CVE-2017-16923

Current Description

Command Injection vulnerability in app_data_center on Shenzhen Tenda Ac9 US_AC9V1.0BR_V15.03.05.14_multi_TD01, Ac9 ac9_kf_V15.03.05.19(6318_)_cn, Ac15 US_AC15V1.0BR_V15.03.05.18_multi_TD01, Ac15 US_AC15V1.0BR_V15.03.05.19_multi_TD01, Ac18 US_AC18V1.0BR_V15.03.05.05_multi_TD01, and Ac18 ac18_kf_V15.03.05.19(6318_)_cn devices allows remote unauthenticated attackers to execute arbitrary OS commands via a crafted cgi-bin/luci/usbeject?dev_name= GET request from the LAN. This occurs because the "sub_A6E8 usbeject_process_entry" function executes a system function with untrusted input.

Basic Data

Published	November 21, 2017
Last Modified	October 03, 2019
Assigner	cve@mitre.org
Data Type	CVE
Data Format	MITRE
Data Version	4.0
Problem Type	CWE-78
CVE Data Version	4.0

Base Metric V2

CVSS 2 - Version	2.0
CVSS 2 - Vector String	AV:A/AC:L/Au:N/C:C/I:C/A:C
CVSS 2 - Access Vector	ADJACENT_NETWORK
CVSS 2 - Access Complexity	LOW
CVSS 2 - Authentication	NONE
CVSS 2 - Confidentiality Impact	COMPLETE
CVSS 2 - Availability Impact	COMPLETE
CVSS 2 - Base Score	8.3
Severity	HIGH
Exploitability Score	6.5
Impact Score	10.0
Obtain All Privilege	false
Obtain User Privilege	false
Obtain Other Privilege	false

Base Metric V3

CVSS 3 - Version	3.0
CVSS 3 - Vector String	CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 3 - Attack Vector	ADJACENT_NETWORK
CVSS 3 - Attack Complexity	LOW
CVSS 3 - Privileges Required	NONE
CVSS 3 - User Interaction	NONE
CVSS 3 - Scope	UNCHANGED
CVSS 3 - Confidentiality Impact	HIGH
CVSS 3 - Integrity Impact	HIGH
CVSS 3 - Availability Impact	HIGH
CVSS 3 - Base Score	8.8
CVSS 3 - Base Severity	HIGH
Exploitability Score	2.8
Base Severity	HIGH

Configurations

AND

OR - Configuration 1

Cpe Version	Part	Vendor	Product	Version	Update	Edition	Language	SW Edition	Target SW	Target HW	Other	Version Start Including	Version End Including	Version Start Excluding	Version End Excluding
2.3	OS	Tenda	Ac9 Firmware	us_ac9v1.0br_v15.03.05.14_multi_td01	*	*	*	*	*	*	*

OR Running on/with:

Cpe Version	Part	Vendor	Product	Version	Update	Edition	Language	SW Edition	Target SW	Target HW	Other	Version Start Including	Version End Including	Version Start Excluding	Version End Excluding
2.3	Hardware	Tenda	Ac9	-	*	*	*	*	*	*	*

AND

OR - Configuration 2

Cpe Version	Part	Vendor	Product	Version	Update	Edition	Language	SW Edition	Target SW	Target HW	Other	Version Start Including	Version End Including	Version Start Excluding	Version End Excluding
2.3	OS	Tenda	Ac9 Firmware	ac9_kf_v15.03.05.19(6318_)_cn	*	*	*	*	*	*	*

OR Running on/with:

Cpe Version	Part	Vendor	Product	Version	Update	Edition	Language	SW Edition	Target SW	Target HW	Other	Version Start Including	Version End Including	Version Start Excluding	Version End Excluding
2.3	Hardware	Tenda	Ac9	-	*	*	*	*	*	*	*

AND

OR - Configuration 3

Cpe Version	Part	Vendor	Product	Version	Update	Edition	Language	SW Edition	Target SW	Target HW	Other	Version Start Including	Version End Including	Version Start Excluding	Version End Excluding
2.3	OS	Tenda	Ac15 Firmware	us_ac15v1.0br_v15.03.05.18_multi_td01	*	*	*	*	*	*	*

OR Running on/with:

Cpe Version	Part	Vendor	Product	Version	Update	Edition	Language	SW Edition	Target SW	Target HW	Other	Version Start Including	Version End Including	Version Start Excluding	Version End Excluding
2.3	Hardware	Tenda	Ac15	-	*	*	*	*	*	*	*

AND

OR - Configuration 4

Cpe Version	Part	Vendor	Product	Version	Update	Edition	Language	SW Edition	Target SW	Target HW	Other	Version Start Including	Version End Including	Version Start Excluding	Version End Excluding
2.3	OS	Tenda	Ac15 Firmware	us_ac15v1.0br_v15.03.05.19_multi_td01	*	*	*	*	*	*	*

OR Running on/with:

Cpe Version	Part	Vendor	Product	Version	Update	Edition	Language	SW Edition	Target SW	Target HW	Other	Version Start Including	Version End Including	Version Start Excluding	Version End Excluding
2.3	Hardware	Tenda	Ac15	-	*	*	*	*	*	*	*

AND

OR - Configuration 5

Cpe Version	Part	Vendor	Product	Version	Update	Edition	Language	SW Edition	Target SW	Target HW	Other	Version Start Including	Version End Including	Version Start Excluding	Version End Excluding
2.3	OS	Tenda	Ac18 Firmware	us_ac18v1.0br_v15.03.05.05_multi_td01	*	*	*	*	*	*	*

OR Running on/with:

Cpe Version	Part	Vendor	Product	Version	Update	Edition	Language	SW Edition	Target SW	Target HW	Other	Version Start Including	Version End Including	Version Start Excluding	Version End Excluding
2.3	Hardware	Tenda	Ac18	-	*	*	*	*	*	*	*

AND

OR - Configuration 6

Cpe Version	Part	Vendor	Product	Version	Update	Edition	Language	SW Edition	Target SW	Target HW	Other	Version Start Including	Version End Including	Version Start Excluding	Version End Excluding
2.3	OS	Tenda	Ac18 Firmware	ac18_kf_v15.03.05.19(6318_)_cn	*	*	*	*	*	*	*

OR Running on/with:

Cpe Version	Part	Vendor	Product	Version	Update	Edition	Language	SW Edition	Target SW	Target HW	Other	Version Start Including	Version End Including	Version Start Excluding	Version End Excluding
2.3	Hardware	Tenda	Ac18	-	*	*	*	*	*	*	*

Vulnerable Software List

Vendor	Product	Versions
Tenda	Ac9 Firmware	ac9_kf_v15.03.05.19(6318_)_cn, us_ac9v1.0br_v15.03.05.14_multi_td01
Tenda	Ac15 Firmware	us_ac15v1.0br_v15.03.05.18_multi_td01, us_ac15v1.0br_v15.03.05.19_multi_td01
Tenda	Ac18 Firmware	ac18_kf_v15.03.05.19(6318_)_cn, us_ac18v1.0br_v15.03.05.05_multi_td01

References

Name	Source	URL	Tags
https://github.com/Iolop/Poc/tree/master/Router/Tenda	https://github.com/Iolop/Poc/tree/master/Router/Tenda	MISC	Issue Tracking Third Party Advisory