Cisco WebEx Meetings Server 2.6 os command injection

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.
CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
6.7$5k-$25k0.00

Summaryinfo

A vulnerability was found in Cisco WebEx Meetings Server 2.6. It has been rated as critical. Impacted is an unknown function. Performing a manipulation results in os command injection. This vulnerability is identified as CVE-2017-3796. The attack can be initiated remotely. There is not any exploit available.

Detailsinfo

A vulnerability was found in Cisco WebEx Meetings Server 2.6 (Unified Communication Software). It has been classified as critical. This affects an unknown function. The manipulation with an unknown input leads to a os command injection vulnerability. CWE is classifying the issue as CWE-78. The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

A vulnerability in Cisco WebEx Meetings Server could allow an authenticated, remote attacker to execute predetermined shell commands on other hosts. More Information: CSCuz03353. Known Affected Releases: 2.6.

The bug was discovered 01/18/2017. The weakness was released 01/26/2017 with Cisco as CSCuz03353 as confirmed advisory (Website). It is possible to read the advisory at securityfocus.com. This vulnerability is uniquely identified as CVE-2017-3796 since 12/21/2016. The exploitability is told to be easy. It is possible to initiate the attack remotely. The successful exploitation requires a authentication. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 05/14/2026). The attack technique deployed by this issue is T1202 according to MITRE ATT&CK.

The vulnerability was handled as a non-public zero-day exploit for at least 8 days. During that time the estimated underground price was around $5k-$25k.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at SecurityFocus (BID 95641†). Entries connected to this vulnerability are available at VDB-95992, VDB-95990 and VDB-95989. Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.7
VulDB Meta Temp Score: 6.7

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

NVD Base Score: 7.2
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock

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

NVD Base Score: 🔍

Exploitinginfo

Class: Os command injection
CWE: CWE-78 / CWE-77 / CWE-74
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-DayUnlockUnlockUnlockUnlock
TodayUnlockUnlockUnlockUnlock

OpenVAS ID: 803167
OpenVAS Name: Cisco WebEx Meetings Server Command Bypass Vulnerability
OpenVAS File: 🔍
OpenVAS Family: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

12/21/2016 🔍
01/18/2017 +28 days 🔍
01/18/2017 +0 days 🔍
01/26/2017 +8 days 🔍
01/26/2017 +0 days 🔍
01/26/2017 +0 days 🔍
05/14/2026 +3395 days 🔍

Sourcesinfo

Vendor: cisco.com

Advisory: CSCuz03353⛔
Organization: Cisco
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2017-3796 (🔍)
GCVE (CVE): GCVE-0-2017-3796
GCVE (VulDB): GCVE-100-95991
SecurityFocus: 95641 - Cisco WebEx Meetings Server CVE-2017-3796 Remote Command Execution Vulnerability
OSVDB: - CVE-2017-3796 - Cisco - WMS - Command Execution Issue
SecurityTracker: 1037651

See also: 🔍

Entryinfo

Created: 01/26/2017 14:57
Updated: 05/14/2026 21:10
Changes: 01/26/2017 14:57 (64), 08/02/2020 09:23 (7), 11/04/2022 08:35 (2), 05/14/2026 21:10 (15)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Do you want to use VulDB in your project?

Use the official API to access entries easily!