Moxa EDR-810 4.1 Build 17030317 Web Server /MOXA\_CFG.ini null pointer dereference

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.7$0-$5k0.00

Summaryinfo

A vulnerability identified as problematic has been detected in Moxa EDR-810 4.1 Build 17030317. The impacted element is an unknown function of the file /MOXA\_CFG.ini of the component Web Server. The manipulation leads to null pointer dereference. This vulnerability is uniquely identified as CVE-2017-14435. The attack is possible to be carried out remotely. No exploit exists. It is recommended to apply restrictive firewalling.

Detailsinfo

A vulnerability was found in Moxa EDR-810 4.1 Build 17030317 (Automation Software) and classified as problematic. This issue affects some unknown functionality of the file /MOXA\_CFG.ini of the component Web Server. The manipulation with an unknown input leads to a null pointer dereference vulnerability. Using CWE to declare the problem leads to CWE-476. A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit. Impacted is availability. The summary by CVE is:

An exploitable denial of service vulnerability exists in the web server functionality of Moxa EDR-810 V4.1 build 17030317. A specially crafted HTTP URI can cause a null pointer dereference resulting in denial of service. An attacker can send a GET request to "/MOXA\_CFG.ini" without a cookie header to trigger this vulnerability.

The bug was discovered 04/13/2018. The weakness was disclosed 05/14/2018 (Website). It is possible to read the advisory at talosintelligence.com. The identification of this vulnerability is CVE-2017-14435 since 09/13/2017. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details of the vulnerability are known, but there is no available exploit.

The vulnerability was handled as a non-public zero-day exploit for at least 31 days. During that time the estimated underground price was around $0-$5k. By approaching the search of inurl:MOXA\_CFG.ini it is possible to find vulnerable targets with Google Hacking.

Addressing this vulnerability is possible by firewalling .

The entries VDB-117708 and VDB-117709 are pretty similar. Statistical analysis made it clear that VulDB provides the best quality 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: 6.8
VulDB Meta Temp Score: 6.7

VulDB Base Score: 5.3
VulDB Temp Score: 5.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CNA Base Score: 7.5
CNA Vector (Talos): 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Null pointer dereference
CWE: CWE-476 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined
Google Hack: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Firewall
Status: 🔍

0-Day Time: 🔍

Timelineinfo

09/13/2017 🔍
04/13/2018 +212 days 🔍
05/14/2018 +30 days 🔍
05/14/2018 +0 days 🔍
05/15/2018 +1 days 🔍
03/13/2023 +1763 days 🔍

Sourcesinfo

Vendor: moxa.com

Advisory: talosintelligence.com
Status: Not defined

CVE: CVE-2017-14435 (🔍)
GCVE (CVE): GCVE-0-2017-14435
GCVE (VulDB): GCVE-100-117707
See also: 🔍

Entryinfo

Created: 05/15/2018 08:33
Updated: 03/13/2023 08:57
Changes: 05/15/2018 08:33 (60), 02/05/2020 08:43 (1), 03/13/2023 08:57 (14)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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