Extreme EXOS 16.x/21.x/22.x exsh Debug Shell access control

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 (≈)
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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$0-$5k0.00

Summaryinfo

A vulnerability marked as critical has been reported in Extreme EXOS 16.x/21.x/22.x. This affects an unknown function of the component exsh Debug Shell. Performing a manipulation results in access control. This vulnerability is reported as CVE-2017-14329. The attack requires a local approach. No exploit exists.

Detailsinfo

A vulnerability classified as critical has been found in Extreme EXOS 16.x/21.x/22.x. This affects an unknown code of the component exsh Debug Shell. The manipulation with an unknown input leads to a access control vulnerability. CWE is classifying the issue as CWE-264. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

Extreme EXOS 16.x, 21.x, and 22.x allows administrators to obtain a root shell via vectors involving an exsh debug shell.

The bug was discovered 10/09/2017. The weakness was disclosed 10/23/2017 (Website). It is possible to read the advisory at extremeportal.force.com. This vulnerability is uniquely identified as CVE-2017-14329 since 09/12/2017. The exploitability is told to be easy. Attacking locally is a requirement. No form of authentication is needed for exploitation. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1068 according to MITRE ATT&CK.

The vulnerability was handled as a non-public zero-day exploit for at least 14 days. During that time the estimated underground price was around $0-$5k.

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

The entries VDB-108565, VDB-108568 and VDB-108569 are pretty similar. Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Vendor

Name

Version

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: 6.7
VulDB Temp Score: 6.7
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.7
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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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: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

09/12/2017 🔍
10/09/2017 +27 days 🔍
10/23/2017 +14 days 🔍
10/23/2017 +0 days 🔍
10/24/2017 +1 days 🔍
11/30/2019 +767 days 🔍

Sourcesinfo

Advisory: extremeportal.force.com
Status: Not defined
Confirmation: 🔍

CVE: CVE-2017-14329 (🔍)
GCVE (CVE): GCVE-0-2017-14329
GCVE (VulDB): GCVE-100-108567
See also: 🔍

Entryinfo

Created: 10/24/2017 11:03
Updated: 11/30/2019 11:17
Changes: 10/24/2017 11:03 (58), 11/30/2019 11:17 (2)
Complete: 🔍
Cache ID: 216::103

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