug was discovered 10/04/2017. The weakness was disclosed 10/05/2017 by Venustech with Adlab of Venustech as cisco-sa-20171004-cma as confirmed advisory (Website). The advisory is shared for download at tools.cisco.com. This vulnerability is handled as CVE-2017-12266 since 08/03/2017. The attack needs to be approached locally. The successful exploitation requires a simple authentication. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1068.

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.

Upgrading to version CSCvd77907 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at SecurityFocus (BID 101158†). Once again VulDB remains the best source for vulnerability data.

Productinfo

Vendor

Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.8
VulDB Meta Temp Score: 4.7

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

NVD Base Score: 4.2
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Access control
CWE: CWE-264
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Meeting App CSCvd77907

Timelineinfo

08/03/2017 🔍
10/04/2017 +62 days 🔍
10/04/2017 +0 days 🔍
10/05/2017 +1 days 🔍
10/05/2017 +0 days 🔍
10/05/2017 +0 days 🔍
01/15/2021 +1198 days 🔍

Sourcesinfo

Vendor: cisco.com

Advisory: cisco-sa-20171004-cma
Researcher: ADLab (Venustech)
Organization: Adlab of Venustech
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2017-12266 (🔍)
GCVE (CVE): GCVE-0-2017-12266
GCVE (VulDB): GCVE-100-107492
SecurityFocus: 101158 - Cisco Meeting App CVE-2017-12266 Local Privilege Escalation Vulnerability

Entryinfo

Created: 10/05/2017 15:00
Updated: 01/15/2021 15:12
Changes: 10/05/2017 15:00 (64), 11/22/2019 10:08 (5), 01/15/2021 15:12 (2)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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