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

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.4$0-$5k0.00

Summaryinfo

A vulnerability classified as critical has been found in Extreme EXOS 16.x/21.x/22.x. Affected is an unknown function of the component exsh Restricted Shell Protection. The manipulation leads to access control. This vulnerability is traded as CVE-2017-14331. An attack has to be approached locally. There is no exploit available.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Extreme EXOS 16.x/21.x/22.x. This issue affects some unknown processing of the component exsh Restricted Shell Protection. The manipulation with an unknown input leads to a access control vulnerability. Using CWE to declare the problem leads to CWE-284. The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

Extreme EXOS 16.x, 21.x, and 22.x allows administrators to bypass the "exsh restricted shell" protection mechanism and obtain an interactive shell.

The bug was discovered 10/09/2017. The weakness was shared 10/23/2017 (Website). The advisory is shared at extremeportal.force.com. The identification of this vulnerability is CVE-2017-14331 since 09/12/2017. The exploitation is known to be easy. An attack has to be approached locally. No form of authentication is needed for a successful exploitation. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1068 for this issue.

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-108567 and VDB-108568 are related to this item. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.4
VulDB Meta Temp Score: 5.4

VulDB Base Score: 4.2
VulDB Temp Score: 4.2
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-284 / CWE-266
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-2017-14331 (🔍)
GCVE (CVE): GCVE-0-2017-14331
GCVE (VulDB): GCVE-100-108569
See also: 🔍

Entryinfo

Created: 10/24/2017 11:03
Updated: 11/30/2019 11:29
Changes: 10/24/2017 11:03 (57), 11/30/2019 11:29 (2)
Complete: 🔍
Cache ID: 216:BDE:103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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