Extreme Networks ExtremeWireless WiNG up to 5.8.6.8/5.9.1.2 Web User Interface Entity Expansion xml external entity reference

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.1$0-$5k0.00

Summaryinfo

A vulnerability marked as problematic has been reported in Extreme Networks ExtremeWireless WiNG up to 5.8.6.8/5.9.1.2. This issue affects some unknown processing of the component Web User Interface. Performing a manipulation results in xml external entity reference (Entity Expansion). This vulnerability is cataloged as CVE-2018-5789. It is possible to initiate the attack remotely. There is no exploit available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as problematic, was found in Extreme Networks ExtremeWireless WiNG up to 5.8.6.8/5.9.1.2. This affects an unknown code of the component Web User Interface. The manipulation with an unknown input leads to a xml external entity reference vulnerability (Entity Expansion). CWE is classifying the issue as CWE-611. The product processes an XML document that can contain XML entities with URIs that resolve to documents outside of the intended sphere of control, causing the product to embed incorrect documents into its output. This is going to have an impact on availability. The summary by CVE is:

An issue was discovered in Extreme Networks ExtremeWireless WiNG 5.x before 5.8.6.9 and 5.9.x before 5.9.1.3. There is a Remote, Unauthenticated XML Entity Expansion Denial of Service on the WiNG Access Point / Controller via crafted XML entities to the Web User Interface.

The bug was discovered 01/19/2018. The weakness was shared 02/05/2018 (Website). The advisory is shared at gtacknowledge.extremenetworks.com. This vulnerability is uniquely identified as CVE-2018-5789 since 01/19/2018. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Neither technical details nor an exploit are publicly available.

The vulnerability was handled as a non-public zero-day exploit for at least 16 days. During that time the estimated underground price was around $0-$5k.

Upgrading to version 5.8.6.9 or 5.9.1.3 eliminates this vulnerability.

The entries VDB-112807, VDB-112808, VDB-112810 and VDB-112811 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: 6.4
VulDB Meta Temp Score: 6.3

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

NVD Base Score: 7.5
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

Name: Entity Expansion
Class: Xml external entity reference / Entity Expansion
CWE: CWE-611 / CWE-610
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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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Networks ExtremeWireless WiNG 5.8.6.9/5.9.1.3

Timelineinfo

01/19/2018 🔍
01/19/2018 +0 days 🔍
02/04/2018 +16 days 🔍
02/05/2018 +1 days 🔍
02/05/2018 +0 days 🔍
01/01/2020 +695 days 🔍

Sourcesinfo

Advisory: gtacknowledge.extremenetworks.com
Status: Not defined
Confirmation: 🔍

CVE: CVE-2018-5789 (🔍)
GCVE (CVE): GCVE-0-2018-5789
GCVE (VulDB): GCVE-100-112809
See also: 🔍

Entryinfo

Created: 02/05/2018 14:57
Updated: 01/01/2020 15:24
Changes: 02/05/2018 14:57 (60), 01/01/2020 15:24 (2)
Complete: 🔍
Cache ID: 216::103

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

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